no. 2173. A REVISION OF THE B EM BIG IN E WASPS— PARKER. 105 



base of abdomen are covered with dense, moderately short pubescence 

 shortest on the scutum, where it is of a brownish color. The remain- 

 ing segments of the abdomen are covered dorsally with close, fine 

 pubescence, longest on the more apical segments and more evident 

 on the male than on the female. The wings are hyaline, veins dark 

 brown. The eyes are parallel or slightly divergent beneath. In 

 some males the carinae on the sixth sternite are reduced or lacking. 

 The variation in the maculations is not great in either sex, but in 

 both a part or all of the tergal fasciae may be narrowed and inter- 

 rupted medially. The species is well marked and not likely to be 

 confused with any other species herein described. 



Habitat. — New York, Ohio, New Jersey, Florida, Texas, Kansas, 

 Iowa, New Mexico, California, Oregon, and Canada. 



Number of specimens examined — Males, 13; females, 17. 



BEMBIX BEUTENMULLERI Fox. 



Figs. 173, 174, 200. 



Bembex beutenmulleri Fox, Journ. N. Y. Ent. Soc, vol. 9, 1901, p. 83, male. 

 Bembex obsoleta Howard, Insect Book, 1904, pi. 4, fig. 36. 



Bembyx obsoleta Rohwer, Proc. U. S. Nat. Mus., vol. 41, 1912, p. 467, figs. 6, 7, 8, 

 male. 



Male. — Black: Labrum, mandibles except apices, clypeus, spot 

 between antennae, small spot in front of anterior ocellus, scape 

 below, anterior orbits, posterior orbits wanting or reduced to small 

 spots near the lower border of eye, sometimes one or more small spots 

 on sides of prothorax, spot on tegulae, small lateral spots above base 

 of wings on scutum, lateral spots on tergites 1-5, lateral spots on 

 sternites 2-5 and sometimes 6, which may be connected by very fine 

 apical lines, femora distally more or less, tibiae except more or less 

 above, and tarsi, yellow. 



Segments 3-6 of the flagellum are indistinctly carinate on the 

 posterior surface; seen from above 7 appears slightly bispinose, due 

 to the presence of a small pit on the posterior surface ; segments 9-1 1 

 bear larger pits. The eyes are slightly divergent at the clypeus. 

 The middle femora are smooth. The second sternite bears a median 

 longitudinal carina never very strongly developed; the sixth bears a 

 pair of small closely approximated median processes near its apical 

 border, and the seventh ends in a median spine grooved on its ventral 

 surface. 



Female. — Black: Labrum, mandibles except apices, clypeus, spot 

 between antennae, small spot in front of anterior ocellus, scape 

 below, anterior orbits, posterior orbits interrupted above, pair of small 

 lateral spots on posterior border of pronotum, pair of larger spots 

 on sides of prothorax, the more posterior including part of the 

 tubercles, spot on tegulae, small spots on scutum above base of 



