יומן של Insects - Southern Africa (identified for the 1st time on iNat or difficult to identify)

אפריל 21, 2024

Dichtha inflata (Gerstäcker 1854)

Dichtha inflata is the type species of the genus Dichtha, erected and described by Haag-Rutenberg:

  • Maxillary palps hardly axe-shaped. Head retractable. Antennae robust.
  • Thorax subglobose, deeply emarginate anteriorly, angles produced, base rounded, angles absent.
  • Scutellum triangular, apex excavated on both sides, smooth in the middle, produced.
  • Elytra enlarged, moderately convex; marginal carina very elevated, epipleura [lateral interval] subvertical. [Elytra often depressed, almost flat in Distretus]
  • The prosternum is strongly produced anteriorly, covering the lower part of the head.
  • The legs are slightly elongated, the femora, especially the front ones, are thickened.

Dichtha inflata is a reddish-brownish opaque beetle with very expanded elytra of red-brownish ground colour with three pairs of black stripes on each elytron. Elytral disc almost smooth, with indistinct puncture-dots and sharp marginal costae. Lateral interval almost vertical and with few scattered punctures only.

Original description in:
Gerstaecker A. 1854. Bericht über die zur Bekanntmachung geeigneten Verhandlungen der Königl. Preuss. Akademie der Wissenschaften zu Berlin.

Redescription & illustration in Peters Reise. Vol 5. 1862
Plate 16, fig. 12: https://www.biodiversitylibrary.org/item/103636#page/627/mode/1up
Translated from Latin & German:
Black, dark, antennae and legs densely yellow-tomentose: thorax humped, strongly wrinkled-punctate,
elytra expanded, reddish-grey, obsoletely black-lined.
The head is roughly dotted with wrinkles, dull black, the head shield is set off by an indistinct transverse furrow; the lip and mandibles are black, the palps pitch brown. The antennae are black, covered with dense yellow-brown tomanetum, the first two segments bare, reddish brown. The pronotum is semi-ovoid, deeply emarginate at the anterior edge, with sharply protruding anterior angles, the lateral margins notched, the surface curved backwards, roughly dotted with pits and wrinkles, matt black, appearing more or less gray due to earthy deposits in the punctures. The pronotum is dense and fairly finely punctured on the anterior, raised part. The elytra are together twice as wide as the pronotum, seen from above almost square with rounded corners, laterally with a sharp, slightly bent irregular costa, which disappears in front of the tip towards the suture. The surface is moderately convex, dull reddish gray, with six often indistinct black longitudinal stripes, arranged in pairs. At higher magnification one notices very fine and scattered punctures on it; the lateral surfaces [lateral intervals], on the other hand, which descend vertically from the sharp edge, are covered with clear, scattered dots. The underside is black, with a slight sheen, the anterior abdominal segments very finely wrinkled lengthwise, the posterior ones individually punctured. The legs are short, densely covered with yellow-brown tomentum.

Type locality: Tete, Mozambique

Haag-Rutenberg's description (also informative) in:
Haag-Rutenberg G. 1871. Beiträge zur Familie der Tenebrioniden (II. Stück). Coleopterologische Hefte VII.
Translated from Latin & German:
Oval, brown, opaque; antennae and legs densely yellowish-gray tomentose, head rugose, thorax posteriorly constricted, anteriorly emarginate, with sharp angles, globose above, coarsely pitted and punctured, sometimes with some smooth patches; elytra almost square, moderately convex, suture and marginal costae subcristate, curved, abbreviated at the apex, raised high; the elytral disc is scarcely punctate, with black lines; body beneath dark, scarcely punctate. - Length 20-22 mm, width 14-16 mm.
The whole beetle is dull, dirty dark brown, with 5-6 black longitudinal stripes across the elytral disc instead of the costae. The head and pronotum are very coarsely wrinkled and punctured every now and then with individual larger shiny elevations present. Legs and antennae are densely covered with yellow-gray tomentum.
Mozambique and Zambezi.

