Vol. Xxiv] ENTOMOLOGICAL NEWS 195 



Fragments on North American Insects — IV. 



By A. A. GiRAULT, Nelson (Cairns), North Queensland, 

 Australia. 



1. Duration of the Pupal Stadium of Lucanus placidus (Col.) 



A nearly grown grub of this beetle was found just under the 

 surface of the ground at the base of a stump at Blacksburg, 

 Virginia, July lo, 1902. It was suitably confined, formed the 

 prepupa about August i, pupated on August 3 and became adult 

 not until the sixth of October. It was not fed and died on Oc- 

 tober 21. 



2. Asymmetry in Telea polyphemus Cramer (Lep.) 



Two hundred and thirty-five eggs were deposited by a fe- 

 male of this species captured August 7, 1902, at Blacksburg, 

 Mrginia. A full-grown caterpillar taken from an oak tree on 

 August 26 had the spiracle on the left side of the eighth ab- 

 dominal segment missing, being replaced by a wartlike protub- 

 erance. Also, on the same side of the meson, in the lateral as- 

 pect, there were only seven of the oblique yellow stripes pres- 

 ent, while eight were on the opposite side; the missing stripe 

 was correlated with the missing spiracle : to complete the sym- 

 metry there should have been a stripe on the eighth abdominal 

 segment. This caterpillar appeared to be parasitized, since 

 there were present also several black-rimmed holes on one of the 

 thoracic segments. 



3. Duration of Egg Stage of Prionoxystus robiniae (Lep.). 



Nine eggs deposited by a female captured at light, late P. M., June 

 2, 1902, hatched late P. M., June 17. 1902. or after about fifteen days. 

 The larvae refused foliage of all kinds, but accepted twigs of locust. 

 Blacksburg, Virginia. 



4. Epargyreus tityrus (Lep.) 

 The caterpillars of this butterfly were very abundant at An- 

 napolis, iMaryland, during the latter part of September, 1902, 

 on locust. They live singly in a cocoon-like shelter formed by 

 tying together two leaves, ^^'hen feeding they leave the shel- 

 ter and this is usually done at night, though in the day an oc- 

 casional larva may be seen crawling about. From several lar- 



