Cyphanthidium intermedium Pasteels, 1969

Eardley, Connal & Griswold, Terry, 2018, Taxonomic revision of Cyphanthidium Pasteels (Hymenoptera: Apoidea: Megachilidae: Megachilinae: Anthidiini), an endemic Afrotropical bee genus, Zootaxa 4450 (1) : -

Cyphanthidium intermedium Pasteels

( Figs 1 –4)

Cyphanthidium intermedium Pasteels, 1969: 57 , 128–131; male holotype ( SAMC, not examined) South Africa.

Type material was not located in SAMC and was therefore not examined. This species was identified from the original description.

Diagnosis. Both sexes differ from other Cyphanthidium in the posterior margin of the scutellum being lamellate sublaterally and extends laterally behind the axillae ( Figs 1a , 2a ); the forecoxa has angled lamella projecting ventrally; the omaulus is carinate dorsally, and the dorsal clypeus and the supraclypeus are scarcely raised above the paraocular areas (eyes about four times as wide as clypeus in lateral view). In addition, the male T6 lacks apicolateral spines ( Fig. 2d ) and T7 has broad, low lateral lobes ( Fig. 2d ). Cyphanthidium intermedium differs from the other three species of Cyphanthidium most noticeably in the shape of the posterolateral lobes on the male T7.

Description. FEMALE. Colour. Vestiture mostly white, yellow under tarsi. Integument black with yellow or pale orange maculation on: ventral clypeus, lateral paraocular area, mandible (except distal margin); preoccipital region of vertex, upper gena, pronotal lobe, lateral axilla, posterior scutellum (posterior margin translucent pale yellow), most T6 (distal margin black); sometimes upper mesepisternum, medioanterior tegula, legs, and long subapical cross-bands on T1–T6 (distal margins translucent pale yellow).

Lengths. Head 2.3 mm; scutum 2.0 mm; forewing 6.3 mm.

Structure. Vertex evenly convex (anterior view); clypeus shiny between punctures, ventral edge irregularly crenulate, without distinct hairy tufts between scallops; clypeus weakly protuberant (lateral view, eye about four times clypeus width); pronotal lobe distinctly lamellate anteriorly; omaulus carinate dorsally; forecoxa with angled lamella projecting ventrally; posterior (inner) hind tibial spur mostly straight, curved distally, not enlarged ( Fig. 1d ).

MALE. Colour. Vestiture white. Integument black with yellow or pale orange maculation on: clypeus, lower paraocular area, lateral upper paraocular area, mandible (except distal margin); preoccipital region vertex, gena, pronotal lobe, most axilla, posterior region scutellum (posterior margin translucent pale yellow), entire T5–T7; sometimes upper mesepisternum, medioanterior tegula (sometimes tegula with yellow circle), legs, long subapical cross-bands on T1–T4 (distal margins translucent pale yellow).

Lengths. Head 2.5 mm; scutum 1.9 mm; forewing 6.5 mm.

Structure. Vertex evenly convex (anterior view); clypeus shiny between punctures, ventral edge crenulate; clypeus weakly protuberant (lateral view eye about four times clypeus width); mandible bidentate, inner region widely spatulate; pronotal lobe distinctly lamellate anteriorly; omaulus carinate dorsally; forecoxa with angled lamella projecting ventrally; posterior (inner) hind tibial spurs slender, strongly curved distally ( Fig. 2e ); T6 with inconspicuous, obtuse median spine, without lateral spine ( Fig. 5d ); T7 with short, broad lateral lobe, much wider than shallow notch separating it from median spine, lateral lobe much shorter than median spine ( Fig. 5d ); S5–S8 and genital capsule as illustrated ( Fig. 3a–e ).

Distribution. Cyphanthidium intermedium occurs in Namibia and the Northern Cape Province, close to the southern Namibian border (Fig. 4). These areas are mostly arid.

Floral associations. Indigofera acanthoclada , Indigofera heterotricha , Indigofera sp. ( Fabaceae ), Cleome sp. ( Capparaceae ), Justicia platysepala (Acanthaceae) , Crotalaria sp. ( Fabaceae ).

Material examined. Namibia. Khorixaz, Bethamis, 2014AD, 4/iii/1979, V.B. Whitehead (1♂, SAMC); 30 km W Usakos, -21.9833, 15.3167, 2002/iv/25, F.W. & S.K. Gess, on Indigofera heterotricha (1♂, AMGC: 14528); Uis to Omaruru, -21.2333, 15.0000, 2004/iii/14, F.W. & S.K. Gess, S.K., on Cleome sp. (1♀, AMGC: 14524); WNW Omatjete, -20.9500, 15.2333, 2004/iii/15, F.W. & S.K. Gess, on Indigofera sp. (1♀ 2♂, AMGC: 14525, 14526, 14527); 30 km W Usakos, Khorixas near Bergsig, -20.4166, 14.2833, 2002/iv/10, F.W. & S.K. Gess (1♀, AMGC: 14529); Near Two Palms, Uniab River, -19.8833, 13.9000, 2004/iii/28, F.W. & S.K. Gess, on Justicia platysepala (1♂, AMGC: 57966); 6 km S Rosh Pinah, -28.0666, 16.8500, 2000/x/15, F.W. & S.K. Gess, on Indigofera acanthoclada (1♂, AMGC: 2486); 156 km from Khorixas between Uis and Henties Bay, -21.4000, 14.7666, 1998/ iv/9, F.W. & S.K. Gess, on Indigofera heterotricha (1♂, AMGC: 2485); 24 km from Khorixas road to Palm, -20.45, 14.801997/ iv/1, F.W. & S.K. Gess, on Crotalaria sp. (1♀ 2♂, AMGC: 2482, 2483, 2484).

), C. whiteheadi (+)

Figures

FIGURE 1. Cyphanthidium intermedium Pasteels, female. a. Habitus, dorsal. b. Habitus, lateral. c. Face. d. Hind tibial spurs

FIGURE 2. Cyphanthidium intermedium Pasteels, male. a. Habitus, dorsal. b. Habitus, lateral. c. Face. d. T6–T7. e. Hind tibial spurs

FIGURE 3. Cyphanthidium intermedium Pasteels, male. a. Genital capsule. b. S8. c. S7. d. S6 e. S5

FIGURE 5. Cyphanthidium sheppardi (Mavromoustakis), male. a. Habitus, dorsal. b. Habitus, lateral. c. Face. d. T6–T7. e. Hind tibial spurs.