Photos of a male and a female from Lilongwe, Malawi, close to type locality on RBINS Virtual Collections:

iNat observation:

הועלה ב-אפריל 21, 2024 12:38 אחה"צ על ידי traianbertau traianbertau | תגובה 1 | הוספת תגובה

אפריל 20, 2024

Paramantis prasina (Serville 1839)

A green or brown Mantid with four brownish callous spots (sometimes only 3) on the inner side of the fore coxae. Femora without black marks, spines black-tipped.
Length: 40-50 mm (male); 62-78 mm (female).
Saussure (1899) gives the following diagnosis: This species is excellently characterized among all species of the genus, firstly by their four reddish-brown polished calluses, which protrude flat-button-shaped on the inside of the coxae, and secondly especially through the elytra, which are leathery and opaque, but suddenly narrow and crystal clear at the rear edge. Strangely enough, the elytra are more leathery and opaque (coriaceus) in males than in females, which is not the case in any other species of mantids. Also, all the males we know are of reddish-brown color, while the females are, as usual, light green. In the male the marginal area is sometimes green, but sometimes also completely brown, like the rest of the elytra.

This species has also been described as Mantis emortualis by Saussure (1869, 1871) and Mantis callifera from Cape of Good Hope by Wood Manson: https://www.biodiversitylibrary.org/partpdf/245308.

Note: All species of Paramantis and several Mantis have the femora II und III without genicular spine projecting from genicular lobes of the femora and coxa I is decorated with 1-4 whitish, yellowish, brownish or black callous spots (rounded or ovale, somtimes outlined in black). And the ventral side of the coxae carry callous spots also in other genera such as Sphodomantris.

Original description (Mantis parasina) in:
Audinet-Serville J. G. 1839. Histoire naturelle des insectes. Orthoptères. Librairie Encyclopédique de Roret; Paris.
Translated from French:
Female: She looks a lot like Mantis religiosa, but it is more slender in all its proportions, entirely of a tender green. Prothorax unicarinate in the middle, laterally marginate, very finely denticulated on the margin of its dilated part [...]. Elytra opaque elytra, apple green, with the entire posterior margin transparent and colorless; anterior margin narrow, barely a quarter of the total width of the elytron. Wings the length of the elytra, very transparent, the front margin and the tip tinged with greenish; sinus pronounced, and the veins whitish. Antennae and legs of the same colour as the body; anterior coxae without spines, having on their internal surface three or four calloused, brownish, rounded and shiny spots; inner surface of the anterior femora broadly bordered yellow at the bottom.

Type locality: Mauritius ('Ile-de-France')
(not 'Cape Provinces' as stated in Mantodea Species File)

Detailled description of the male by Saussure 1895:

Male illustrated in Saussure 1871:

Distribution: Widely distributed in Subsaharan Africa (Angola, Cameroon, Ghana, Guinea, Ivory Coast, Kenya, Rwanda, South Africa, Tanzania and Togo), Madagascar, Reunion, Mauritius.

Photos of a living and voucher specimens (female) from Rwanda:

iNat observation: https://www.inaturalist.org/observations/208102985

Saussure 1899. Orthoptera. Wissenschaftliche Ergebnisse der Reisen in Madagaskar und Ostafrika in den Jahren 1889-95 von Dr. A. Voeltzkow. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft 21.

Saussure 1895. Histoire physique, naturelle, et politique de Madagascar 24
Figure 24: https://www.biodiversitylibrary.org/item/21293#page/297/mode/1up

Saussure 1869. Essai d'un Système des Mantides. Mitteilungen der Schweizerischen Entomologischen Gesellschaft 3.

Saussure 1871. Mélanges orthoptérologiques. III Fascicule. Mantides. Mémoires de la
Société de Physique et dHistoire Naturelle de Genève 2.
Figure 37: https://www.biodiversitylibrary.org/item/122147#page/389/mode/1up

הועלה ב-אפריל 20, 2024 01:32 אחה"צ על ידי traianbertau traianbertau | 0 תגובות | הוספת תגובה

אפריל 19, 2024

Distretus (Distretus) amplipennis (Fåhraeus 1870)

A darkish opaque toktokkie with very expanded flattened elytra, marked with four dark-red indistinct stripes, elytral surface almost without sculpture, but covered with grey scaly hairs.

