246 CHKYSIDID^E, ETC., OF GUEKNSEY. 



The Braconidce are very similar insects to the Ichneu- 

 monidce ; there are, however, constant differences in the wings 

 which serve to distinguish them. The Ichneumonidce have two 

 recurrent nerves in the anterior wings, whilst in the Braconidce 

 there is but one. It is believed that all are parasitic. As 

 many as 1,200 specimens have been recorded from a single 

 Lepidopterous larva. Apanteles ylomeratus is well known, 

 being parasitic on the larva? of the Common White Butter- 

 flies. Often in the summer we come across masses of small 

 silky cocoons on our cabbages, these are the pupas of the 

 above-named insect. These little creatures, insignificant as 

 they appear, are the best friends of the gardener and agricul- 

 turist ; they keep in check the countless hordes of caterpillars 

 which, if allowed to multiply, would soon eat up every plant 

 upon the face of the globe. 



In the present list I have not recorded a tithe of the 

 species which will eventually be found to inhabit this island, 

 but the list is the result of several years' collecting. Two 

 species at least are new to Britain, and one is as yet 

 undescribed. 



I am indebted to Mr. Claude Morley, F.E.S., one of the 

 most accomplished students of the order in England, for the 

 names of most of the species in the following list. The 

 nomenclature followed is that of the Rev. T. A. Marshall's 

 catalogue of British Hymenoptera published by the Entomo- 

 logical Society of London. 



chrysidim:. 



Hedyehrum ardens, Ooq. Several specimens taken near Doyle's Column 



and at the Gouffre. 

 Chrysis ignita, Lin. Very abundant. 

 C. Viridula, Lin. Three taken in Talbot Valley. 

 C. bidentata, Lin. One, Saints' Bay valley. 



ichneumonim:. 



Ichneumon line at or, Fab. Several. 



I. mierostietUS, Gr. One fine female. Cliffs near Petit Port. June. 



I. vaginatorius, Lin. Not common. 



I. COnfUSOPiUS, Gr. Not uncommon. 



I. gemellus, Gr. Several taken during June and July on the southern cliffs. 



I. lepidus, Gr. Two specimens, Grande Mare, Vazon. 



I. COnsimilis, Wesm. Two taken at the Gouffre. One near Petit Bot. 



I. protervus, Holmgr. One specimen of this non-British species taken near 



Fort Doyle. 

 ExophaneS exulans, Gr. Not uncommon in July, Moulin Huet, Petit 



Bot and Gouffre. 



