366 



Head as in Figure 8, retractile and rather small, the permanently 

 retracted portion subpyriform and consisting of a dorsal, rather poor- 

 ly chitinized, arcuate plate, and 4 strong, though slender, rods. Body 

 circular in cross-section; lateral areas limited by an incised line above 

 and below ; thoracic segments tapered anteriorly, anterior margins of 

 all segments with fusiform areas ventrally and a band of locomotor 

 setulae round the entire margin; apical segment (Fig. 11) with 4 

 large flattened, pointed protuberances, which have on their lateral 

 margins a poorly developed process and between the upper and lower 

 pairs a distinct tooth-like projection; each of the large protuberances 

 with a long hair on inner surface near apex; spiracles large, round, 

 situated near base on under side of upper pair of processes. 



Pupa (PI. LII, Fig. 7). — Length, 14-17 mm. Brown. Head with- 

 out thorns ; a pair of small warts above bases of antennae, the latter 

 slightly elevated ; cephalic capsule with a distinct wart, bearing a 

 strong hair, just above each eye. Thoracic spiracles in the form of 

 elevated, rough, wart-like protuberances, the opening linear; an area 

 on anterior margin close to median line elevated in the form of an 

 irregularly rugose wart ; prothorax separated from mesothorax by an 

 incised line which is not very distinct. Wings short, extending to 

 apex of first ventral abdominal segment ; legs short, apices of fore 

 tarsi not reaching apices of wings, those of mid tarsi reaching them, 

 and those of hind pair extending beyond them but curved inward so 

 that they do not surpass the basal third of second abdominal segment. 

 Abdomen more than twice as long as thorax, very slightly tapered 

 apically; lateral areas defined by means of a line of punctures above 

 and below ; spiracles elevated, appearing like sharp vertical ridges ; 

 armature consisting of a girdle of stout, flattened spines near posterior 

 margin of each segment from 2 to 7, the strength of the spines in- 

 creasing slightlv posteriorly; apical segment with 8 spines, 3 on each 

 side, beginning at middle of side and extending upward, and 2 on ven- 

 tral margin close together (Fig. 13). 



The foregoing descriptions were made from specimens obtained at 

 Cottonwood Grove, near Urbana, 111., in April, 19 16. One example 

 obtained April 23, pupated May 9, and emerged May 25. 



The specimens were found in the earth under leaves, and more 

 commonly in slight depressions or under rotten wood where there was 

 considerable dampness and a number of other insect larvae and 

 worms. 



A white nematode was found as an internal parasite. Hine has 

 recorded the finding of the larva and pupa of this species in Ohio. 



