ART. 5 GENERIC REVISION OF THE FOSSOEIAL WASPS PARKER 71 



The flagellum is black above, yellow or ferruginous below, and 

 segments 8-11 of the male are somewhat prominent on their posterior 

 distal border but can not be termed spinose. The labrum bears a 

 prominent, transverse median notch whose lower border assumes 

 somewhat the form of a tooth. The sixth tergite of the female and 

 the seventh of the male bear an evident apical pygidial area set off 

 by short lateral ridges. The anterior metatarsus is provided with 

 eight spines. The infumation of the wings is slight, although a 

 little more evident in the female and a little more uniform than in 

 the male. The pubescence is short and fairly dense on the head, 

 thorax, and propodeum; gray on the head, sides of thorax, and on 

 the propodeum; brownish on the scutum. The posterior border of 

 the middle femur of the male does not bear evident teeth or spines. 

 The second sternite of the male bears a prominent median process 

 and the sixth a conspicuous, short, median tooth bluntly rounded at 

 the point. The genital stipes is distinct in form as shown in Figure 

 136. 



BEMBIX TAIWANA Bischoff 



Btmbex taiu-(inu Bischoff, Deutscli. Ent. Zeitschr., Heft., 7, 1913, p. 712. 



Of this species I have before me a male and a female identified 

 by Bischoff. The pubescence on the head, thorax, and propodeum 

 of the male is almost white, not unusually long but unusually dense, 

 especially on the scutum. The scutum, except for very inconspicu- 

 ous lines above the base of the wings, is entirely black ; the scutelluni 

 bears a narrow fascia; the maculations of the metanotum. the 

 propodeum, and the sides and venter of the thorax are so extensive 

 as to render these parts almost devoid of black. The color is a pale, 

 clay-colored yellow. The tergites are wholly of this color, the first, 

 second, third, and fourth each bearing a pair of much reduced, trans- 

 verse, black spots or lines. Segments 10 and 11 of the flagellum 

 bear prominent excavations, and 7-9 are somewhat spinose. The 

 posterior border of the middle femur is smooth but is much com- 

 pressed and wedgelike. The second sternite shows only a trace of 

 a carina and the sixth a low, roundly-pointed, triangular prominence. 

 The seventh tergite is deeply emarginate at the apex and at the 

 base there is a pair of short but distinct lateral ridges whose posterior 

 ends do not form spines or sharp angles. 



The color on the female is a more decided yellow. The scutum 

 bears a pair of posterior, median discal marks ; the fascia on the 

 scutelluni is interrupted ; and the yellow on the metanotum and 

 dorsum of the propodeum is less extensive than on the male. The 

 side of the thorax and tlie propodeum are similar to those of the 

 male. The fasciae on the tergites are less extensive than those on 



