Diario del proyecto Insects - Southern Africa (identified for the 1st time on iNat or difficult to identify)

15 de junio de 2024

Ammianus junodi (Distant 1904)

Original description and illustration in:
Distant, W. L. 1904. On South African Tingidae and other heteropterous Rynchota. Transactions of the South African Philosophical Society 4.
https://www.biodiversitylibrary.org/page/36985801#page/459/mode/1up
Umber-brown; head immersed to eyes, which are black and almost touch the anterior margin of the pronotal hood; antennae with the first and second joints umber-brown, remainder mutilated in specimen described; pronotum with the interior of many of the areolets creamy- white, especially on the produced lateral and posterior areas, its disk piceous; elytra with the discoidal and subcostal areas almost uniform umber-brown, the costal and sutural areas creamy-white with the margins of the areolets brown, the first with large medial apical brown spots and some small lateral spots of the same colour; body beneath and legs piceous; head armed with a long semi-erect spine in front of each eye; pronotal hood with an erect discal anterior spine, pronotal lateral areas strongly ampliated on each side, slightly directed upward, their apices angularly truncate, their margins shortly spined, pronotal disk tricarinate; elytra with the discoidal a little wider than the subcostal area, areolets small, dense, with their margins thick and coarse, costal and sutural areas with the areolets larger and with finer margins, lateral margins of the first very distinctly spined.
Long. 41, mm.

https://www.biodiversitylibrary.org/page/36985801#page/451/mode/1up

Illustrated in:
Deckert, J. & Göllner,-Scheiding U. Lace bugs of Namibia (Heteroptera, Tingoidea, Tingidae)
https://www.zobodat.at/pdf/DENISIA_0019_0823-0856.pdf

Key to A. junodi group
https://zenodo.org/records/4955830

iNat observation: https://www.inaturalist.org/observations/222706120

Publicado el 15 de junio de 2024 a las 01:59 PM por traianbertau traianbertau | 0 comentarios | Deja un comentario

11 de junio de 2024

Chirodica chalcoptera Germar 1834

Elytra pitch brown - blueish green metallic, apices reddish brown; length 3,7-4,6 mm

Original description & illustration in:
Germar. 1834. Revue entomologique 2.
https://www.biodiversitylibrary.org/page/12255239#page/334/mode/1up
This species is from the Cape of Good Hope; it is red, slightly punctured above, not hairy. The eyes are black; the elytra are green bluish with a metallic reflection, their edge and their apex are brick red.

https://www.biodiversitylibrary.org/page/12255239#page/335/mode/1up

Key in:
Scherer, G. 1983. Review of the Genus Chirodica Germar. Ent. Arb. Mus. Frey 31/32, 1983 173
https://www.zobodat.at/pdf/Entomologische-Arbeiten-Museum-Frey_31-32_0173-0175.pdf

Ecology:
This genus is strictly associated with Proteaceae.

iNat observation:
https://www.inaturalist.org/observations/221635800

Publicado el 11 de junio de 2024 a las 09:20 AM por traianbertau traianbertau | 1 comentario | Deja un comentario

09 de junio de 2024

Zophosis (Onychosis) gracilipes (Deyrolle 1837)

A dull black, very fast running diurnal species. Antennae without long setae. Tarsal claws unequal. Elytra with three somoothed and raised costae. Body subcordiform, strongly attenuate posteriorly.

Original description & illustration in:
Deyrolle, A. 1867. Monographie de la Tribu des Zophosites. Annales de la Société entomologique de France. Volume: ser.4:t.7 (1867)