Original description in:
Fåhraeus 1870. Coleoptera Caffrariae, annis 1838–1845 a J. A. Wahlberg collecta. Heteromera descripsit. Öfversigt af Kongliga Vetenskaps-Akademiens Förhandlingar 27
Translated from Latin:
Subovate, black, opaque, head and thorax wrinkled; elytra sparsely punctate, very finely gray-scaly, marked with four very obsolete rufescent stripes, anteriorly flattened, above with a distinct marginal carina, the sides deflexed and smooth. Length. 15-17 mm, width 10-10.5 mm.
Head short, turned down, above wrinkled, apex truncate. Antennae reaching the shoulders, filiform, thinly gray-hairy [...]. The thorax is markedly rounded-enlarged, base truncated, apex on both sides sinuous, with spiniform angles; cushion-shaped above, coarsely pitted-wrinkled on all sides [...]. Elytra with humeral angles slightly rounded, elytra rounded-expanded, three times wider than the base of the thorax, tip jointly narrowly rounded; above, almost flat at the front, sloping at the back, finely and distantly punctate, sparingly covered with gray small scales, marked with four longitudinal brownish-reddish lines, more or less obsolete, dorsal lateral carina sharp, before apex shortened, sides bent, almost smooth. Pectus and 3 anterior abdominal segments wrinkled-punctate. Legs elongated, thin, pitch-dark, with short pilosity, the anterior femora a little thickened.

Shorter redescription in:
Haag-Rutenberg G. 1871. Beiträge zur Familie der Tenebrioniden (II. Stück). Coleopterologische Hefte VII.
Translated from German:
Head and pronotum very coarsely and densely punctured. Elytra very broadened, widely rounded towards the sides, but so strongly depressed that they are almost flat. The lateral carina runs past the apical slope, where it bends inward and suddenly stops. Upper surface almost barely punctured and extremely fine gray pilose, with four dark red longitudinal stripes, sometimes barely visible. Antennae and legs slim.

Distribution: GBIF records from Northern South Africa (Gauteng, Limpopo), Botswana, Zimbabwe, Mozambique, Zambia, Malawi.

iNat observation:

הועלה ב-אפריל 19, 2024 03:15 אחה"צ על ידי traianbertau traianbertau | 0 תגובות | הוספת תגובה

אפריל 18, 2024

Pompilus cadmius Saussure, 1891

Body almost entirely whitish grey-pubescent; wings almost hyline with dark tip, intercubital vein between SMC 2 and 3 perpendicular; SMC 3 higher than SMC 2.

Original description in:
Saussure, H. L. F. De. 1891. Hymenoptères nouveaux de Madagascar. Mittheilungen der Schweizer entomologischen Gesellschaft 8 (7)
Translated from Latin:
Black, not punctuated, completely cinereous-gray-silky pubescent; clypeus short, transverse; pronotum sub-angulated on both sides, posteriorly posteriorly cut at an angle; mesonotum with 2 furrows; scutellum compressed; postscutellum bimamilar; metanotum rounded, smooth, neither truncated, nor striped; abdomen fusiform; segments gray-silver-bordered; tibial calcars testaceous, the posterior ones the longest; wings hyaline-clouded, the tip brown. [...] Female length 12 - 16 mm.

Illustration in:
Saussure, H. L. F. De. 1892. Histoire physique, naturelle et politique de Madagascar. XX. Histoire naturelles des Hymenopteres.

Redescription (and key) with figures in:
Day, M. C. 1981. A revision of Pompilus Fabricius (Hymenoptera: Pompilidae), with further nomenclatural and biological considerations. Bulletin of the British Museum (Natural History) Entomology, volume 42, issue 1, pages 1-42.
Length 6-13 mm. Black; extensively and very uniformly white-pubescent, save black on antennal flagellum and anterior margins of some sterna; postnotum devoid of pubescence. Terminal tarsal segments tending to a brownish colour; calcaria white or stramineous. Wings hyaline or fusco-hyaline, forewings with infuscate tips. With long erect white hairs on temples and adjacent areas of prothorax and fore coxae. Sterna with very few erect black hairs. Face very broad below, narrowed considerably above, less so in Madagascan and South African specimens (Fig. 4). Malar space well developed adjacent to temples, less so adjacent to clypeus. Clypeus approximately 4.0 times as broad as high, margin slightly arcuate; labrum exposed. Temples well developed. Pronotal hind margin angulate, postnotum laterally about half length of centre of postscutellum, considerably narrowed centrally. Propodeum narrow and rounded posteriorly, with distinct dorsal longitudinal impression in midline. Venation of forewing highly characteristic, SMC 3 higher than SMC 2, second intercubital vein perpendicular, stigma large (Fig. 1 7). Sixth tergum with hairs very strongly modified as distinct, contiguous globular scales, obscuring most of dorsal surface of tergum, and also extending onto lateral surface. Fore metatarsus with three comb-spines and two inferior comb-spines. Terminal tarsal segments lack spines beneath except a few extremely minute spines proximally in some specimens.
5-8 mm. Black; extensively and uniformly grey-pubescent, save sometimes dark anteriorly on terga or sterna. With limited erect hair, mostly on temples. Head broad, face broad (Fig. 22), malar space developed. Distal antennal segments usually markedly thickened. Propodeum rounded in profile, narrow behind, with a well-marked median longitudinal sulcus. Wing venation as female. SGP with few erect hairs. Tarsal claws dentate, uniform. Fore metatarsus with two comb-spines and one much shorter inferior comb-spine.

