338 Mr. T. D. A. Coclcevell — Descrijytlom and 



Ileriades eJcuivensis, sp. n. 



? . — Length about 8| mm. ; anterior wing about 5| mm. 



Black, with white pubescence ; abdomen with the usual 

 Avhite bands; ventral scopa silvery white; basin of first 

 abdominal seoment with a sl)arp rim ; wings dusky. General 

 appearance like //. truncorum, L., but differing- as follows: — 

 Eyes much larger; cheeks less ample; clypeus with a 

 median ridge on its upper half or more; mesothorax larger 

 and broader ; tegular piceous ; scutellura large, broad, and 

 flat, its straight hind edge projecting; no teeth at sides of 

 scutelhim, and its sculpture entirely different from that of 

 mesothorax, consisting of large deep pits close together, the 

 whole surface being dull, contrasting with the shining meso- 

 thorax ; hind tibiae more robust ; marginal cell a little more 

 pointed at apex. 1"he jirincipal characters are those of the 

 sentellum ; these and the cly])eal ridge suggest affinity with 

 //. ch/peatiis, Friese, from the Transvaal. 



Hub. Ekuiva Valley, W. Africa, 1907 (F. C. WeUmnn). 



Among other bees taken by Dr. Wellman in the Ekuiva 

 Valley are Serapista denticulata (Sm,), Mesotrichia Jiavorufa 

 (De Gear), &c. 



Ileriades wellmam, sp. n. 



$ . — Length 5^ mm. or slightly more. 



Black, with white pubescence ; abdominal bands scarcely 

 developed; ventral scopa creamy white ; basin of first abdo- 

 minal segment with a sharp rim. A small slender species, 

 superficially just like Chelof^toma cavipanularum (Kirby), but 

 differing in the structure of the first abdominal segment and 

 also as tollows : — flagellum ordinary ; punctures of face and 

 fiont much larger; punctures of mesothorax very much 

 larger ; scutellum (wiiich is ordinary, not projecting) with 

 deep sparse punctures on a shining ground. Wings iiyaline, 

 dusky apically ; second s.m. receiving second r. n. very near 

 its apex, and the first about twice as far from its base ; punc- 

 tures of abdomen large and deep. Somewhat related to 

 //. eau'mi'us, Friese, apparently. 



Bab. Hinterland of Benguella, Jan. 3, 1908 {F. C. 

 Wellman^. 



Taken with other bees {Ccelioxys hengueUensis &c.) at a 

 small patch of flowering Composita:', Olhonna and Geigeria. 

 No pollen had been collected. 



Xijhcopa valga, Gerst. 

 I received from the Museum of Comparative Zoology two 



