222 ENTOMOLOGICAL NEWS. [May, ’o08 
sharp, very finely punctured, with a few widely scattered large punc- 
tures. Color black; apical tarsal joints rufous; abdomen clear red, 
with triangular shaped patches of silvery pubescence on apical lateral 
margin on the first, second and third segments (this pubescence can 
only be seen in certain lights); face, pectus and lower part of pleure 
with silvery pubescence, Wings dusky hyaline, nervures black. 
Habitat—Jim Creek, Boulder Co., Colo., September 7, 1907 
(Glenn M. Hite). 
The pygidium is similar to that of triquetrus Fox (Nev.) 
but it is not that species. 
Disregarding the pygidium it runs in Fox’s N. Am. Lar- 
ride, to tarsatus Say, but differs from that species as follows: 
punctures on the dorsulum not uniform throughout; poster- 
ior face of metathorax not striated but punctured; abdomen 
above with fine punctures; smaller size, etc. 
It also seems related to T. punctulatus H. S. Sm. (Ent. 
NEws, Sept. ’06, p. 246) from Nebraska, but may be separated 
from that species by these characters; clypeus densely and 
rather coarsely punctured; different puncturing of the front; 
scape and mandibles without rufous; differently punctured 
dorsulum ; abdomen clear red, with silvery pubescence at sides 
of first three abdominal segments, etc. 
Tachysphex foxii n. sp. 
2. Length 8 mm. Clypeus rounded anteriorly, the apical margin 
slightly uneven, lateral teeth if present very small, rather densely 
punctured throughout; front with large well separated punctures, punc- 
tures on vertex not quite as dense; a distinct furrow from lower ocellus 
to near occiput; depression back of lateral ocelli rather distinct; space 
between eyes at the top a little more than the length of antennal joints 
three plus four; dorsulum, scutellum and postscutellum shining, with 
distinct well separated punctures; mesopleure and pectus similarly 
punctured; metathorax above reticulate to coarsely granular; meta- 
pleure densely coarsely punctured; posterior face somewhat indis- 
tinctly striated, with a distinct elongate fovea, which is wider at the 
top; abdomen with fine dense punctures above, except the apical mar- 
gin of the second and following segments which are shining and with- 
out punctures, venter shining, without or with very few punctures; 
pygidium margined, about twice as long as the width at base, with a 
few widely scattered punctures. Color black; band on middle of man- 
dibles and two apical segments of abdomen rufous (abdominal seg- 
ments brighter rufous); sides of abdominal segments, face, lower half 
