Scrapter eremanthedon Davies, 2005

Davies, G. B. P., Eardley, C. D. & Brothers, D. J., 2005, Eight new species of Scrapter (Hymenoptera: Apoidea: Colletidae), with descriptions of S. albifumus and S. amplispinatus females and a major range extension of the genus, African Invertebrates 46, pp. 141-141 : 163-164

Scrapter eremanthedon Davies , sp. n.

Figs 23–26

Etymology: Gr. eremia (desert, wilderness); Gr. anthedon (bee).

Holotype ơ: SOUTH AFRICA: Northern Cape: Nieuwoudtville, Farm Glen Lyon (31°24'03"S: 19°08'34"E), 700 m, 27.viii.2003, M. Kuhlmann (to be deposited in SANC) . Paratypes: 2 ^ collected in Nieuwoudtville area between 23.viii.2003 and 27.viii.2003 ( MKPC) .

Description:

Male.

Measurements (n = 1): head length 1.8 mm, head width 2.2 mm, lower interocular distance 1.4 mm, upper interocular distance 1.4 mm, interantennal distance 0.4 mm, antennocular distance 0.4 mm, length of clypeus 0.4 mm, length of eye 1.3 mm, width of eye (lateral view) 0.7 mm, width of gena (lateral view) 0.4 mm, length of facial fovea 0.4 mm, maximum width of facial fovea 0.1 mm, mesoscutum length 1.2 mm, mesosoma length 2.3 mm, forewing length 5.7 mm, length of pterostigma 1 mm, maximum width of pterostigma 0.2 mm, length of marginal cell beyond pterostigma 1.3 mm, length of marginal cell 1.6 mm, length of free-part of marginal cell 1 mm.

Vestiture: Clypeus with thick, white, appressed, weakly plumose hairs. Supraclypeal area, frons and paraocular area with erect, plumose grey hairs. Scape hairs sparse, white, erect and weakly plumose. Vertex with tall, greyish, plumose hairs, about five black plumose hairs intermixed. Gena ventrally with long, weakly plumose, white hairs. Mesoscutum, scutellum and metanotum covered in sparse (integument easily visible), whitish, plumose hairs with a few black, plumose hairs intermixed. Mes- and metepisterna covered in fairly sparse, long, white, plumose hairs. Propodeum sparsely covered in greyish, plumose hairs (integument easily visible). T1–T5 discs covered in sparse, inconspicuous, short, whitish hairs, no posterior hair bands; visible part of T6 covered in long, plumose, mainly black bristles. Sterna covered sparsely in long, white, plumose hairs, no posterior hair bands.

Integumental colour:All black except that flagellomeres slightly paler ventrally (but no orange or yellow colouring).

Head: Clypeus protuberant and shiny with fairly dense punctation (interspace approximately 1 × puncture diameter), punctation denser on apical edge (interpsace approximately 0.5 × puncture diameter), integument finely reticulate between punctures; no clypeal sulcus. Supraclypeal area raised, anterior face of supraclypeal area shiny with fine reticulate sculpture. Paraocular area with roughened, near-carinulate sculpture. Frontal line carinate. Frons with roughened, almost carinulate sculpture. Facial fovea ovoid, smooth and easily discernable from surrounding integument. Inner eye orbits straight, proportion of lower to upper interocular distance equal. Vertex with roughened sculpture, but not carinulate, rounded in anterior profile. Gena weakly carinulate and narrower than eye (0.6:1). F1 slightly elongate. Antenna long, reaching scutellum.

Mesosoma: Mesoscutum and scutellum with shiny, reticulate sculpture and fairly dense punctation (interspace 1 × puncture diameter), median line and notaulus shallowly impressed. Metanotum with rough, reticulate sculpture and sparse punctation. Mes- and metepisterna with dense reticulate sculpture, episternal groove arced forward, pitted throughout. Propodeum strongly angulate, propodeal triangle basal area almost horizontal, weak longitudinal carinae on basal area, remainder of triangle with uniform, roughened, reticulate pattern, margins of triangle not pitted.

Metasoma: All tergal discs with uniform, finely reticulate reticulate sculpture. T1–T5 with sparse micropunctation (interspace>2 × puncture diameter). T6 with denser punctation (interspace 0.5–1 × puncture diameter), punctures also larger. T2 fovea indistinct ovoid.

Terminalia: Gonobase large, gonoforceps hairy posteriorly, ventrally membraneous, penis valves narrow ( Fig. 23 ). S6 posteriorly weakly concave, tufts of hair on rear margin of posterior lobes, anteriorly strongly concave ( Fig. 24 ). S7 concave posteriorly, hirsute posterolaterally ( Fig. 25 ). S8 glued to card, anterior region not discernable, rounded and very hairy posteriorly ( Fig. 26 ).

Figures

Figs 23–26. Scrapter eremanthedon sp. n., terminalia: (23) genitalia (dorsal and ventral views), (24–26) S6–S8. Scale bar = 0.4 mm.