1933] New Psammocharidx from the United States 5 
Episyron arizonica sp, nov. 
5 Bluish black throughout, no pale on orbits nor on ab- 
domen; wings nearly uniform black, only little darker to- 
wards tips. Head and thorax and basal abdominal segment 
hairy as in E. bigwttatus. The femora with very fine short 
hairs beneath as in biguttatus (not long as in calif omica ) . 
Front tarsi with three comb-spines on front basitarsus, but 
all, as well as others, longer than in biguttatus , the one at 
tip extending over tip of second tarsal joint, otherwise legs 
spined as in biguttatus; third joint of antennae long as in 
biguttatus , no median line on lower face as shows in bigut- 
tatus. Abdomen more slender than in biguttatus, scarcely 
any hairs on basal part of venter, many near tip ; venation 
as in biguttatus. 
Length 11 mm., fore wing 10 mm. 
From Apache Camp, Santa Catalina Mts., Arizona, 25 
July, 5,500 ft. (J. Bequaert). Type M.C.Z. 17033. 
Sericopompilus fumosus sp. nov. 
$ Body and antennae black, the hind border of the prono- 
tum with a yellowish band; fore wings black except the 
base ; hind wings fumose, base clearer ; legs black, hind tarsi 
with the upper half of the second, third, and fourth joints 
and on mid tarsi, the upper half of first, second, third, and 
fourth joints white, hind tibia with a white streak on basal 
half above. 
Body very slender as in S. cinctipes , and the structure 
generally similar. Clypeus rounded below; ocelli in a low 
triangle, the posteriors a little nearer to eyes than to each 
other ; hind border of pronotum broadly arcuate ; propodeum 
scarcely arched, with a silvery sheen in certain lights; ab- 
domen black, beneath with a few fine hairs, most numerous 
near the tip ; long spur of the hind tibia two-thirds of basi- 
tarsus. Wings with venation very similar to S. cinctipes, 
but the third submarginal cell is less narrowed above, and 
the second recurrent ends at middle of third submarginal. 
Length 7 to 8 mm., fore wing 7 to 8 mm. 
Type M.C.Z. 17050. From Colorado Springs, Colo., 12 
