Colletes longitarsus, Zabel & Kuhlmann, 2023

Zabel, Tina & Kuhlmann, Michael, 2023, Taxonomic revision of the southern African Colletes fasciatus species group (Hymenoptera: Colletidae), European Journal of Taxonomy 899, pp. 1-96 : 62-64

Colletes longitarsus sp. nov.

urn:lsid:zoobank.org:act:13DBB574-35EF-4A44-BF91-03D0F5E6617D

Figs 46 , 53

Diagnosis

The male is best identified by the unique shape of S7 ( Fig. 46G ) and the 2 nd hind tarsomere, which is narrow and very elongate ( Fig. 46F ), as otherwise only in C. cyanonitidus ( Fig. 17F ).

Etymology

The species is named for its exceptionally elongate second hind tarsomere.

Material examined

Holotype SOUTH AFRICA – Western Cape Province • ♂; Clanwilliam, Ramskop ; 32°10′ S, 18°52′ E; 9 Jul. 1984; V.B. Whitehead leg.; SAMC.

Description

Female

Unknown.

Male

BODY LENGH. 9 mm.

HEAD. Integument black, antenna brownish ventrally. Face with grayish white to white hairs ( Fig. 46B ). Clypeus with very dense, small punctures (<0.2 pd). Malar area long, about as long as width of mandibular base. Facial fovea narrow, maximum width about ½ antennal diameter.

MESOSOMA. Integument black, legs reddish brown and tarsi yellowish brown ( Fig. 46A ). Scutum with long, grayish white to yellowish white hairs ( Fig. 46C ). Mesosomal sides and legs grayish white to white. Disc of scutum medium sized, scattered punctures (0.5–1 pd), integument glabrous, surrounded by dense (<0.2 pd) punctation. Scutellum and metanotum with long, yellowish white hairs, on scutellum intermixed with brown hairs. Upper sloping part of propodeal triangle with short, longitudinal carinae anteriorly, scabriculous posteriorly, vertical part distinctly shagreened and shiny. Hind basitarsus not modified. 2 nd hind tarsomere very elongated ( Fig. 46F ).

METASOMA. Integument black, terga narrowly translucent posteriorly. T1–T4 with slightly bluish shine. T1 covered with long, erect grayish white hairs ( Fig. 46D ). Disc of T2 with shorter, erect grayish white hairs. Discs of T3–T6 with erect black hairs. T1–T5 with white, narrow posterior tergal hair bands ( Fig. 46E ). Discs of T1 and T2 with relatively dense (0.5 pd) granulation that is becoming slightly finer and indistinct on posterior tergal depression, interspaces glabrous. S1–S5 with white hair fringes posteriorly, laterally minimal longer than medially. Disc of S2 with long, erect white hairs, S3–S5 with scattered, short white hairs, laterally longer. S7 ( Fig. 46G ) and gonostylus ( Fig. 46H ) as illustrated.

Distribution

Only record is from the type locality in the Cedarberg Mountains ( Fig. 53 ).

Phenology

Only recorded in July.

Figures

Fig. 46. Colletes longitarsus sp. nov.,♂,holotype (SAMC). A. Habitus, lateral view.B. Head.C. Scutum, dorsal view. D. Metasomal terga 1 and 2, dorsal view. E. Metasoma, dorsal view. F. Hind basitarsus, lateral view. G. Metasomal sternum 7, dorsal view. H. Gonostylus, lateral view.

Fig. 53. Distribution of C. longitarsus sp. nov., C. nieuwoudtvillei Kuhlmann, 2007, C. obscurus Friese, 1925, C. peerboomi sp. nov., C. richtersveldensis sp. nov. and C. ruschia sp. nov.

Fig. 17. Colletes cyanonitidus Kuhlmann, 2007, ♂. A. Habitus, lateral view. B. Head. C. Scutum, dorsal view. D. Metasomal terga 1 and 2, dorsal view. E. Metasoma, dorsal view. F. Hind basitarsus, lateral view. G. Metasomal sternum 7, dorsal view. H. Gonostylus, lateral view.