288 KANSAS ACADEMY OP SCIENCE. 



Black; mandibleB castaDeous, black at base and apex; coxae and trochanters 

 black; anterior legs yellowish ferruginous, femora black at base, tarsi blackish 

 at apex; middle legs like the anterior pair, but basal half of femora black and all 

 tarsi except basal two- thirds of metatarsi blackish ; posterior femora ferruginous, 

 basal half black, tibia3 yellowish ferruginous, basal and apical fifths blackish; 

 tarsi blackish except basal two-thirds of metatarsus which is yellowish; a band 

 posterior to the basal fifth of the abdomen and as long as the basal fifth, divided 

 nearly into three equal parts by two semicircular lateral spots, one bordering on 

 each lateral edge of the abdomen and curved inward, the space between these 

 spots rather brownish. Sericeous as in the preceding species. 



Type: University of Kansas. Type locality : Bill Williams Fork, Ariz. One 

 specimen. August, 1903, F. H. Snow. 



Melanobracon montivagus Cresson. 



One specimen with the impressions on the second segment shallow ; therefore, 

 not typical. 



Manitou Park, Colorado; August, 1891. F. H. Snow. 

 Cardiochiles explorator Say. 



Colorado Springs, Colo., 5915 feet; August, 1894. E. S. Tucker. 



Crassomicrodus fulvescens Cresspn. 



Specimen with the first abcissa of the cubitus rather distinct, not decidedly 

 obsolescent. 



Colorado Springs, Colo., 5915 feet; August, 1894. E. S. Tucker. 



Crassomicrodus? medius Cresson. 



Colorado Springs, Colo., 5915 feet; August, 1894. E, S. Tucker. 



Crassomicrodus nigricaudus, n. sp. 



Male. — Length, 10 mm. Head shining; cheeks indistinctly, sparsely punc- 

 tured; front with a deep depressed area that is rugose; face minutely sculptured 

 and closely punctured, the punctures small and shallow, a low oval elevation a 

 little below and between the antennae; clypeus polished, smooth and impunctate 

 anteriorly, punctate posteriorly; scape clavate, pedicellum wider than long, first 

 joint of the flagellum as long as the scape. Antennas thirty-two jointed. Thorax, 

 except the metathorax, smooth and polished; the segment of the pleura imme- 

 diately beneath the tegute dullish, and closely punctured with small punctures ; 

 dorsulum with the parapsidal grooves distinct, medially with a longitudinal nar- 

 row welt that extends posteriorly nearly to the junction of the parapsidal grooves; 

 scutellum with sparse moderately large punctures; pleura of metathorax closely 

 punctured; metanotum rugose; spiracles ovoid, nearly round; wings typical; 

 claws with a short tooth half-way within from apex or claw. Abdomen polished 

 and smooth. Thinly sericeous, with yellowish pubescence, pleura partly bare. 

 Black; basal half of antennae brown, apical half blackish; upper third of pro- 

 thorax and dorsulum castaneous; basal half of the abdomen and the legs, ex- 

 cepting tarsi, brownish testaceous, the legs inclining to testaceous, tarsi honey 

 color, claws dark brown; wings yellowish, apical half infuecated, nervures and 

 stigma testaceous, except in the infuscated region, where they are dark brown. 



Type: University of Kansas. Type locality: Colorado Springs, Colo., 5915 

 feet. One specimen. August, 1894. E. S. Tucker. 



Another specimen, the paratype, from the same place and with the same data 

 as the type, has only the base of the scape and pedicellum brownish and a brown- 

 ish spot on each side of the dorsulum; there is also a slight difiForence in the 

 sculpture of the metathorax. 



