367 



The range of the species is from the Mississippi eastward ; it is com- 

 mon in Illinois. 



Chrysopila quadrat a Say 



Leptis quadrat a Say, Jour. Acad. Nat. Sci. Phila., Vol. 3, 1823, p. 35. 



Larva. — Similar in general appearance to the larva of ornata, but 

 differing noticeably in size, its length being only about io mm. The 

 other principal distinction lies in the structure of the apical abdominal 

 segment, which is as shown in Figure 12, Plate LII. 



Pupa. — Very similar in structure to ornata. The abdominal 

 spiracles are much smaller, however, and the apical segment has in 

 addition to the 8 long spines borne by ornata several smaller ones, as 

 shown in Figure 14. 



The foregoing descriptions were made from specimens obtained 

 at Cottonwood Grove, near Urbana, 111., April 23, 191 6. The larvae 

 occurred along with those of ornata under a decaying log. The 

 imagines emerged May 30 and 31. 



Chrysopila sp. 



I have before me the larva of a third species of this genus. It is 

 12 mm. in length, and differs from quadrata in having the apex of 

 the abdomen with well-defined lateral processes on both the upper and 

 lower protuberances (Fig. 9). 



This larva was found under fallen leaves at Charleston, 111., 

 August 22, 19 10. It is almost certainly not full-grown, for taken so 

 late in summer it would doubtless have remained in the larval stage 

 till May of the next year. 



Chrysopila folda Loew 



Chrysopila foeda Loew, Berl. Ent. Zeitschr., 1861, p. 317. 



The larva and pupa of this species were described by Coquillett 

 in 1883*. The descriptions present no characters that enable me to 

 distinguish the larva and pupa from those which I have before me. 



Leptis Fabricius 



I have not seen the larva of any species of this genus. 



I consider the species figured by Banks as Anthomyia sp., Fig. 117 

 in his paper on dipterous larvaef, as probably belonging to Leptis — 

 certainly not to Anthomyia. 



*Can. Ent., Vol. 15, p. 112. 



tThe Structure of certain Dipterous Larvae, with particular Reference to those 

 in Human Foods. Tech. Ser., No. 22, Bur. Ent,, IT. S. Dept. Agr., PI. VI. (1912) 