https://www.biodiversitylibrary.org/item/101298#page/232/mode/1up
Translated from French:
Large oval, not very shiny black.
Head moderately broad, quite long, covered with fine, tight punctuation, especially on the sides; frons marked with a vague and poorly defined furrow. Epistome less strongly punctuated in females than in males; its suture very weak, but distinct on the sides, none in the middle. Antennae reaching the posterior angles of the pronotum; their articles proportionate as has been said. Mentum and outer side of mandibles rough.
Pronotum a little more twice as wide as long, barely narrower at the base than the elytra, noticeably narrowed forward, rounded on the sides, poorly rounded at the base, which is weakly sinuous near the corners, which are acute; deeply indented anteriorly, quite strongly convex in the middle, quite widely thinned on the sides, with punctuation very fine, spaced, indistinct in the middle, tighter on the sides and near the corners; along the base there is a row of slightly stronger and more pointed points; near the sides they occupy the bottom of a shallow furrow, parallel to the base.
Elytra short, oval, poorly rounded on the sides, their greatest width being towards the middle, slightly attenuated near the end, each rounded a little outside the suture; convex; each elytron with four costae approximately equidistant, besides the suture, which is slightly raised; the sutural very close to the suture and subparallel; the two dorsals meeting more or less distinctly at their ends; the marginal costa low, very close to the edge; elytra completely covered in big tight punctures, more or less confluent on the sides and behind.
Epipleurae covered with punctures not very tight, moderately large, from each of which a black hair emerges. Rough prosternum and mesosternum; metasternum sparsely and not very strongly punctuated; its deep furrow, extended almost to the half; episterna of the prothorax quite strongly wrinkled; those of the mesothorax and metathorax are almost smooth and only show a few fine punctures.
Abdomen with only scattered punctures, quite fine, but well marked; 3° and 4° smooth segments in the middle.
The female differs from the male, in addition to the shape of her abdomen and the less considerable length of her legs, by her more convex elytra, more briefly narrowed near the end, with less projecting ribs.

https://www.biodiversitylibrary.org/item/101298#page/967/mode/1up

Illustrated in:
Koch C. 1955. Monograph of the Tenebrionidae of southern Africa Vol I (Tentyriinae, Molurini Trachynotina: Somaticus Hope). Transvaal Museum Memoir 7
Plate 1, fig 3: https://journals.co.za/doi/pdf/10.10520/AJA0000012_541

Distribution: Sublittoral, on the Namib coast from Porto Alexandre to south of Lüderitz. It can be commonly found on the beaches where it forages along the tide-marks. Often running between plants on wind-blown sand or in the sand under plants, often also at the beach under dead seaweed.

iNat observations:
https://www.inaturalist.org/observations/195373601
https://www.inaturalist.org/observations/11333114
https://www.inaturalist.org/observations/11333109

Publicado el 09 de junio de 2024 a las 11:43 AM por traianbertau traianbertau | 0 comentarios | Deja un comentario

08 de junio de 2024

Crepidogaster bimaculata Boheman 1848

Elytra blackish with a basal triangular band and an apical yellowish-red patch on each side.

Original description & illustration in:
Boheman 1848. Insecta Caffrariae annis 1838-1845 a J.A. Wahlberg collecta.
https://www.biodiversitylibrary.org/item/37989#page/83/mode/1up

Yellow-testaceous, opaque; eyes and mandibles at the tip black; head and prothorax finely punctate; elytra finely, densely granulated, blackish-brown, base and two large round spots towards the apex, yellow-testaceous, slightly furrowed on the back. Length 7 mm width. 4 mm.
https://www.biodiversitylibrary.org/item/37989#page/645/mode/1up

Redescription 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
https://www.biodiversitylibrary.org/page/36877446#page/217/mode/1up
Head, prothorax, palpi, antennae, and legs pale brick-red; elytra fuscous black, finely shagreened, broadly but not deeply striated, with a basal yellowish red triangular band, and on each side a large, ovate, subapical macula of the same colour, nearer to the outer margin than to the suture; epipleurae yellowish; abdomen black above, infuscate underneath, with the central part yellowish red.
Length 7 mm.; width 4 mm

iNat observations:
https://www.inaturalist.org/observations/141455554

Publicado el 08 de junio de 2024 a las 08:54 AM por traianbertau traianbertau | 0 comentarios | Deja un comentario

07 de junio de 2024

Graphipterus calcaratus Obst 1908

Original description in:
Obst, P. 1908. Carabidae, in: Zoologische und anthropologische Ergebnisse einer Forschungsreise im westlichen und zentralen Südafrika, ausgeführt in den Jahren 1903-1905 mit Unterstützung der Kgl. Preussischen Akademie der Wissenschaften zu Berlin von Dr. Leonhard Schultze. Denkschriften der Medicinisch-Naturwissenschaftlichen Gesellschaft zu Jena 13.
https://www.biodiversitylibrary.org/page/37102417#page/109/mode/1up

Similar to frontalis Boh., the sides of the head and prothorax are whitish-banded, the head is longitudinally broadly bare in the middle, very shiny, the pronotum very convex, the elytra covered with scales or pale hairs, the hairy band is broad, sutural, brown, disappearing at the very apex, the edge narrowly whitish-pubescent, legs black, posterior tibiae with very large red calcar, and with red claws.

