88 ILLINOIS BIOLOGICAL MONOGRAPHS [88 



noted that the Pi group on the mesothorax and metathorax is unisetose, 

 that alpha on segment 9 is about as far from rho as from beta, and that 

 kappa, eta, and mu are present and subequal in size, but not closely- 

 associated with each other. The species examined was Clydonopteron 

 (Salohrana) tecomae. 



Galleriinae. Aside from their peculiar habits as pests of beehives, 

 these larvae are easy to recognize by distinctive structures as well. The 

 Pi group on the last two thoracic segments is bisetose ; the two setae of 

 the Kappa group on the prothorax as well as the abdomen are nearly 

 in a horizontal line instead of a vertical one as usual; the crochets are 

 either biordinal or uniordinal, never triordinal, and are arranged in a 

 complete circle; alpha, beta, and rho on segment 9 form an equilateral 

 triangle, rho being directly ventrad of beta. 



Two species were examined. In Galleria mellonella (^cereana) 

 the body is thickened in the middle and tapering towards both ends and 

 the coxae of the metathoracic legs are twice as far apart as wide. In 

 Achroia grisella the body is cylindrical and the thoracic legs are close 

 together. 



Epipaschiinae. This small group is a closely circumscribed one 

 with characters which associate it with Phycitinae. A few of the latter 

 show nearly all the peculiarities of this subfamily, so Epipaschiinae are 

 introduced into the table for the separation of the genera of Phycitinae 

 instead of being separated from them in the synopsis of the subfamilies. 

 The crochets are triordinal, the longest about four times the length of 

 the shortest. Other characters are given in the synopsis of Phycitinae. 



The following species were examined: Epipaschia superatalis, E. 

 zelleri, Jocara perseella B. & McD,, Tetralopha mUitella, T. floridella, 

 and T. rohustella. 



Pyralidinae. While the structure of the three species of Pyralidi- 

 nae* examined is quite constant, it is almost impossible to find a charac- 

 ter which will distinguish them from Phycitinae as a whole. They will 

 be found in the table of genera of the latter group. In Pyralis farinalis 

 the crochets are biordinal, the shorter ones about one-fourth the length 

 of the others (Fig. 101), but those of Omphalocera dentosa and 0. 

 cariosa are as in the two related subfamilies. In all three species beta 

 is clearly in the caudad row of the setae on the prothoracic shield and 

 is scarcely farther cephalad than delta; the third and fourth ocelli are 

 close together and the fourth out of line; the front extends about half 

 way to vertical triangle and the adfrontals about two-thirds; and the 

 head is about as broad as long. In color Pyralis is pale while the species 

 of Omphalocera are dark with white pinacula. 



*The larva of Hypsopygia costalis, examined since writing the above, agrees 

 with Pyralis with respect to the prolegs, and will trace near to this genus in the key. 