Distribution: Central and southern Africa, Madagascar
Map: https://www.biodiversitylibrary.org/page/2247124#page/42/mode/1up

iNat observations:

Description of junior synonym Psammochares latilabris
in Arnold 1937: https://journals.co.za/doi/pdf/10.10520/AJA00411752_510

הועלה ב-אפריל 18, 2024 06:57 אחה"צ על ידי traianbertau traianbertau | תגובה 1 | הוספת תגובה

Ampulex denticollis (Cameron 1910)

Pronotal collar with transversely placed small, low and blunt teeth at about or a little behind middle; body black, without metallic lustre. Forewing with two cubital cells. Legs with coxae and femora fusco-ferruginous and tibiae and tarsi ferruginous (occasionally legs are entirely ferruginous); abdomen dull, microscopically reticulate-punctate.

Distribution: Cape, KZN, eSwatini, NE South Africa and Zimbabwe.

Original description (Dolichurus denticollis) in:
Cameron, P. 1910. On the Aculeate Hymenoptera collected by Mr A.J.T. Janse, Normal College, Pretoria, in the Transvaal. Annals of the Transvaal Museum, vol 2.
Black; the apex and centre of clypeus, mandibles, the antennae and tarsi, rufo-testaceous; the apical joints of the antennae darker-coloured than the others; wings hyaline ; the nervures and stigma black; a fuscous cloud behind the submedian nervure, and a narrower one, narrowed in front, behind the posterior part of the transverse basal, one filling the radial cellule, one, obliquely narrowed behind, beyond the middle of the first cubital cellule, one almost filling the second, and a semicircular one in front of the second recurrent along its anterior three-fourths; tegulae fuscous; the head, thorax, and legs covered with white down. Female.
Length, 6 mm.
Head opaque, finely, closely punctured, the inner orbits with a narrow, irregularly striated band; hind ocelli separated from each other by half the distance they are from the eyes; pronotum alutaceous, the depressed sides thickly covered with depressed silvery pubescence; the centre from the teeth furrowed, and bearing large, round, clearly separated punctures; the apex transverse, furrowed; the centre of mesonotum with a large, strongly punctured band, nearer the base than the apex; the furrows are complete; metanotum irregularly, transversely striated, with a central and three lateral longitudinal keels; the central straight, the second converging towards its middle, the outer two more irregular; pro- and mesopleurae opaque, alutaceous, densely covered with white pubescence; the metapleurae smooth, shining, bare, with a stout oblique keel above the middle on the basal half; metanotal spines almost as long as they are wide at the base ; abdominal petiole almost twice longer than wide.

Redescription and figures in:
Arnold, G. 1927. The Sphegidae of South Africa. Part VIII. Annals of the Transvaal Museum
Figure 6: https://www.biodiversitylibrary.org/item/286730#page/171/mode/1up

Arnold (1928) published a key to southern African species of Ampulex, and Gess (1984) updated (added 5 species) the section dealing with those species in which the pronotum is not posteriorly raised into a conical tubercle - this includes Ampulex denticollis.

