Colletes carolinae, 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 : 13-21

Colletes carolinae sp. nov.

urn:lsid:zoobank.org:act:077B6CAC-A291-4ADF-9880-4FBEEAF61943

Figs 12–14

Diagnosis

The female can be separated from that of all other species with a normal scopa by the combination of the following characters: apical hair band of T2 about ¼ width of disc ( Fig. 12D–E ), malar area narrow (⅓ width of mandibular base), facial fovea slightly broadened (about 1–1.2 × width of antennal flagellum), T6 narrowly rounded and disc of T1 medio-anteriorly without numerous conspicuously short hairs interspersed ( Fig. 12D–E ). The male can be most easily identified by the unique shape of S7 ( Fig. 13G ).

Etymology

The species is dedicated to Dr Carolin Mayer, University of Namur, Belgium. She extensively collected bees in Namaqualand for pollination research and greatly facilitated the exploration of the bee fauna in this area.

Material examined

Holotype SOUTH AFRICA – Northern Cape Province • ♂; Keiski Mts , 5 km S Farm Nooiensrivier, burned area ; 31°45′47″ S, 19°50′17″ E; alt. 1275 m; 18 May 2013; M. Kuhlmann leg.; SAMC.

Paratypes SOUTH AFRICA – Northern Cape Province • 1 ♀; Remhoogte , plain, 49/26; 30°14′07″ S, 18°09′56″ E; 16 Aug. 2003; C. Mayer leg.; yellow trap; CMK • 1 ♀; Remhoogte , plain, 390/11; 30°14′04″ S, 18°09′53″ E; 31 Aug. 2003; C. Mayer leg.; yellow trap; CMK • 1 ♂; Leliefontein , slope; 30°13′58″ S, 18°09′52″ E; 7 Sep. 2003; C. Mayer leg.; yellow trap; CMK • 1 ♀; Keiski Mts , 5 km S Farm Nooiensrivier, dolerite hill; 31°45′54″ S, 19°50′17″ E; alt. 1270 m; 29 Aug. 2010; M. Kuhlmann; CMK • 1 ♀; 9 km N Calvinia, Plateau Hantam Mts , near antenna; 31°22′29″ S, 19°47′03″ E; alt. 1570 m; 7 Sep. 2010; M. Kuhlmann leg.; CMK • 1 ♀, 1 ♂; same collection data as for preceding; 30 Aug. 2011; M. Kuhlmann leg.; CMK • 3 ♀♀, 9 ♂♂; same collection data as for preceding; 7 Jun. 2013; CMK • 4 ♀♀; 20 km W Sutherland, Farm Kanolfontein , road side; 32°24′43″ S, 20°27′28″ E; alt. 1385 m; 7 Sep. 2012; M. Kuhlmann leg.; CMK • 1 ♀, 1 ♂; Keiski Mts , 5 km S Farm Nooiensrivier, burned area; 31°45′47″ S, 19°50′17″ E; alt. 1275 m; 18 May 2013; M. Kuhlmann leg.; CMK • 1 ♀; Nieuwoudtville, Flower Reserve East; 31°21′56″ S, 19°08′52″ E; alt. 735 m; 6 Jun. 2013; M. Kuhlmann leg.; CMK • 1 ♀; Keiski Mts , 3 km E Farm M'Vera, shale; 31°45′29″ S, 19°54′13″ E; alt. 1190 m; 15 Sep. 2016; M. Kuhlmann leg.; CMK • 1 ♀; same collection data as for preceding; 19 Aug. 2017; CMK .

Description

Female

BODY LENGTH. 11–12 mm.

HEAD. Integument black, antenna brown ventrally. Face yellowish gray, with longer dark brown hairs intermixed, along inner eye margins and on vertex with blackish hairs interspersed ( Fig. 12B ). Clypeus with fine, dense punctures (0.2 pd), punctures slightly elongate; interspaces glabrous ( Fig. 12B ). Malar area narrow, length about ⅓ width of mandibular base. Facial fovea relatively broad, maximum width about 1–1.2 × antennal diameter.

