ORTALlD^l — ST1CTOCEPHALA. 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 aud 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. 



Eab. Nebraska (Dr. Hay den). 



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

 sed major, alarum pictura simili, sed saturation, fascia tertia et venae 

 transversalis posterioris limbo in fasciam integram confluentibus, tibia- 



• rum omnium apice, posticarumque annulo medio, apice denique tarsorum 

 nigris. 



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

 darker : the third band and the infuscation along the posterior crossvein 



