Nomada roggeveldi KUHLMANN, 2023

Kuhlmann, Michael, 2023, The South African species of the bee genus Nomada SCOPOLI, 1770 (Hymenoptera, Apidae), Linzer biologische Beiträge 55 (1), pp. 155-186 : 163-167

Nomada roggeveldi KUHLMANN nov.sp. ( Figs 45-56 )

T y p e m a t e r i a l: (11 specimens). Holotype, ♀: South Africa, Sauer , Suurfontein, 3120CC [32°50´S 18°40´E], 1.ix.1994, leg. V.B. Whitehead, SAM-HYM-B007599 ( SAMC) . Paratypes: South Africa, 3♀♀, Namaqualand , Bowesdorp [30°09´S 17°56´E], ix.1941, leg. Museum Staff, SANC-Pretoria database No. HYMA02050 (2♀♀ SANC), SAM-HYM-B007601 (1♀ SAMC) ; 1♀, Roggeveld Mts. , 2 km S Farm Perdekloof, rivier, dolerite, 31°47´35´´S 19°58´16´´E, 1220 m, 2.ix.2017, leg. M. Kuhlmann ( RCMK) ; 2♀♀, Roggeveld Mts. , 2 km SE Farm Allemansdam, burnt area, 31°49´32´´ S 19°59´55´´ E, 1290 m, 2.ix.2017, leg. M. Kuhlmann ( RCMK) ; 1♀, idem., 29.viii.2018 ( RCMK) ; 1♀, idem., 20.ix.2022 ( RCMK) ; 2♀♀, 6 km NNW Farm Kanariesfontein, 30 km W Sutherland , road side, 32°22´17´´S 20°22´50´´E, 1310 m, 16.ix.2017, leg. M. Kuhlmann ( RCMK) .

D i a g n o s i s: The female of N. roggeveldi is best identified by the conspicuous flat clypeus ( Figs 52, 55 ). Labrum with low and short longitudinal median carina ending in a single medial tooth ( Figs 53, 56 ). First flagellar segment distinctly longer than second (ratio 1: 0.53) ( Fig. 51 ). Hind tibia apically with a row of five to seven slightly downward bent brownish-black spines.

D e s c r i p t i o n

F e m a l e: Body-length: 6.5-8.0 mm (Habitus: Figs 45-46 ). Head: Head black, reddish-brown are: antennal scape directly at the base, flagellum ventrally dark reddish-brown (except first flagellar segment orange), malar area and part of the mandible ( Fig. 47 ). Head slightly broader than long. First flagellar segment significantly longer than second (ratio 1: 0.53) ( Fig. 51 ), all other flagellar segments a little longer than wide. Supraclypleal area with raised longitudinal keel that has its highest point between the antennae. Integument around ocelli impunctate. Clypeus flat, with fine and dense elongate punctation, surface between punctures smooth and shiny ( Figs 52, 55 ). Labrum transversely oval shaped, with a single medial black tooth, surface finely punctate, smooth and shiny between punctation ( Figs 53, 56 ). Mesosoma: Integument black; reddish-brown are: pronotum except laterally, pronotal lobe, spot on tegula ( Fig. 48 ), scutellum with lateral spots, metanotum with medial transverse oval spot and an inverted-U-shaped maculation on the mesepisternum (variable in size and form) ( Fig. 49 ). Scutum and propodeum finely punctate, shiny and smooth between punctures; scutellum and metanotum with slightly finer punctation, matt; scutellum slightly depressed medially and with distinct lateral swelling ( Fig. 49 ). Wings: Wing venation reddish-brown at the base, apically brownish to black, membrane hyaline brown ( Fig. 46 ). Legs: Front leg predominantly reddish-brown with black and brown maculation, mid and hind legs predominantly brownish-black ( Fig. 46 ). Hind tibia apically with a row of five to seven slightly curved brownish-black spines. Metasoma: Metasoma mostly black; reddish-brown are posterior half of T1 and all of T2, on T3-4 with a narrow transverse stripe in front of the marginal zone ( Fig. 50 ). S1-2 reddish-brown. Punctation of T1 more scattered than on following terga, punctures are about as far apart as their diameter. All other terga densely punctate and matt, punctation of T2-6 successively coarser, marginal zones of T1-4 smooth. Posterior margin of T5 very slightly concave medially, pseudopygidial area medioapically with long backwards directed black setae surrounded by short appressed silvery hair ( Fig. 54 ). Pygidial plate narrow and flat triangular with rounded tip, finely punctate ( Fig. 54 ).

M a l e: Unknown.

E t y m o l o g y: Named after the Roggeveld Mountains between Calvinia and Sutherland where most specimens of this species were collected.

G e n e r a l d i s t r i b u t i o n: Found in the Roggeveld Mountains between Calvinia and Sutherland, at the foot of the Kamiesberg Mountains in the wider area of Kamieskroon and in lowlands west of Piketberg.

H o s t: Unknown.

Figures

Figs 45-50: Nomada roggeveldi KUHLMANN nov.sp., ♀ (45) dorsal view; (46) lateral view; (47) head; (48) scutum; (49) propodeum; (50) metasoma.

Figs 51-56: Nomada roggeveldi KUHLMANN nov.sp., ♀ (51) first and second flagellar segments; (52) clypeus; (53) labrum; (54) pseudopygidial area and pygidial plate; (55) clypeus lateral; (56) tooth on labrum (dorsal view).