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

2024年02月27日

Compseuta capensis (Walker 1873)

Pronotum without lateral keels with rounded lateral angles, with fine punctuation, light brown in colour, narrowly dark on the sides, lateral edge of the pronotum narrowly yellowish with a row of indistinct tiny areolae, costal edge of the hemelytra initially with very small areolae, slightly larger in the last third. Length 2.9-3.0 mm.

Original description in:
Walker, F. 1873. Catalogue of the specimens of Heteropterous Hemiptera in the Collection of the British Museum. Part VII
https://www.biodiversitylibrary.org/item/206325#page/16/mode/1up

Key, redescription & illustration (figure 3) in:
Göllner-Scheiding, U. 2009. Revision der afrotropischen Arten der Gattung Compseuta Stål 1873. Beiträge zur Entomologie, vol. 59, no. 1
https://www.contributions-to-entomology.org/article/view/1745/1744

Distribution: South Africa (Kwazulu-Natal, Maputaland).

Host plant: Dalbergia armata

iNat observation: https://www.inaturalist.org/observations/175083436

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Compseuta holana Drake 1948

Lateral edge of the pronotum narrowly yellow with fine punctuation, pronotum unicolor dark shiny with light tip and three yellow longitudinal carinae, hemelytra yellowish, coarsely punctuated, costal edge with a single row of initially small, then larger areolae from about the middle. Length 3.2 mm.

Original description in:
Drake, C. J. 1948. The genus Compseuta STÅL (Hemiptera, Tingidae). Proceedings of the Entomological Society of Washington 50, no 8
https://www.biodiversitylibrary.org/item/81132#page/509/mode/1up

Key, redescription & illustration (figure 6) in:
Göllner-Scheiding, U. 2009. Revision der afrotropischen Arten der Gattung Compseuta Stål 1873. Beiträge zur Entomologie, vol. 59, no. 1
https://www.contributions-to-entomology.org/article/view/1745/1744

Distribution Ethiopia, Botswana, DR Congo, Namibia, South Africa, Tanzania, Uganda and Zambia.

iNat observation:
https://www.inaturalist.org/observations/150037377

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Chrysolina (Naluhia) acervata Bechyně 1948

Elytra red, covered with round dark spots, irregularly arranged, often confluent and asymmetrical. Elytral puncture rows mostly irregular (partly arranged in indistinct rows), with fine barly visible punctures among dense, irregular punctures in intervals. Dorsum rufous with black spots. Length 7.5 - 8.3 mm.

Type locality: 'Bas Congo'.
Recorded from Namibia (Zambezi Region)

Original description in:
Bechyně, J. 1948. Coléoptères d'Angola. Phytophaga, Chrysomelidae et Halticidae. Revue Suisse de Zoologie 55 (4, no. 29)
https://www.biodiversitylibrary.org/page/43795686#page/580/mode/1up

Key (page 452) and figure 18 in:
Bieńkowski, A. (2021) Book preview/manuscript. Chrysolina of the World. Taxonomic Review. 5b. Review Chrysolina-Pleurosticha.
https://www.zin.ru/animalia/coleoptera/pdf/5b.Review_Chrysolina-Pleurosticha.pdf

iNat observation:
https://www.inaturalist.org/observations/191917674

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2024年02月26日

Chiliarchum bertolonii (Guérin-Méneville, 1844)

A distinctly costate Chiliarchum species in which, like C. freyi and C. arnoldi, the two basal impressions of the pronotum are located in the posterior angles.

Description in:
Haag-Rutenberg G. 1871. Beiträge zur Familie der Tenebrioniden (II. Stück). Coleopterologische Hefte 7
https://www.biodiversitylibrary.org/item/81206#page/367/mode/1up
Translated from Latin:
Very large, elongated; thorax cordiform, near the posterior corner impressed, punctate, margin and impression white-tomentose; elytra elongate, with three distict costae, at the margin, towards apex widened, intervalls sometimes whitish-tomentose and very fine scabrous; slightly punctate below, mesosternal process, thorax ventrally and tibiae covered with a rusty-red tomentum.
Male: Slender, thorax more cordiform, abdominal segments 1-3 with large oblong reddish-brown spot. - Length 44-50 mm, width 16-17 mm.
Female: Broader, abdominal segments immaculate. - Length. 42-52 mm, witdh 17-20 mm.

