Scrapter roggeveldi, 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 : 50-54

Scrapter roggeveldi sp. nov.

urn:lsid:zoobank.org:act:A27CB4A6-3323-440A-A4A1-C5C8F545A389

Figs 26–27

Diagnosis

The female of S. roggeveldi sp. nov. can be separated from other species of this group by the combination of the following characters: supraclypeal area and clypeus densely and distinctly punctate, partly superficially sculptured and matt ( Fig. 26B ), scutum densely but relatively finely punctate ( Fig. 26 C–D), stigma brown, apical margins of metasomal terga black, terga minutely punctate ( Fig. 26E ). The male

is characterized by an unmodified antenna, hind tibia apically broadened inside, forming a ± right angle ( Fig. 27G ), S4–S5 with long apical hair fringes ( Fig. 27E ) and the form of S7 ( Fig. 27D ).

Only one male of this species was collected, near Sutherland, but a single specimen from the Hantam Plateau about 130 km further NW probably represents the female of this species. This female is diagnosed and described here, but because of the uncertainty it is not included in the type series.

Etymology

Named after the Roggeveld Mountains between Calvinia and Sutherland where this species was found.

Type material (1 specimen examined)

Holotype

SOUTH AFRICA: ♂, Farm Kanolfontein , 20 km W of Sutherland, road side, 1385 m, 32°24'43" S, 20°27'28" E, 7 Sep. 2012, M. Kuhlmann ( RCMK).

Additional material examined

SOUTH AFRICA: 1 ♀, Plateau Hantam Mts., weather stn., 12 km N of Calvinia, 1580 m, 31°21'13" S, 19°47'53" E, 11 Sep. 2010, MK (RCMK).

Description

Female

BODY LENGTH. 4.8 mm.

HEAD. Head wider than long. Integument black, except part of mandibles dark reddish-brown. Face sparsely covered with long, greyish, erect hair ( Fig. 26B ). Clypeus almost flat with coarse, shallow and sparse punctation (i = 1–2 d); surface between punctures apically smooth and shiny, basally superficially shagreened and slightly matt ( Fig. 26B ). Malar area medially narrow, almost linear. Antenna dorsally blackish-brown, ventrally yellowish-brown.

MESOSOMA. Integument black. Mesoscutal disc between punctures superficially reticulate but shiny; disc densely (i = 1–2 d), shallowly and finely punctate ( Fig. 26 C–D). Metanotum slightly shorter than basal area of propodeum, apically with narrow carinate depression ( Fig. 26D ). Propodeum basally shallowly carinate ( Fig. 26D ). Mesoscutum, scutellum, metanotum, mesepisternum and propodeum sparsely covered with short, greyish, erect hair ( Fig. 26A ).

WINGS. Slightly yellowish-brown; wing venation and stigma brown.

LEGS. Integument completely black to dark reddish-brown. Vestiture greyish-white, scopa greyish-white, dorsally blackish ( Fig. 26A ).

METASOMA. Integument black, apical margins of terga partly and narrowly translucent reddish-brown ( Fig. 26E ). Disc of T1 without hair; following terga with very short but increasingly more and longer hair; T3 basally with a narrow and very sparse band of very fine, short, erect hair; apical tergal hair bands missing on all terga ( Fig. 26E ). Prepygidial and pygidial fimbriae greyish-brown. T1 very finely, superficially and sparsely (i = 2–3d) punctate, between punctures superficially sculptured but shiny; T2–T4 shiny, with dense, fine, superficial punctation; T2–T4 with superficially sculptured, broad apical tergal depression ( Fig. 26E ).

Male

BODY LENGTH. 5.0 mm.

HEAD. Head slightly wider than long. Integument black, except mandible partly dark reddish-brown. Face densely covered with long, greyish-white, erect hair. Malar area medially narrow, almost linear. Antenna dorsally dark brown, ventrally yellowish-brown except last three flagellar segments almost completely dark brown ( Fig. 27A ).

MESOSOMA. Integument black. Mesoscutal disc between punctures strongly reticulate and matt; disc finely, very shallowly and almost invisibly, sparsely punctate (i = 2–3 d). Mesoscutum, scutellum, metanotum, mesepisternum and propodeum covered with long, greyish, erect hair ( Fig. 27A ).

WINGS. Slightly yellowish-brown; wing venation and stigma brown.

LEGS. Integument black or dark reddish-brown ( Fig. 27A ). Hind tibia inside apically broadened, with an almost rectangular edge ( Fig. 27G ). Vestiture greyish-white.

METASOMA. Integument black, apical margins of terga partly narrowly translucent dark reddish-brown ( Fig. 27C ). Discs of T1–T3 without hair, laterally sparsely covered with short, erect greyish-white hair; following terga with sparse and very short but increasingly more and longer hair; apical tergal hair bands missing on all terga ( Fig. 27C ). T1 and following terga sparsely (i = 2–3 d) and almost invisibly very finely and superficially punctate, between punctures superficially sculptured and shiny; terga with broad, superficially sculptured but shiny apical tergal depression ( Fig. 27C ). S3 and particularly S4–S5 with long apical hair fringes ( Fig. 27E ).

TERMINALIA. Genitalia ( Fig. 27B ), S7 ( Fig. 27D ) and terminal plate of S8 ( Fig. 27F ) as illustrated.

Distribution

The species is known from higher altitudes at the extreme northern and southern ends of the Roggeveld Mountains.

Floral hosts

Aizoaceae : Galenia sarcophylla .

Seasonal activity

September.

Figures

Fig. 26. Scrapter roggeveldi sp. nov., ♀. A. Lateral view. B. Head (SEM). C. Thorax (dorsal view). D. Thorax (dorsal view, SEM). E. Metasoma (dorsal view). Scale bars: photos: 1 mm, SEM: 0.1 mm.

Fig. 27. Scrapter roggeveldi sp. nov., ♂. A. Lateral view. B. Genitalia (dorsal view, SEM). C. Metasoma (dorsal view). D. S7 (dorsal view, SEM). E. Metasoma (ventral view). F. S8, apical end (SEM). G. Hind tibia. Scale bars: photos: 1 mm, SEM: 0.1 mm.