LEP1D0PTERA. 



227 



tll a 



In Texas and Arizona there occur several species of 

 Triprocris (Trip'ro-cris). The venation of one of them is 

 shown in Figure 268. IT trr. 



It is remarkable in that 

 none of the branches of 

 radius of the fore wings 

 coalesce beyond the dis- 

 cal cell. 



The genus Harrisina 

 (Har-ris'i-na) seems to 

 be closely allied to the 

 preceding and is placed 

 in this family provision- 

 ally. It differs, how- 

 ever, from the typical 

 form of the family in 

 that the anal area of 



VII, 



vii, 



XI — IX VIIJ 

 Fig. 267. — Wings of Pyromorpha dimidiata. 



the hind wings is greatly reduced, there being only two, 

 short, strongly curved anal veins. As in the other members 



in 2 m °f the family there are 



^in 4 two,well-developed anal 

 ' m * veins preserved in the 

 fore wings. 



In the East the most 

 common species is Har- 

 risina americana (H. 

 a-mer-i-ca'na) (Fig. 269). 



Fig. 268. — Wings of Triprocris marteni. 



Fig. 269. — Harrisina amerzcana. 



The wings are long and narrow; the abdomen is long and 

 widened towards the caudal end. It is greenish black in 

 color, with the prothorax reddish orange. The larva feeds 