Male illustrated in:
Guérin-Méneville, F. E. 1844. Insectes Magasin de Zoologie, D’ Anatomie Comparee et de Paleontologie, Recueil

iNat observation:
https://www.inaturalist.org/observations/14373093

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2024年02月24日

Glipidiomorpha obsoleta Franciscolo 1955

Original description with illustration in:
Franciscolo, M. E. 1955. Mordellidae and Scraptiidae in the Collections of the Durban Museum (XXIX. Contribution to the Knowledge of Mordellidae and Scraptiidae). Part I. Durban Museum Novitates, Vol. IV. Part XII
https://journals.co.za/doi/pdf/10.10520/AJA0012723X_1851

Hind tibiae with a distinct dorso-lateral ridge, hairy eyes, elytra with file-like sculpture. The upper surface is prevailingly covered by grey pubescent markings, as shown in the figure; the pronotum bears three small areas covered by black hairs, one elongate at middle, and one at each side of it; maxillary palpi ferrugineous; front and middle tarsi a little clearer; anterior femora rusty-reddish. Pubescent markings of elytra of moderate size, leaving free large black spots (see figure); the postmedian pubescent band is normally sinuous on each elytron; pygidium covered with whitish pubescence, leaving a small subtriangular black spot at base.

Type locality: Chirinda Forest, Zimbabwe

iNat observation: https://www.inaturalist.org/observations/111636146

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Sphaeromorda natalensis Franciscolo 1950

Original description in:
Franciscolo, M. E. 1950. Ermischiella papuana n. gen. n. sp. di Mordellide della Nuova Guinea e diagnosi preliminari di tre nuovi generi africani (16 Contributo alla conoscenza dei Mordellidae).

Redescription with illustrations in:
Franciscolo, M. E. 1956. Mordellidae and Scraptiidae in the Collections of the Durban Museum (XXIX. Contribution to the Knowledge of Mordellidae and Scraptiidae). Part II Durban Museum Novitates, Vol. IV. Part XIV
https://journals.co.za/doi/pdf/10.10520/AJA0012723X_1307

Body shape extremely wide, short and convex. Colour black; the black surface of the body, mainly head and thorax, has a bluish violaceous shine. Ground pubescence dark, with violaceous or reddish violaceous shine on head and thorax, but with no shine at all on the elytra and undersurfaces. Scutellum covered by dense, long, shiny golden white pubescence, with dense file-like sculpture. Elytra (figure) extremely convex and wide, file-like punctation, very regularly and separately rounded at apex. Ground pubescence black, with no shine at all, with markings of whitish hairs distributed as indicated in the figure.

Type locality: Umhlanga, Durban (KZN, South Africa)

iNat observation: https://www.inaturalist.org/observations/139509787

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Calognathus chevrolati chevrolati Guérin-Méneville 1836

Calognathus chevrolati is a black tenebrionid with pale scale-like setae covering some areas. The pronotum is broader than long and the head is nearly as large as the pronotum. The tarsi are compressed laterally and have long setae forming sand-shoes for digging. Males have the long, slender, anteriorly projecting mandibles. There are 4 subspecies described.

Calognathus chevrolati chevrolati:
Mandibles of males strong and angularly arcuate, with strong and long basal crest. Pronotum more than twice as wide as long, basal margin doubly arcuate. Elytra almost as wide as long, cordiform, strongly deplanate. The entire dorsum of the head with the exception of the clypeal margin, as well as entire disc of pronotum, densely covered with scale-like hairs; pubescence bicoloured: whitish behind clypeal margin and lateral parts of pronotum, brown on vertex and median part of pronotum, A broad lateral band and broad sutural margin of elytra with similar pubescence to that of head and pronotum, in whitish to light brown colour. A narrow, almost rectilinear V-shaped area of each elytron either completely bare (males), or brown pubescent and only apically bare and black (females).

