182 



H. Friese, 



Head and thorax very densely rugoso-punctate ; face very broad, rather thinly covered with coarse whitish 

 hair; antennae black, flagellum more or less red beneath; mandibles black, with long golden hairs beneath; 

 tongue rather long, linear; labial palpi elongated, with the first Joint longer than the other three united; maxillary 

 palpi slender; thorax with coarse, dull white hair; tegulae ordinary, shining piceous, whitish in front; scutellum 

 and postscutellum ordinary; metathorax with a transverse subbasal ridge, very prominent, enclosing a band-like 

 shining area, which is more or less plicate; legs black, tarsi (esp. tarsi III) broad; anterior basitarsi and apex of 

 their tibiae, with orange hair, apex of hind basitarsus fringed with bright orange hair ; base of basitarsus hind 

 above ferruginous ; abdomen broad, densely punctured ; wings dusky, the apical margin broadly darker, stigma 

 ferruginous, nervures rather pale brown. L. 10 mm. 



Benguela, Westafrika, am 3. Januar 1908 „taken with many other bees at a patch of flowering Compositae 

 Oihonna and Geigeria [Wellman]. This species is not truly congeneric with such forms as N. ekuivensis, but 

 I should prefer to examine a larger series of the african species commonly assigned to Nomia before proposing 

 any segregated genera." 



Nomia welwitschi Cockll. 



1908 Nomia welwitschi Cockbrell, #$, in: Entomologist, Vol. XL, p. 145. 



<??. Black, head and thorax with dense, coarse pubescence, strongly ochraceous on thorax above, other- 

 wise pallid ; wings strongly and broadly infuscated apically, hind margins of segments broadly whitish or reddish, 

 with hair bands. 



S. Head broad, orbits converging below, face broad, very hairy, antennae dark, ordinary, flagellum dull 

 red beneath, vertex with rough, dense sculpture; mesothorax very densely rugoso-punctate; scutellum normal, 

 rugoso-punctate and dull; metathorax with a subbasal ridge, above which is a narrow (almost linear) area, which 

 is shining and somewhat plicatulate; tegulae ordinary, piceous, pallid in front; wings reddish-subhyaline, apical 

 region with a dark cloud, nervures and stigma dark, stigma small; legs red, coxae and trochanters black and 

 the femora black above, tarsi I fringed with long hair, middle femora short and rather swollen, very shiny, 

 femora III greatly incrassated, concave beneath, with a sharp tooth 011 inner side beyond the middle, tibiae III 

 enlarged, subtriangular, with a broad, blunt, apical lamina, but no tooth on inner side; abdomen broad, with hau 

 bands on all the segments, apex rounded, bright ferruginous. L. 10 mm. 

 J. Legs black, abdominal bands golden-fulvous. 



Ekuiva Valley , West-Africa , 2 c? s, 1 ?, 1 907 , one of the males at flowers of Geigeria (Wellman). 

 The species is named after Welwitsch, the well-known African traveller, who collected bees in Angola 

 many years ago. By the clouded wings and other characters this closely resembles N. nubecula Smith, from 

 Sierra Leone, but it differs from nubecula by the dark mandibles (only slightly ferruginous in the middle), the 

 dark scape, the form of the scutellum, the dark tegulae, etc. The face is broad, whereas in N. nubecula (of Ckll., 

 Trans. Am. Ent. Soc, Vol. XXXI, p. 322) it is narrow. In the form of the hind legs N. welwitschi resembles 

 N. patellifera Westw., except that the tibial process is shorter and biunter. 



Nomia whiteana Cam. 



1905 Paranomia whiteana Cameron, c??, in: Rec. Albany Mus., Vol. I, p. 191. 



3 ?. Black, abdomen with (? — 4, S — 5) smooth shinning, white bands, hair on the head and thorax 

 fulvous when fresh, grey when old, wings hyaline, the stigma testaceous, costa and nervures blackish; hind 

 femora and tibiae in S not much more dilated than in the 5. L. 9 mm. 



