HYMENOPTERA FROM LOWER CALIFORNIA. 27 1 



with a fringe of long, golden hairs; antennae black, the 

 flagellum beneath fuscous, the apical joint beneath red- 

 dish testaceous; thorax black, its greater part clothed 

 with dense, black pubescence, which gradually shades 

 from hind part of dorsulum into the fulvous pubes- 

 cence with which the middle segment is clothed; 

 pubescence of mesopleurse posteriorly colored as on 

 the front; legs blackish brown, fore femora with 

 black pubescence, that of medial femora a mixture 

 of pale and black, while on the hind pair it is long- 

 est and fulvous, tibiae and first joint of tarsi with short, 

 dark hair on outer portion, internally reddish, apical 

 tarsal joints reddish, with pubescence of a darker color; 

 wings pale fulvo-hyaline, nervures and stigma black; 

 abdomen above with the base of segments 2-4 and 

 the fifth entirely bluish, the apical portion of segments 

 2-4 greenish, first segment and extreme sides with 

 long fulvous pubescence, the fifth and sixth except base, 

 with long black pubescence, the remaining dorsal seg- 

 ments clothed with short, thin, appressed, yellowish pu- 

 bescence, which is most conspicuous on apical or greenish 

 portion, beneath, the abdomen pale testaceous, the apical 

 margins of the segments with a fringe of long, fulvous 

 hair, which is, however, blackish medially on the fourth 

 and fifth segments, the sixth ventral with black pubescence 

 only. Length 18 mm. 



Tepic. One specimen. Distinguished by the color of 

 the thoracic pubescence and of antenna. Related to 

 mexicana Cress, by color of abdomen. 



Megacilissa mp:xicana Cress. Tepic. One speci- 

 men. 



Xylocopa fimbriata Fabr. Tepic. Two speci- 

 mens. 



