374 ENTOMOLOGICAL NEWS. [Oct., ’08 
Stizus (J/egastizus) unicinctus Say. 
We have not seen this species. It is recorded from Colo- 
rado by Cresson (cat.), and Ashmead (Colo. list). 
Stizus (/egastizus) brevipennis Walsh. 
We have a male of this species from Ft. Lupton, Colorado, 
July 22, 1900. 
Stizus (S/zzvs) subalpinus Ckll. 
This was described as a variety of favus Cam., but inasmuch 
as all the northern ones are as pale as subalpinus, it may be 
called a species; Two males, Ft. Collins, Col,, Aug. 7, 1904. 
Stizus (S/zus) godmani Cam. 
Two males, Boulder, Col. Aug. 30, 1907, fls. of Helianthus 
pumilis (Roh.). ‘This species is common at Las Cruces, New 
Mexico. We have seen many specimens collected by C. H. 
T. Townsend from flowers of Solidago canadensis. 
BEMBICIN. 
Mandibles simple ; maxillary palpi 3-jointed, labial palpi 1-jointed ; spe- 
cies about 1omm. long... ....... Microbembex Patt. 
Mandibles armed with a tooth; species longer than iomm. .....  # 
1. Metathorax emarginate posteriodly SEMEN tae Bembidula Burm. 
Metathorax not emarginate posteriorly, flatorconvex....... 2. 
2. Anterior ocellus linear ; maxillary palpi 4-jointed, labial palpi 2-jointed. 
Bembex Fabr. 
Anterior ocellus round or elliptic; palpiotherwise ........ 3. 
3. Maxilla long, reaching hind coxz; maxillary palpi 3-jointed, labial 
palpi 1-jointed ; anterior beatin elliptic . . . . Steniolia Say. 
Maxilla short; maxillary palpi 6-jointed, labial palpi 4-jointed ; an- 
terior ocellus round or reniform. ....... Stictia Illiger. 
MICROBEMBEX Patt. 
This genus is quite distinct. There is apparently but one 
species known, but it has at least five distinct forms, some of 
which may at a later time be raised to specific value. They 
may be separated as follows: 
Clypeus and labrum mostly black. 3). 2... 0% 2 (5°. 47 I. 
Clypeus and labrum entirely yellow... ............. 2. 
1. Posterior face of metathorax with a large pale spot on each side; a 
large pale spot on pleura; two pale parallel lines on middlé 
of miesonotum » 2... 1 Aare aE monodonta occidentalis. 
