no. 2173. A REVISION OF THE BEMBICINE WASPS— PARKER. 5 5 



spine, which, with the incision on the metatarsus, forms a structure 

 quite similar to the antenna cleaner invariably found on the first 

 pair of legs of wasps and bees. In addition to the two prominent 

 processes on the second sternite of the type specimen, there is a 

 smaller and more widely separated pair on the third and an incon- 

 spicuous pair on the fourth. These secondary ventral processes are 

 also more or less well developed on the other males. 



In both sexes the wings are hyaline, short, and scarcely reach the 

 posterior border of the third abdominal segment. The veins are 

 brown. The pubescence is short, white, and not conspicuous. The 

 male of this species can scarcely be confused with that of any other 

 except divergens, from which it can be distinguished by the more 

 extensive maculations of the latter and particularly by the form of 

 the genital stipes. The peculiar modification of the middle femora, 

 the unique structure found at the union of the middle tibia and meta- 

 tarsus, and the presence of secondary processes on sternites three 

 and four separate this species and the one following from all others. 

 Length, 9-12 millimeters. 



Habitat. — Florida, Texas. 



Number of specimens examined — Males, 4; females, 5. 



STICTIELLA DIVERGENS, new species. 



Figs. 78, 79, 95, 110. 



Male. — Black: Labrum, mandibles except tips, clypeus, scape, 

 flagellum below, lower part of frons extended upward between 

 antennae, irregular semicircular spot below anterior ocellus, broad 

 anterior orbits shortened and narrowed to a point above, narrow 

 posterior orbits, posterior border of pronotum, sides of prothorax 

 except irregular spot in front of tubercles, tegulae, lateral lines and 

 pair of discal lines (absent on paratype) on scutum, fascia on scutellum, 

 curved fascia on dorsum of median segment narrowly interrupted 

 medially, lateral angles and spot at spiracles on median segment, 

 spot on metapleurae, mesopleurae almost entirely, mesosternum 

 entirely, fasciae on tergites 1-6, first broad laterally, narrower medially 

 with deep acute anterior median emargination, remaining fasciae 

 somewhat narrower medially than laterally and slightly sinuate 

 (those on tergites 4-6 of paratype narrowly interrupted medially), 

 apex of seventh tergite, second sternite except pair of small anterior 

 lateral black spots, continuous fasciae on sternites 3-6 the more 

 posterior ones narrowest, legs entirely except black spots above on 

 trochanters and basally on femora and conspicuous black spots 

 on all segments of the anterior tarsi below, bright yellow. The more 

 posterior fasciae on the abdomen both above and below are, however, 

 yellowish white. 