MESOSOMA. Integument black, tarsi often brownish ( Fig. 12A ). Scutum with long grayish to yellowish white hairs, intermixed with longer dark brown hairs ( Fig. 12C ). Mesosomal sides and legs grayish to yellowish hairs, mesosomal sides intermixed with dark brown hairs on mesepisternum, tibiae and tarsi with some brown hairs interspersed. Disc of scutum without or with scattered (1–2 pd) fine punctures, integument smooth and shiny, surrounded by dense (<0.5 pd) punctation. Scutellum and metanotum with long yellowish brown hairs, scutellum intermixed with slightly longer dark brown hairs. Upper sloping part of propodeal triangle scabriculous. Vertical part superficially shagreened and shiny, anteriorly with few indistinct more or less transverse carinae. Scopa dark brown dorsally, dark yellowish ventrally ( Fig. 12F ). Mid femora basally with edge and stout ridge ventrally with brush of hairs.

METASOMA. Integument black, terga narrowly translucent posteriorly. T1–T3 with slight bluish shine. T1 densely covered with long, erect yellowish white hairs ( Fig. 12D ). Disc of T2 with shorter, erect yellowish white hairs. Discs of T3–T5 with successively longer, erect blackish hairs. T2–T5 with broad white posterior tergal hair bands, narrower on T1 ( Fig. 12E ). Disc of T1 with shallow, fine and relatively dense punctures (1–2 pd), punctures becoming slightly finer and less distinct towards posterior tergal depression. Disc of T2 with very fine and dense punctation (0.5–1 pd); glabrous between punctures. S2–S5 with long, yellowish hair fringes. Discs of sterna sparsely covered with shorter yellowish hairs.

Male

BODY LENGTH. 11–12 mm

HEAD. Integument black, antenna dark brown ventrally. Face yellowish white to white hairs, intermixed with black hairs on vertex, on supraclypeal area and along inner eye margins and with brown hairs between antennae ( Fig. 13B ). Clypeus with very dense, small punctures (<0.2 pd). Malar area narrow, length about ½ width of mandibular base. Facial fovea narrow, maximum width about antennal diameter.

MESOSOMA. Integument black, except tarsi often reddish brown ( Fig. 13A ). Scutum with long yellowish white hairs, intermixed with numerous black hairs ( Fig. 13C ). Mesosomal sides and legs yellowish white. Mesosomal sides intermixed with some brown hairs. Disc of scutum with medium-sized, scattered punctures (0.5–1 pd), integument glabrous, surrounded by dense punctation (<0.2 pd) ( Fig. 13C ). Scutellum and metanotum with long, yellowish brown hairs, scutellum intermixed with black hairs. Upper sloping part of propodeal triangle with short, longitudinal carinae anteriorly, scabriculous posteriorly. Vertical part shagreened and shiny without or with some short, more or less transverse carinae anteriorly. Hind basitarsus broadened apically, with prominent long reddish bristles on dorso-apical edge ( Fig. 13F ). Mid femora with right-angled edge on basal end.

METASOMA. Integument black, terga narrowly translucent. T1–T3 with slight bluish shine. T1 densely covered with long, erect yellowish brown hairs ( Fig. 13D ). Disc of T2 with shorter, erect yellowish brown hairs intermixed with some dark brown hairs posteriorly. Discs of T3–T6 with long erect, blackish hairs. T1–T5 with moderately broad white tergal hair bands posteriorly, T1 slightly narrower medially ( Fig. 13E ). Discs of T1 and T2 with dense punctures (0.5–1 pd), punctation becoming finer on posterior tergal depression, integument between punctation glabrous ( Fig. 13D ). S1–S5 with yellowish white hair fringes posteriorly, laterally longer. Discs of sterna covered with yellowish white hairs. S6 with 2 brushes of bristles laterally.

Distribution

Found in mountainous regions of the Kamiesberg, Hantam, Keiskie and Roggeveld Mountains as well as the Bokkeveld ( Fig. 14 ).

Phenology

Recorded from May to September.

Figures

Fig. 12. Colletes carolinae sp. nov., ♀, paratype (CMK). A. Habitus, lateral view. B. Head. C. Scutum, dorsal view. D. Metasomal terga 1 and 2, dorsal view. E. Metasoma, dorsal view. F. Hind tibia, lateral view.

Fig. 13. Colletes carolinae sp. nov., ♂, paratype (CMK). 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. 14. Distribution of C. abnormis Kuhlmann, 2007, C. albohirtus Cockerell, 1946, C. ascopalis sp. nov., C. aureocintus Cockerell, 1946, C. cardiurus Cockerell, 1946 and C. carolinae sp. nov.