Arnold, G. (1928). The Sphegidae of South Africa. Part 9. Ann. Transv. Mus. 12 (3): 191-279.
Gess, F. W. (1984). Contribution to the taxonomy of the southern African species of Ampulex Jurine (Hymenoptera: Sphecidae: Ampulicinae). Annals of the Cape Provincial Museums. Natural history, 16(1). https://www.biodiversitylibrary.org/page/52273737

iNat observations:

הועלה ב-אפריל 18, 2024 01:45 אחה"צ על ידי traianbertau traianbertau | 2 תגובות | הוספת תגובה

אפריל 17, 2024

Graphipterus insidiosus Péringuey, 1896

Elytra elongato-quadrate, outer sides nearly straight, greyish, with four dark brown bands on each elytron. Pronotum without a median black band.

Original description (and key) in:
Peringuey, L. Descriptive catalogue of the Coleoptera of South Africa. The Coleoptera of South Africa. Part II. Carabidae. Transactions of the South African Philosophical Society, 7.
Black with a pale ochraceous pubescence; head with a narrow, longitudinal denuded band ; the two basal joints of antennae reddish; the other joints and the legs black; prothorax short, nearly twice as broad as long; anterior angles not sharp, densely pubescent; elytra nearly as broad as long, and rounded laterally at the shoulder and the posterior angle, roughly and closely punctured, and having on each side three ochraceous pubescent lines equally distant from one another and reaching from base to apex; the outer margin is broadly pubescent, the band being moderately broad; under side piceous.

Type locality: Mozambique, Maputo province, Lembobo mountains in the vicinity of Nkomati railway station.

Illustrated in:
Junod, H. A. 1899. La faune entomologique de Delagoa. Bulletin de la Société vaudoise des sciences naturelles 35.
Plate 1, figure 8.

iNat observation: https://www.inaturalist.org/observations/199094412

הועלה ב-אפריל 17, 2024 08:41 לפנה"צ על ידי traianbertau traianbertau | 0 תגובות | הוספת תגובה

אפריל 16, 2024

Amiantus undosus Distant 1892

Original description & illustration in:
Distant, W. L. 1892. A Naturalist in the Transvaal. R. H. Porter, London.
Page 199 description; page 297, table 1 illustration.

Black; legs dark fuscous. Pronotum small, subglobular, strongly and reticulately rugose; head with the front rugose, but much more finely so than the pronotum; antennae dark fuscous, blackish towards the base. Abdomen above subovate, slightly gibbous, strongly depressed posteriorly; lateral margins of the elytra convex; surface of the elytra covered with strong, waved,undulating rugosities and coarsely punctate, but not quite extending to their apices. Sternum very coarsely punctate and subrugulose; abdomen beneath glabrous, shining black, some-what coarsely punctate.
Long. 12 millim. Pretoria.

Distribution: Probably only known from type locality.

iNat observation: https://www.inaturalist.org/observations/68122996

הועלה ב-אפריל 16, 2024 03:13 אחה"צ על ידי traianbertau traianbertau | 0 תגובות | הוספת תגובה

Amiantus undatus Haag-Rutenberg, 1875

Original description in:
Haag-Rutenberg G. 1875. Beiträge zur Familie der Tenebrioniden (V. Stück). Coleopterologische Hefte XIV.
Translated from Latin & German:
Oval, dark brown, hardly shiny; head pitted-punctated; with transverse impression between the eyes, slightly inflated on the frons, thorax a little wider in length, somewhat globose, pitted-punctated, the middle line and some small spots smooth; elytra shortly oval, slightly convex, produced towards the apex, laterally carinated, above some longitudinal very wavy lines, uneven, densely punctated, somewhat shiny; prosternum pitted; epipleurae opaque, with scattered punctures, uneven; ventral segments shiny, sparsely punctuated, strigulated; legs dark, minutely brown-haired. - Length 13 mm, width 7.5 mm.
Head small, furrow deeply indented between eyes, frons elevated; (with the exception of this elevation, which appears shiny and is only slightly punctured), densely coarsely pitted. Pronotum slightly spherical,
anteriorly emarginate with slightly forward protruding anterior angles, lateral margins edges bent downwards and strongly curved; posterior angles absent; surface except for a narrow longitudinal line and several small patches, coarsely pitted with converging punctures, slightly indented transversely along the posterior edge. Elytra more than twice as wide as the thorax, very short ovate, with tip slightly pulled down. Slightly convex towards the suture, with strong lateral carinae up to the apical slope, on the elytral disc two indistinct, strongly meandering longitudinal elevated lines, with are connected by small transverse wrinkles, surface uneven and, with the exception of the very narrow suture, quite densely punctured. [...] Epipleurae broad, individually punctured and uneven due to some longitudinal wavy lines. [...] Legs matt, very finely covered with brown bristles.
From Natal.