Distribution: north and south of the Orange river.

Description and illustration in:
Koch, C. 1950. The Tenebrionidae of Southern Africa. I. First account of the Tenebrionidae collected on the University of California-Transvaal Museum Expedition, 1948. Annals of the Transvaal Museum, 21
https://journals.co.za/doi/pdf/10.10520/AJA00411752_442
https://journals.co.za/doi/pdf/10.10520/AJA00411752_1051

iNat observation: https://www.inaturalist.org/observations/188002707

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2024年02月23日

Asthenochirus plicatulus Fairmaire 1884

Subovate, very convex, black, covered with pale and yellow setae. Pronotum two and a half times as wide as it is long. Head anteriorly with transverse furrow. Elytra coarsely punctate and striped, the stripes with transverse folds, epipleura punctate.

Original description in:
Fairmaire, L. 1884. DESCRIPTION OF NEW SPECIES OF SOUTH-AFRICAN TENEBRIONIDÆ. Transactions of the South African Philosophical Society, 4(2), 197–199. doi:10.1080/21560382.1884.9526207
https://sci-hub.ee/10.1080/21560382.1884.9526207

Distrubution: South Africa, Eswatini; Zimbabwe; Namibia.

iNat observations: https://www.inaturalist.org/taxa/651670-Asthenochirus-plicatulus/browse_photos

由使用者 traianbertau traianbertau2024年02月23日 17:30 所貼文 | 0 評論 | 留下評論

2024年02月22日

Renatiella scrobipennis (Haag-Rutenberg 1875)

A black nocturnal or crepuscular Kalahari beetle with numerous shallow grooves on thorax and elytra; found under shrubs and trees in arid plains. (Penrith, M. L. 1979. Revision of the western southern African Adesmiini (Coleoptera: Tenebrionidae). Cimbebasia, 5(1))

Oblong-oval, black, opaque; the head is biimpressed between the eyes, covered with large punctuations converging in part longitudinally; thorax less transverse, only marginate at the sides in front, evenly rounded, densely scrobiculate-punctate, and some smooth spots on the back; elytra shortly oval, almost immarginate, densely scrobiculate-foveolate; legs a little elongated.

Illustrated in:
Koch C. 1955. Monograph of the Tenebrionidae of southern Africa Vol I (Tentyriinae, Molurini Trachynotina: Somaticus Hope). Transvaal Museum Memoir 7
https://journals.co.za/doi/pdf/10.10520/AJA0000012_541

Original description in:
Haag-Rutenberg, G.J. 1875. Beiträge zur näheren Kenntniss einiger Gruppen aus der Familie der Tenebrioniden. Deutsche Entomologische Zeitschrift 19(7): 1-56
https://www.digitale-sammlungen.de/view/bsb11323431?page=491

iNat observation: https://www.inaturalist.org/observations/136112704

由使用者 traianbertau traianbertau2024年02月22日 14:56 所貼文 | 0 評論 | 留下評論

Histrionotus omercooperi Koch 1955

Genus Histrionotus: Elytra with two rows of long sharp spines. Two species described: Histrionotus lightfooti (Peringuey, 1892) from Porth Nolloth, Northern Cape, South Africa and Histrionotus omercooperi Koch 1955 from Aus, Namibia.

Histrionotus omercooperi, description in:
Koch C. (1955) Monograph of the Tenebrionidae of southern Africa Vol I (Tentyriinae, MoluriniTrachynotina: Somaticus Hope). Transvaal Museum Memoir 7, page 43.
https://journals.co.za/doi/pdf/10.10520/AJA0000012_545
Epipleural carina of elytra with long (shorter spines in H. lightfooti) and sharply pointed spines (the epipleural margination simple, with the spines inserted on the carina itself); primary costa with identical long spines.

iNat observation: https://www.inaturalist.org/observations/52366184

由使用者 traianbertau traianbertau2024年02月22日 11:09 所貼文 | 0 評論 | 留下評論

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