Type locality: Omaruru river mouth, Namibia

iNat observation: https://www.inaturalist.org/observations/220479535

Publicado el 07 de junio de 2024 a las 06:47 AM por traianbertau traianbertau | 0 comentarios | Deja un comentario

02 de junio de 2024

Prismatocerus plagiatus (Germar, 1838)

Original description (Homoeocerus plagiatus) in:
Germar, C. F. 1838. Hemiptera Heteroptera Promontorii bonae spei nundum descripta, quae collegit C. F. Drege et proponit C. F. Germar. Revue Entomologique (Silbermann) 5:147-148.
https://www.biodiversitylibrary.org/item/82337#page/149/mode/1up
The thorax is muted, greyish-testaceous, the head and thorax above are brown, the antennae are red-variegated, the longitudinal stripes of the elytra are black. [...]

Redescription (Prismatocerus plagiatus) in:
Stål. 1866. Hemiptera Africana 2:66, 67
https://www.biodiversitylibrary.org/item/35344#page/340/mode/1up
Translated from Latin:
Dark-cinnamon, pubescent, underneath paler, brownish-punctate; Abdominal margin pale, thinly
punctuated, blood-red above, with a narrow ribbon on both sides, and with black apical segments; the first and fourth joints of the antennae are dark brown, the second and third are yellow-rusty, with a black tip, and the third tip is distinctly expanded; the hemelytra are yellow-cinnamon, with a dense brown-pointed clavus, corium decorated with an irregular black stripe of leather near the costal margin; membrane dark brown, Hindwings infustcated.
Length 15 - 17 mm, width 4 - 5.5 mm.

Photo of Philonus nigrovittatus Stål, 1855 (synonym).
http://www2.nrm.se/en/het_nrm/n/homoeocerus_nigrovittatus.html

References:
http://coreoidea.speciesfile.org/Common/basic/Taxa.aspx?TaxonNameID=1188882

iNat observations:
https://www.inaturalist.org/observations/190281939
https://www.inaturalist.org/observations/144846640

Publicado el 02 de junio de 2024 a las 01:58 PM por traianbertau traianbertau | 0 comentarios | Deja un comentario

28 de mayo de 2024

Traphera chalybea (Wiedemann 1830)

A Trapherinae fly with dark wing with two bands.
Distinguishing features of the subfamily Trapherinae:

  • both the upper and lower calypters forming a distinct lobe;
  • the katepisternal setae are invariably present;
  • the branches of the antennal arista are long bipectinate;
  • the face is flattened or convex and bulging outwards below the insertion of the antennae and/or extends
    well below the ventral-most point of the gena

  • tergite 5 is about the same length as tergite 3;
  • female tergite 6 is well-developed and exposed;
    The following Afrotropical genera are included in the subfamily: Lule; Piara; Seguyopiara; Traphera

Key to Trapherinae genera in MAD 3:
https://www.researchgate.net/publication/356493903_Chapter_70_Platystomatidae_Singal_flies_pp_1619-1667_In_Kirk-Spriggs_A_and_Sinclair_BJ_eds_Manual_of_Afrotropical_Diptera_Volume_3_Brachycera_Cyclorrhapha_excluding_Calyptratae/download?_tp=eyJjb250ZXh0Ijp7ImZpcnN0UGFnZSI6Il9kaXJlY3QiLCJwYWdlIjoiX2RpcmVjdCJ9fQ

Traphera Loew (Trapherinae) is an endemic monotypic genus, with the single species, T. chalybea Wiedemann, 1840), described from South Africa. T. chalybea is dark brown, with distinctively slanted fasciae on the wing membrane. The body is metallic, contrasting with the orange head; there are six scutellar marginal setae and wing crossvein bm–m is half as long as, or shorter than vein Cu and crossvein dm–m is at an acute angle to vein M1.

Original description in:
Wiedemann. 1830. Aussereuropäische Zweiflügelige Insekten 2. Page 464
https://www.google.de/books/edition/Aussereurop%C3%A4ische_Zweifl%C3%BCgelige_Insekt/hlBO_JTGO3oC?hl=de&gbpv=1&dq=ortalis%20chalybea&pg=PA464&printsec=frontcover

Redescription in (Ortalia chalybea):
Hendel, F. 1914. Die Arten der Platystominen. Abhandlungen der Kaiserlich-Königlichen Zoologisch-botanischen Gesellschaft in Wien 8. Page 19
https://www.zobodat.at/pdf/AZBG_8_1_0001-0410.pdf

