Report of the State Entomologist. 155 



timothy, and' rye, but had not been reared from its food-plant. Pro- 

 fessor Riley has given it the manuscript name of Isosoma captivum and 

 will shortly give description and illustration of it. 



From the straw received from Mr. Boyd in September of 1887, and kept 

 during the winter in a paper box, none of the insects were obtained. 

 A few of the cells — less than a half-dozen, had given out the imago, 

 but they had escaped from the box. The larger number of the cells 

 show at the j)resent time, invariably at the upper end, the black head 

 of the dead insect within the open round hole that had been eaten 

 for its escape; in the remainder, a blackish spot indicates the head 

 beneath the thin film of straw covering it. The death of nearly all 

 the insects was doubtless the consequence of the straw having been 

 kept for three months longer than in the other instance, within a 

 warm room. The straw was badly infested. In one piece — within 

 two inches of the joint, eleven cells were counted — six open and five 

 closed.* 



No parasites were obtained from the straw. 



Thalessa lunator (Fabr.). 



The Lunated Long-Sting. 



(Ord. Hymenoptera: Fam. Ichneumonidje.) 



Ichneumon lunator Fabricius : Spec. Ins., 1,1781, p. 430, No. 61; Mant. Ins., 



i, 1787, p. 266, No. 76: "Ent. Syst., ii, p. 162." 

 Pimpla lunator Harris: Treat. Ins. N.,Engl., 1852, p. 427; Ins. Inj. Veg., 

 1862, p. 538, fig. 251 (reference to). 

 " " Glover: in Eept. Com. Agri. for 1866, p. 41 (brief mention). 



" " Walsh-Eiley : in Amer. Entomol., i, 1868, p. 59 ; id., ii, 1870, 



p. 96 (as Bhijssa.) 

 Bhyssa " Packard : Guide Stud. Ins., 1869, p. 196, fig. 128, of male. 

 Thalessa " Oresson: in Trans. Am. Ent. Soc, iii, 1879, p. 169; Synop, 



Hymenop. N. A., 1887, p. 215 (in list). 

 Bhyssa " Quay: in Amer. Entomol., iii, 1880, p. 219 (oviposition). 

 Fletcher: in 11th Eept. Ent. Soc. Ont. for 1880, p. 67 (brief 

 notice). 

 " " Harrington : in Canad. Entomol., xiv, 1882, p. 82 ; the same 



in 13th Eept. Ent. Soc. Ont. for 1882, pp. 23-25. 

 " Clarkson: in Canad. Entomol., xiv, 1882, p. 223; in Bull. 

 Brook. Entomolog. Soc, vii, 1885, p. 124 (oviposition). 

 " " EiLEY : in Science, iv, 1884, p. 486 (not lignivorous) ; in Bull, 



Brook. Entomolog. Soc, vii, 1885, p. 123. 



* These were subseauently opened with a knife and a perfect imago removed from 

 each, three only of which were males ; all were Isosoma captivum. 



