OF PHILADELPHIA. 863 



SCENOPINUS Latr. Fabr. 



S. NUBILIPES. — Black; thorax submctallic ; thighs black. 



Inhabits Indiana. [171] 



Body black : head and thorax with numerous short hairs 

 giving it a granulated appearance, the latter with an obsolete 

 rufous lateral tubercle near the humerus, disk slightly metallic : 

 wings very slightly dusky : poisers blackish : torgum tran.s- 

 versely grooved : thighs black: tibiae dull honey-yellow; tarsi, 

 particularly the posterior pair, whitish. 



Length less than one-fifth of an inch. 



Closely allied to S. jni/lijtes nob., but may be distinguished by 

 the color of the feet. 



CONOPS Fabr. 



C. TIBIALIS. — Black; two-thirds of the wings fuscous; tibiae 

 white at base. 



Inhabits Indiana. 



Body black, with short hairs : head yellow : vertex black : 

 front with a longitudinal black line, bifarious at the base of the 

 antennjB : hypostouia with an impressed saggitate spot : antennae 

 black, terminal joint beneath obscurely rufous : proboscis black : 

 mouth, each side and beneath black : occiput black, with a white 

 reflection : thorax black; humeral tubercle with a whitish reflec- 

 tion : scutel and metathorax black, the latter with a whitish re- 

 flection : wings two-thirds fuscous ; central cross nervure very dis- 

 tinct : poisers yellow, black at the base of the petiole : tergum, 

 segments edged behind with whitish or yellowish, on the basal 

 suture the white band is common ; [172] near the tip with more or 

 less of a whitish reflection : feet black ; tibiae white at base, an- 

 terior and intermediate pairs near the tip with a silvery reflec- 

 tion. 



Length from one half to three-fifths of an inch. 



Resembles C. sagitiaria nob., but differs in several characters. 



PHASIA Latr. 



1. P. ATRIPENNIS. — Black; abdomen and base of the thighs 

 ferruginous. 



Inhabits Indiana. 



Mouth and hypostoma pale yellowish : proboscis black : palpi 

 1829.] 



