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VI. Some Account of a new Species of Eulophus Geoffioy. 

 By the Rev. miliam Kirbij, M.A. F.R S. aiid L.S. 



Redd December 17, 1822. 



Having had an opportunity of observing some part of the pro- 

 ceedings of a new species of that singular tribe of parasitic 

 Hymenoptera, of which GeofFroy, on account of the branched 

 antennae of the male, has constituted a genus under the name of 

 Eulophus, I flatter myself that the observations I have made will 

 not be unacceptable to the Linnean Society. 



Geoftroy's original species (E.pectinicornis) was found by him 

 upon the leaves of the lime-tree* ; but De Geer obtained it from 

 the caterpillar, which it infests, that namely of a Bombyx related 

 to B. Anastomosis'^ . The same illustrious entomologist, from a 

 little subcutaneous larva, which mines its tortuous galleries in 

 the leaf of the oak, procured a second species {E. ramicornis)%. 

 That which I am about to describe consoled me for my disap- 

 pointment in not bringing to perfection a caterpillar which I 

 found upon the hazel, and which nearly, but not altogether, 

 resembled that of Bomby.v camelina. This caterpillar, which 1 

 took on the twelfth of last July, had sixteen legs, the membra- 

 naceous ones or prolegs being armed with a semi-coronet of 

 hooks. It was green, with two lateral pale-yellow longitudinal 

 stripes, the spiracles or breathing-pores being in the lower one. 

 On its last segment but two, which was gibbous, it was armed with 



* Hist. Ins. Par. ii. 313. f Mem. Sfc. ii. 319. t. iv./. 22—24. J Ibid. i. 388. 



a pair 



