142 Psyche [August 
SOME NEOTROPICAL BEES. 
By T. D. A. CocKERELL. 
Hemisia lanipes (Fabr.). 
Antigua, West Indies (C. A. Barber) Brit. Museum. 
Hemisia semilabrosa sp. nov. 
?. Length 13144 mm.; almost exactly like H. labrosa (Friese), but the 
labrum, though longer than in H. lanipes, is still evidently broader than 
long; the clypeus is smooth and very sparsely punctured, with the median 
third concave; the abdomen is entirely clear red; the hair on the inner side 
of the hind basitarsus is very dark chocolate, but that on the outer side 
of the hind legs is pale reddish. The concave clypeus suggests H. monte- 
zuma (Cress.). Labrum notched at apex, pale yellow with two oval pale 
brown marks; mandibles pale yellow basally, a minute elevation on inner 
side toward the base, and the apical half with three teeth, the large apical 
one, a small one projecting from its side, and a large sharp tooth on inner 
side not far beyond the middle; under side of head with long white hair; 
eyes straw-yellow, rather narrowly fuscous in front; scape short, dark; 
flagellum dark ferruginous beneath except at base; front with pale yellow- 
ish-grey hair more or less tipped with fuscous; vertex with black hair; 
thorax above with short light greyish-brown hair tipped with fuscous; at 
sides the hair is pale ochraceous, not dark-tipped; tegule pale testaceous; 
wings dilute smoky, nervures black, venation practically as in lanipes; legs 
dark, with pale reddish hair, the hind tibiz, and middle and hind tarsi, 
becoming ferruginous; anterior and middle basitarsi each with a longi- 
tudinal, curved, sharp keel on anterior margin toward the inner side; 
anterior and middle knees with a small pale yellow spot; the scanty hair 
of abdomen rufofuscous, clear red at apex. General appearance like H. 
lanipes, but larger, with the two large yellow marks on the clypeus 
triangular. 
Hab.—Ecuador (Rosenberg). British Museum, 99-104. In 
Friese’s table of the subgenus Rhodocentris this runs nearest to H. 
tarsata (Smith), which is only known in the male. H. tarsata comes 
from Santarem, and is only 944 mm. long, and otherwise seems 
distinct from H. semilabrosa. 
Agapostemon swainsonae Sp. nov. 
¢. Length about 8 mm.; head and thorax brilliant green, abdomen and 
legs dull ferruginous; front and mesothorax smooth and shining, with a 
very strong golden lustre, the sculpture consisting of delicate weak striz 
