Descriptions and Records of Bees. 531 



1797. Lampas columbhia, Humphreys, Mus. Caloneanuin, p. 45. 



17l>y. Terebratula vttrea ; C'uvier. 



17}M>. Tfrehr»tul(t terebratula; LaiDarck. 



1819. Terebratula Kleinii, Lamarck. 



1866. Terebratula perovalis ; llanley,^f/e Uall. 



1880. Terebratula terebratula ; Douvilli?. 



1894. Terebratula simplex ; Hall & Clarke. 



EXPLANATION OF PLATE XII. 



Terebratula terebratula (Linn6). 

 a, drawn aa seen ; b, c, restored outlines. 



LXIV. — Descriptions and Records of Bees. — XIV. 

 By T. D. A. COCKERELL, University of Colorado. 



Crocisa Wellmani, sp. n. 



? . — Length 14 mm. or sliglitly more. 

 Black with bluish-white hair-markings. Anterior wings 

 very dark fuliginous, with a pair of suffused liyaline spots 

 just beyond the third subraarginal cell. Face densely white- 

 liaired ; clypeus very densely finely punctured ; antennae 

 dark ; pleura with the upper half covered with bluish-white 

 liair, the lower half apparently nude, but with scanty black 

 hair, and with very strong well-separated punctures ; 

 pattern of thorax above simulating a face, with a median 

 nose-like band, a pair of spots for eyes, and a transverse mark 

 on each side anteriorly like a moustache, all strongly defined, 

 the appearance being further aided by a stripe on each side, 

 curving inwards posteriorly, which outlines the liead and 

 suggests hair ; margin of scutellum of the ---*«— >-type, with a 

 conspicuous round .«!pot of hair on each extreme side, but no 

 median spot; a white fringe from underneath the middle; 

 anterior tibise white-haired on outer side, middle and hind 

 tibia} with somewhat more than the basal half white-haired 

 on outer side; basitarsi with a good deal of white hair; first 

 abdonMnal segment with a pair of large U-like lateral marks, 

 placed laterally and not joined basally ; the broad bands on 

 the other segments also broadly interruj)ted, that on the 

 second with a pointed projection anteriorly near the side of 

 the segment ; apical plate narrow ; last ventral segment 

 produced ; fifth ventral not keeled. 



In Friese's table (Vcrh. zool.-bot. Gesell. Wicn, 1905, 

 p. 174) this runs to C. arcuala, Vachul, but that species is 



