Scrapter longicornis, Mack & Kuhlmann, 2023

Mack, Anne & Kuhlmann, Michael, 2023, Revision of the nitidus species group of the bee genus Scrapter Lepeletier & Serville, 1828 (Hymenoptera: Apoidea), European Journal of Taxonomy 912, pp. 1-119 : 45-47

Scrapter longicornis sp. nov.

urn:lsid:zoobank.org:act:5CB151CF-94AD-489C-AFBA-1F19EB582474

Figs 31–32

Diagnosis

The male of S. longicornis sp. nov. can be separated from that of all other species of this group by the following character combination: flagella of antennae are twice as long as the compound eye ( Fig. 31A ); gonocoxites are medially angular-shaped ( Fig. 32B ); scutum is completely densely (i <1 d) punctate ( Fig. 31B ); discs of T1–T3 unevenly punctate, basally denser (i <1 d) than apically (i> 1 d) ( Fig. 31D ). The female is unknown.

Etymology

Named after the unique long antenna of the male.

Type material (1 specimen)

Holotype

SOUTH AFRICA • ♂; Montagu ; 33°47′ S, 20°07′ E; 220 m a.s.l.; 23–30 Sep. 1924; RT leg.; NHML.

Description

Male

BODY LENGTH. 7.4 mm.

HEAD. Wider than long. Integument black, mandibles dark brownish to reddish. Face densely covered with long, white, erect hair. Ocelli at level of posterior margin of complex eyes. Malar area medially narrow, slightly curved. Antennal flagella ventrally yellow, dorsally black, twice as long as compound eye.

MESOSOMA. Integument brownish-black. Scutum densely (i <1 d) punctate; surface between punctation smooth and shiny ( Fig. 31B ). Propodeum laterally coarsely carinate, in middle rugulose-areolate ( Fig. 31C ). Scutum, scutellum, metanotum, mesepisternum and propodeum sparsely covered with long, brownish to greyish, erect hair.

WINGS. Yellowish-brown, stigma and wing venation brownish ( Fig. 31A ).

LEGS. Integument brownish, fore and mid tibia with yellow spot. Vestiture greyish-white ( Fig. 31A ).

METASOMA. Integument brownish. Disc of T1 without hair ( Fig. 32A ), T2–T4 basally greyish, dense, short, erect hair band, covering third of tergite. Posterior margins of T3–T4 at least laterally with single hair row of short, erect, greyish hair ( Fig. 31D ). Discs of T1–T3 unevenly punctate, basally denser (i <1 d) than apically (i> 1 d); medially slightly denser than laterally; surface between punctation smooth and shiny ( Fig. 31D ).

TERMINALIA. Genitalia ( Fig. 32B ), S7 ( Fig. 32C ) and terminal plate of S8 ( Fig. 32D ) as illustrated.

Distribution

Only known from the type locality, the town Montagu.

Floral hosts

Unknown.

Seasonal activity

September.

Figures

Fig. 31. Scrapter longicornis sp. nov., holotype, ♂ (NHML). A. Lateral view. B. Scutum and scutellum (dorsal view). C. Metanotum and propodeum (dorsal view). D. Metasoma (dorsal view).

Fig. 32. Scrapter longicornis sp. nov., holotype, ♂ (NHML). A. Terga 1–2 (dorsal view). B. Genitalia (dorsal view). C. Sternum 7. D. Sternum 8.