36 ROEBUCK : ON YORKSHIRE ICHNEUMONIDiE. 



" naming small obscure specimens unless neatly displayed upon 

 " cards. As to running pins through the thorax or scutellum, 

 "obliterating the most characteristic parts of the body, it is 

 "generally throwing away all chance of identification. When a 

 " small insect of this kind is carded, the legs should be stretched 

 "sufficiently to allow a side glance at the coxae, which are often 

 " important, and if the head is prevented from resting forehead 

 " downwards on the card, so that the face can be seen, the 

 "maximum of convenience will be attained." Mr. Bridgman (Ent. 

 Feb. 1878, xi. 34) in speaking of carding small species, recom- 

 mends that a small hole be cut in the card, over which should be 

 placed the head, in order to allow of the inspection of the mouth 

 and antennse beneath, which are important characteristic points. 

 Very minute species are best preserved by the method adopted 

 by Haliday and Walker: the contents of the collecting-boxes being 

 shaken into a vessel of hot water, by which means the wings are 

 naturally expanded. They are taken out by inserting a card under 

 them, and the legs and wings are arranged as required with a 

 camel-hair brush : then left till dry, when the specimens can be 

 removed with a penknife, and gummed upon the points of stiff 

 card braces. Some of the species of Pezo7nacJius, of which the 

 females are apterous and resemble small ants, may be bred from 

 spiders' nests. 



I am indebted to the kindness of the Rev. T. A. Marshall, 

 M.A., F.L.S., of St. Mary's Rectory, Antigua, who formerly 

 resided for a year or two at Lastingham, near Pickering, Yorkshire, 

 for a list of Ichneumonidae and Braconidae, in which he has 

 marked all the species which he knows certainly to have been 

 taken in Yorkshire. These species are recorded for "Yorkshire " in 

 the catalogue given below, and the presumption as to exact 

 locality will be that they occurred at or near Lastingham. 



I am also indebted to Mr. S. D. Bairstow of Huddersfield 

 for information and assistance. He is taking up the study of the 

 Ichneumonidse (taking the word in the Linnean sense) and will 

 write the future reports to the Section on that group. He will 

 be glad of all the assistance that members will give him, and to 



Trans. Y.N U., 1877. Series D 



