ART. 5 GENERIC EEVISIOX OF THE FOSSORIAL. WASPS — PARKER 119 



spots by apical lines; femora, except more or less of the proximal 

 half; tibiae; and tarsi; yelloic. 



The wings are hyaline. The pubescence is white, rather short, and 

 dense. It is very short, but unusually conspicuous on all segments 

 of the abdomen. The flagellum is black above, light yellowish below, 

 and segments 5-9 are spinose below. Segments 10 and 11 are slightly 

 excavated below. The posterior border of the middle femur is 

 dentate except near the proximal end. The second sternite bears a 

 prominent, median, laterally compressed process that ends in a short, 

 curved sharp point. The sixth sternite bears a prominent, narrowed, 

 median, bluntly pointed process whose ventral surface is grooved. 

 The seventh sternite bears a median longitudinal carina that reaches 

 the posterior end of the sternite and assumes almost the proportions 

 of a process. The anterior metatarsus bears six spines. 



In general appearance this species resembles nuhilipennis but may 

 readily be distinguished from that species by the absence of lateral 

 processes on the sixth sternite. It also resembles somewhat the male 

 of connexa but differs from that species in having the propodeum, 

 metanotum, metapleura, and mesopleura whoUj'^ black. 



Length 18 mm. Described from a single male bearing the label, 

 " Oak Creek Canon. Ariz., 6,000 feet, July, F. H. Snow." 



Type. — In the collection of the University of Kansas. 



BEMBIX MUSCICAPA Handlirsch 



Brmtex mtiscicapa Handliksch, Sitz. Akad. Wissensch. Wien. Math. -Nat. CI., 



vol. 102, 1893, p. 828.— Dalla Torke, C:it. Hym.. vol. 8. 1897, p. 509. 

 Bemhex sapi Fox. Proc. Acad. Nat. Sci. Phila.. 1895, p. 359. 

 Bemhix foxi Pabkek. Proc. U. S. Nat. Miis.. vol. 52, 1917, p. 96. 



This species is conspicuous for tlie distribution of its mnculations. 

 The sides of the thorax and propodeum are profusely maculated and 

 the scutum bears more or less well-developed discal and lateral lines, 

 but the scutellum, metanotum, and dorsum of the propodeum are. in 

 the male, entirely black and in the female only the scutellum bears 

 lateral spots. On some females there are yellow spots on the posterior 

 surface of the propodeum. The male is also distinguished by the 

 large, long, curved, sharp-pointed process on the second sternite. 

 The fascia on the first tergite on both sexes is always narrower than 

 the others and is always more or less widely interrupted, but any of 

 the other fasciae may be weakly connected or all may be interrupted. 

 The third, fourth, and fifth are most frequently connected at the 

 midline. 



In the collection of tlie United States National Museum there are 

 eight males and eight females of this species, all from Porto Rico. 



