Insects. 7087 



/. Brevicinctor. ( Vide Dr. Emmon's * Agviculture of New York,' 

 Part Insects, 193). Montreal, July. 



Trogus exesorius, Serv. In September, 1850, I obtained seven 

 larvae of the black swallow-tail butterfly {Papilio Asterias) feeding on 

 parsley and other umbelliferous plants, in a garden at Montreal, which 

 duly became pupae ; but during the following winter, to ray great annoy- 

 ance, ever}' one of them produced a specimen of this parasite. The 

 breeding-cage which contained the pupae having been kept in a warm 

 room, the ichneumons were evolved as early as January and February. 

 In its natural state I have taken this Trogus flying in September, but 

 there are probably two broods of it in the season, as there are of its 

 victim, Papilio Asterias, the larva of which, according to Professor 

 Kirtland, is known in Ohio as the " fennel worm," and is ocasionally 

 destructive to the crops of fennel and dill in that state. 



T. Obsidian at or, Fabr. This large and handsome species is common 

 about Montreal, in July. The sunflower {Helianthus anmms) is much 

 frequented by this and other ichneumons, and in England I have 

 observed many species to be equally partial to the Jerusalem arti- 

 choke {H. iuberosus). 



Cryptus ? (Figured, but not named, in Dr. Emmon's 



* Agriculture of New York,' Part Insects, pi. 27, f. 11). Common in 

 July and August on the heads of wild parsnip [Pastinaca sativa) and 

 golden rod {Solidago), plants which overrun the grass-fields about 

 Montreal. 



Lampronota ? (Figured, but not named, in Dr. Emmon's 



'Agriculture of New York,' Part Insects, pi. 7, f. 12). "Very abundant 

 I with the last species about Montreal, and I have observed it north of 

 j the Ottawa. 



Pimpla ? I have bred a species very like our English 



' P. Instigator from cocoons of the " muflf-moth " {Lophocampa Cary<B, 

 Harris ; Halesidota fulvojlava, Walker). It makes its appearance in 

 May and June. 



Pimpla ? A species allied to the English P. turionella, 



which is very abundant in July, I have bred from cocoons of the 

 " American lackey-moth " {CUsiocampa americana, Harris), so 

 destructive to the foliage of the trees about Montreal, and there 

 popularly termed " Montreal Blight." 



Rhyasa Lunaior, Fabr. This magnificent ichneumon is numerous 

 on Montreal Mountain in August and the beginning of September. 

 The females are easily captured when ovipositing in some stump or 

 dead tree, for they work their ovipositors so deeply into the wood that 