Illustrations in:
Hendel, F. 1914. Diptera Fam. Muscaridae Subfam. Platystominae. Genera insectorum 157
Plate 3, figures 50, 51, 52 https://www.biodiversitylibrary.org/item/105321#page/199/mode/1up

iNat observation: https://www.inaturalist.org/observations/218652727

Publicado el 28 de mayo de 2024 a las 11:14 AM por traianbertau traianbertau | 0 comentarios | Deja un comentario

26 de mayo de 2024

Stenodesia globulum globulum Haag-Rutenberg 1875

Black, short and convex body shape. Middle of pronotal base on each side of midline with a transverse tomentose patches. Elytra with two costae and intercostae with scattered large tubercles. Reflected part of elytra with fine scattered punctures. Inner elytral costa not meeting or closely approaching suture posteriorly, straight.

Distribution: Namibia (northern Damaraland and the southern parts of the Kaokoveld)

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=51

Diagnosis, distribution map and key in:
Penrith. 1986. https://www.researchgate.net/publication/292225526_Relationships_in_the_tribe_Adesmiini_Coleoptera_Tenebrionidae_and_a_revision_of_the_genus_Stenodesia_Reitter

Illustrated in:
Koch, C. 1955. Monograph of the Tenebrionidae of southern Africa. I. (Tentyriinae, Molurini - Trachynotina: Somaticus Hope). Transuaal Museum Memoir No. 7
Plate 1, figure 11: https://journals.co.za/doi/pdf/10.10520/AJA0000012_541

Illustrated in:
Koch, C. 1952. . The Tenebrionidae of southern Africa. XIL Supplementary notes to preliminary articles
nos I, III, V, and VII. Annals of the Transvaal Museum. Volume 22, Issue 1
Plate 19, figure 2: https://journals.co.za/doi/epdf/10.10520/AJA00411752_367

iNat observation: https://www.inaturalist.org/observations/154572816

Publicado el 26 de mayo de 2024 a las 10:19 AM por traianbertau traianbertau | 0 comentarios | Deja un comentario

23 de mayo de 2024

Chnootriba capensis in the Lund collection

Publicado el 23 de mayo de 2024 a las 01:34 PM por traianbertau traianbertau | 6 comentarios | Deja un comentario

Brachycerus intermedius Péringuey, 1885

Original description in:
Péringuey, L. 1885. First contribution to the South-African Coleopterous Fauna. Transactions of the South African Philosophical Society.
https://zenodo.org/record/1447463/files/article.pdf

Tranlsated from Latin:
Ovate, black, with an impressed rostrum, with raised fringes; prothorax on both sides spinous, furnished with two raised dorsal ridges encompassing the carinula; elytra ovate, convex, warty, decorated with serially with rusty-scaly spots placed in rows.

Long. 19-23 mm. lat. 10-12 mm.
The rostrum is long, impressed in the middle; the lateral margins are raised and separated from the head by a deep arcuated impression.
The head is small, and has a longitudinal impression on the vertex, and is depressed on either side. The eyes are perpendicular, depressed, and have a thin superciliary ridge.
The prothorax is narrowed in front and behind, the sides are produced in an acute spine; it is strongly tuberculated above, and in the middle there is a deep cavity formed by two raised semi-tuberculated ridges interrupted in the middle, curved in the anterior and straight in the posterior part and with a small straight ridge in the middle. On each side of the disc, between the lateral spine and the median ridge, there is a conspicuous, elongated, squamose, ferruginous patch.
The elytra are ovate, very convex, slightly declivous at the apex, more elongated in the female than in the male. The sides are deeply punctured and the upper surface is dotted with small round granulelike tubercles irregularly disposed but forming however, two distinct lines on each elytron. The suture is dotted on either side with semiconspicuous tubercles. Squamose ferruginous dots are disposed in series more regular on the disc than on the sides.
The underside is black, with the sides of the abdominal segments, the pectus, coxae and the underside of the tibiae coated with cinnabarred scales.

Redescription and illustration in:
Haaf, E. 1957. Revision der äthiopischen und madagassischen Arten der Gattung Brachyeerus Ol. (Col. Cure.) Entomologische Arbeiten aus dem Museum G. Frey Tutzing bei München 8.
https://www.biodiversitylibrary.org/item/173065#page/155/mode/1up

Distribution: South Africa (Mpumalanga, KZN), Zimbabwe, Zambia, Tanzania, DR Congo, Congo.

iNat observation: https://www.inaturalist.org/observations/205069607

Publicado el 23 de mayo de 2024 a las 11:01 AM por traianbertau traianbertau | 0 comentarios | Deja un comentario

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