Scrapter gessorum, Kuhlmann, 2014

Kuhlmann, Michael, 2014, Revision of the euryglossiform species of the Afrotropical bee genus Scrapter Lepeletier & Serville, 1828 (Hymenoptera: Apoidea: Colletidae), European Journal of Taxonomy 95, pp. 1-69 : 16-18

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Scrapter gessorum

sp. nov.

Scrapter gessorum sp. nov.

Fig. 8 View Fig


The female of S. gessorum sp. nov. can be separated from other species of this group by the combination of the following characters: facial fovea long ( Fig. 8D View Fig ), scutum sparsely punctate, looking almost impunctate and shiny ( Fig. 8 View Fig E–F), mesepisternum strongly reticulate, stigma brown, apical margins of metasomal terga black ( Fig. 8B View Fig ). The male is unknown.


Named after Friedrich† and Sarah Gess from the Albany Museum in Grahamstown who have done pioneering research on the bees and aculeate wasps of southern Africa. Their support of my taxonomic studies on southern African bees is much appreciated.

Type material (2 specimens)


SOUTH AFRICA: ♀, Cape Province, Willowmore / 000368, 33°17' S, 23°28' E, 7 Oct. 1971, C. Jacot- Guillarmod (identified as Scrapter albitarsis (Friese) , det. C.D. Eardley 1995) ( AMGS). View Materials GoogleMaps


SOUTH AFRICA: 1 ♀, Nieuwoudtville, path to farm Glenlyon, 740 m, 31°23'24" S, 19°09'06" E, 7 Sep. 2007, on Ruschia unca , KT (RCMK).



BODY LENGTH. 4.8 mm.

HEAD. Head slightly wider than long. Integument black, except part of mandibles dark reddish-brown. Face sparsely covered with long, greyish, erect hair ( Fig. 8C View Fig ). Clypeus almost flat with dense large, shallow punctation (i = 1.5–2.0 d); surface between punctures apically smooth or only superficially sculptured, shiny, basally more heavily sculptured and matt ( Fig. 8 View Fig C–D). Malar area medially narrow, almost linear. Antenna dorsally blackish-brown, ventrally yellowish-brown.

MESOSOMA. Integument black. Mesoscutal disc between punctures with superficial sculpture, shiny; disc very sparsely (i = 3–5 d), finely and shallowly punctate ( Fig. 8 View Fig E–F). Metanotum about 3/4 as long as basal area of propodeum, apically with indistinct, narrow, carinate depression ( Fig. 8F View Fig ). Propodeum basilaterally with shallow carination ( Fig. 8F View Fig ). Mesoscutum, scutellum, metanotum, mesepisternum and propodeum sparsely covered with short, greyish, erect hair ( Fig. 8A View Fig ).

WINGS. Yellowish-brown; wing venation and stigma brown. LEGS. Integument black to dark reddish-brown; fore tibia anteriorly dominantly yellowish-brown, mid tibia basally with small yellow spot ( Fig. 8A View Fig ). Vestiture greyish-white, scopa greyish-white, dorsally blackish-brown.

METASOMA. Integument black, apical margins of terga sometimes narrowly translucent dark reddishbrown ( Fig. 8B View Fig ). Disc of T1 without hair; following terga with increasingly more and longer hair; apical tergal hair bands missing on all terga ( Fig. 8B View Fig ). Prepygidial and pygidial fimbriae sparse, greyish-brown. T1 impunctate, superficially sculptured and shiny; following terga with stronger sculpture, partly with

very fine, dispersed and superficial punctation; T2–T4 with finely sculptured, relatively broad apical tergal depression ( Fig. 8B View Fig ).




The species is just known from two localities that are about 450 km apart in the Northern Cape and Eastern Cape provinces.

Floral hosts

Aizoaceae : Ruschia unca .

Seasonal activity