: STICTOCEPHALA. 135 



Light gray, front somewhat yellowish towards its anterior 

 margin, covered with rather coarse punctures; the uppermosT 

 hairs near the lateral margin of the front are not longer and 

 stronger than usual. Antennae clay-yellow, third joint rounded- 

 ovate, sometimes rather brownish-yellow. Ground color of face 

 and cheeks clay-yellowish, covered with a whitish pollen. Pro- 

 boscis and palpi clay-yellowish. Thoracic dorsum with some- 

 what scattered blackish-brown dots, which sometimes coalesce 

 in lines upon its posterior portion; moreover with four brownish- 

 black spots in a row corresponding to the transverse suture. 

 Scutellum with four bristles, turgid, pale-gray, with two conspicu- 

 ously large shining-black spots at the end. Metathorax black, 

 pruinose with whitish-gray. Pleurae dotted with brownish-black 

 above. Abdomen with similar dots, usually with a more clay- 

 yellow ground color at the basis ; this color is sometimes more 

 extended and gives the abdomen a more yellowish-gray tinge, 

 while the thorax is whitish-gray. Coxae and feet clay-yellow; 

 posterior coxae at the basis and the tarsi towards their tip, some- 

 what infuscated. Wings hyaline with four perpendicular, not 

 very dark, brown bands, a broad brown border on the posterior 

 crossvein and a brown apex ; the first band begins near the ante- 

 rior margin immediately beyond the humeral crossvein, and is not 

 distinctly perceptible beyond the sixth longitudinal vein ; the 

 anal cell is just filled out by it ; the second band begins at the 

 anterior margin quite near the end of the auxiliary vein, and ends 

 upon the end of the sixth longitudinal vein ; the third band begins 

 immediately before the end of the first longitudinal vein and runs 

 across the small crossvein, at the end of which it is interrupted ; 

 the fourth band generally reaches from the anterior margin not 

 quite as far as the third longitudinal vein, or is continued a little 

 beyond it in the shape of a faint shadow. 



Hab. Nebraska (Dr. Hay den). 



2. S. cribmm n. sp. 9. (Tab. VIII, f. 25.) Prsecedenti simillima, 

 sed major, alarum pictura sirnili, sed saturatiore, fascia tertia et venae 

 transversalis posterioris limbo in fasciam integram confluentibus, tibia- 

 rum omnium apice, posticarumque annulo medio, apice denique tarsorum 

 nigris. 



Very like the preceding, but larger ; the same picture of the wings, but 

 darker ; the third band and the iufuscation along the posterior crossvein 



