30 [J TILT 



Arhopalus p ictus, Drurij. — Also inhabits the Hickory. Its excava- 

 tions are immediately subcortical. Unlike the (Jlijtua^ its course is not 

 in a line, but it bores in every direction, making extensive excavations. 



Its borings are coarse and saw-dust like, and are packed with consider- 

 able firmness. When about to become pupa, the larva bores for a slight 

 depth into the wood, and for a distance of about three inches. The ap- 

 erture is closed with some very coarse splinter-like borings, and after 

 having turned its head in the direction of its previous subcortical dwell- 

 ing, it undergoes its transformation, and requires about two and scmie- 

 times three weeks for becoming a perfect insect. 



Rhagium 1 i n e a t um, Oliv. — Inhabits pine stumps, under the bark 

 of which it lives. It may be taken in abundance in early spring. 



I have never observed the larva, though when about to transform, it 

 places circularly around itself coarse borings, forming a sort of nest. 



The time required for development is not known. 



Leptura nitens, Forst. — The larva and pupa of this insect, inhabit 

 the Black Oak. I have never observed either. 



Callidium v a r i a b i 1 e , Linn. — The larva of this insect may be found 

 in early spring, under the bark of White Oak logs and stumps. 



Its habits are similar to the Arltopalus. The pupa requires a week or 

 ten days for becoming a perfect insect. 



Callidium varium , Fair. — Is found with the preceding. The lar- 

 va? and pupfe resemble that of the ( '. variablle very closely. 



Synchroa punctata, Ncirm. — The pupa only, has been observed. 



One specimen of the imago with four pupfe, were taken by myself dur- 

 ing the third week of May. They live in rotten Oak stumps, thriving 

 best in the White. The pupa requires about one week to perfect itself. 



Centronopus calcaratus, Fahr. — Inhabits Black Oak stumps. 

 The larva grows with rapidity. It remains in pupa two weeks, and 

 requires four or five days to gain its dark color. 



Centronopus a nth r acinus, Knoch. — May be taken in company 

 with the latter insect. The larvae and pupae of both species resemble 

 each other very closely. The time re({uired for the development of this 

 species is rather shorter than that of C. calcaidtus. 



