102 S. A. ROHWER. 



wardly. Abdomen shining, elongate, attenuated toward the apex; 

 the basal margin of dorsal segments 2-5 constricted. Black: man- 

 dibles except the teeth, which are reddish, cream- colored; anterior 

 legs below the apices of the femora, four posterior knees somewhat, 

 four posterior tarsi (the tarsi are more or less infuscated) reddish- 

 yellow. Pectus, face below the antennae and clypeus with silvery 

 pubescence. Wings clear hyaline, iridescent; venation black. 



Habitat. — Florissant, Colorado, July 19, 1906, at flowers of 

 Eriogonum umbellatum (T. D. A. Cockerel!) . 



This may be the male of columbanius Kohl, described from 

 British Columbia, but the legs are darker, the frontal line is 

 not " distinct," the pleurae are not more shining than the dor- 

 sulum. It is also related to A. constrictus (Prov.) described 

 as an Anacrabo from Los Angeles, California, but the abdomen 

 could not be called "shortly petiolate" nor "oval," and the 

 legs are of different color. 



Stigmus inordinatus Fox. 



I have seen specimens of this species from the following 

 localities. Three males, Boulder, Colorado, August 24, 1908, 

 and July 28, 1908, on foliage of Rulac negundo (S. A. Rohwer) ; 

 female, Campus of the University of Colorado, August 24, 

 1908 (T. D. A. Cockerel!); a male collected by Prof. C. P. 

 Gillette, in Larimer Co., Colorado; a female, Beulah, New 

 Mexico, caught by Mrs. Cockerell, who saw it catch aphids. 

 The Beulah specimen has the venation paler than the Boulder 

 specimens. 

 Stigmus inordinatus universitatis n. subsp. 



This subspecies differs from inordinatus in having the four 

 anterior legs orange-red, and finer sculpture of the dorsulum. 

 The dorsulum and head are polished not visibly punctured; 

 the fossulets of the metathorax are larger. The scape is 

 somewhat curved. 



Habitat. — Campus of the University of Colorado, Boulder, 

 Colorado, August 14, 18, 24, 1908 (Prof. T. D. A. Cockerell) ; 

 and Lawrence, Douglas Co., Kansas, July (E. S. Tucker). 



Stigmas lucidus n. sp. 



M ale .—Length 3.5 mm. Anterior margin of the clypeus produced 



into an entire obtuse point. Face below the length of the scape dullish 



apparently finely granular; the rest of the head is shining, impunctate. 



