256 long's second expedition. 



Head rather small; antennae elongated, second joint very 

 small ; hypostoma bright silvery ; niystax sparse, rigid, black ; 

 thorax with minute black hairs, and a few longer ones on the 

 margin ; wings broad, black ; tergum, segments, excepting the 

 basal one and two terminal ones, reddish fulvous. 



Length more than three-fifths of an inch. 



The styles of the antennas being lost in the specimen, I am 

 not certain that this species is correctly arranged when placed in 

 this genus. It will not agree with Dioctria, as the antennae are 

 perfectly sessile, nor with Dasypogon, as the basal joint of the 

 antennae is nearly four times the length of the second joint. The 

 rectilinear posterior tibiae will not authorize its reference to La- 

 phria. The appearance of the pectus and the adaptation of the 

 feet are precisely as in Asihis. In the arrangement of the wing 

 nervures it agrees with Wiedemann's first tribe. 



[Wiedemann has changed the name to Aeacus because the in- 

 sect belongs to Dasypogon, and Say had already described another 

 under the same specific name, (Discocephala abdominalts Say, 

 Jour. Acad. Nat. Sc. 3, 50). The present species belongs to 

 Stenopogon . — S acken.] 



HEMERODROMIA Hgg. [376] 



H. superstitiosa. — Whitish • thorax with a broad, blackish, 

 brown vitta; tergum with a broad black vitta, which is crenate 

 on its edges. 



Inhabits North-west Territory. 



Antennae, proboscis, and front white ; occiput and inferior part 

 of the head blackish-brown, in some parts slightly sericeous ; 

 eyes chestnut-brown ; thorax with a broad vitta, which is paler 

 in the middle and occupies the greater portion of its surface ; 

 wings hyaline ; poisers white ; scutel dusky, with a paler margin ; 

 tergum, the broad vitta is very deeply crenated on its edges, and 

 is often separated into a series of large spots by the incisures ; 

 beneath white. 



Length nearly three-twentieths of an inch. 



This species is very closely allied to the H. oratoria Fall. 

 The disposition of the nervures is the same with those of that 

 species, but the oratoria is said to have only a line on the thorax 

 in place of a vitta, to have the abdomen all dark brown, and the 

 tip of the posterior tibia brown. 