iNat observation: https://www.inaturalist.org/observations/103306190

הועלה ב-אפריל 16, 2024 01:14 לפנה"צ על ידי traianbertau traianbertau | 0 תגובות | הוספת תגובה

אפריל 15, 2024

Distretus (Distretus) variolosus (Guérin-Méneville, 1845)

Black or brownish. Antennae hairy with white fluffy tips. Elytral surface densely punctured and pitted. Elytra less dilated than in other species, rather parallel-sided.

Original description in:
Guérin-Méneville, F. E. 1845. Description de quelques-uns des Insectes les plus remarquable découverts par M. A. Delegorcue dans les pays des Boschimans, des Ama Zoulous, des Massilicatzi et au Port Natal, pendant les années 1838, 39 , 40, 41, 42, 43 et 44. Revue Zoologique par La Société Cuvierienne VIII
Translated from Latin:
Dark chestnut; thorax rounded, densly punctate; elytra densly punctate or pitted, flattened, with almost straight sides, with strong sharp lateral carina and with the lateral edges slanting below the carina; legs covered with dark yellow scales.
Length 13 mm; width 8 mm.

Type Locality: 'Port Natal' (Durban, South Africa).

Redescription in:
Haag-Rutenberg G. 1871. Beiträge zur Familie der Tenebrioniden (II. Stück). Coleopterologische Hefte VII.
Black or dark brown, opaque, antennae pilose, towards the apex white-silky; head punctured; thorax globose, pitted; elytra flattened, deeply punctate or furrowed, with straight sides, with a strong lateral carina, epipleura sparsely punctate; legs elongated, pitch-black, very thinly gray-bristled. - Length. 13-14 mm; width 7.5-8.5 mm

Description of junior synonym (Moluris pilicornis) in:
Fåhraeus, 1870. Coleoptera Caffrariae, annis 1838–1845 a J. A. Wahlberg collecta. Heteromera descripsit. Öfversigt af Kongliga Vetenskaps-Akademiens Förhandlingar 27.

Distribution: Known from northern and eastern South Africa.

iNat observation:

הועלה ב-אפריל 15, 2024 07:26 אחה"צ על ידי traianbertau traianbertau | 0 תגובות | הוספת תגובה

Amiantus costipennis Kolbe, 1886

Original description in:
Kolbe, H. J. 1886. Neue afrikanische Coleoptera des Berliner zoologischen Museums. Entomologische Nachrichten 11.
Translated from German:
Distinguished by the regular and heavily costate, shiny black and short elytra, the coarse-wrinkled dull black pronotum and the gray-brown tomented legs.
The short elytra have six straight ones each strong costae, which are weakened towards the suture; the spaces between the costae are irregularly and scatteredly punctured. The space between the outer costa and the pleurae is very wide and very faintly scattered punctures. The back of the elytra is highly arched. The prothorax is slightly wider than long, the anterior angles pulled forward, the posterior ones blunt-rounded at an angle, very coarse and almost wrinkled on the upper side and punctured. Labrum narrowed at the back, truncated at the front, the corners rounded, completely smooth on top, unpunctuated, clypeus and forehead with scattered coarse dots, the back of the head with dense and fine punctures.
Body length 16, largest width 11 mm.

Type locality: Berlin mission station Mp'hôme (Mphome), later renamed to Kratzenstein, located in Haenertsburg (Limpopo, South Africa).

Distribution: Probably endemic to the North Eastern portion of the Drakensberg mountain range in the Limpopo Province, south of Tzaneen.

Photos of specimen from Limpopo, collected by Junod from the surronds of Shiluvane on RBINS Virtual Collections

iNat observation: https://www.inaturalist.org/observations/194343229

הועלה ב-אפריל 15, 2024 07:57 לפנה"צ על ידי traianbertau traianbertau | 0 תגובות | הוספת תגובה