ICHNEUMONID.E. 121 



The 4th segment of the abdomen is sometimes dusky^ or fuscous above • and 



the male wants the white ring on the posterior tarsi. 



Taken in several places within the metropolitan district, as in 

 Eattersea fields, Barnes Common, Darenth and Coombe woods, &c.; 

 also at Rochester, near Bristol, and in Norfolk, towards the end of 

 June. 



Sp. 2. assectator. Nigris, ahdomine segmento 2-do, 3~tio, 4<-toque latere riifis, 

 pedibus piceo-nigris, tihiis bast albidis. (Long. corp. S 4 — 6 lin.; ? ovip. incL 

 8—9 lin.; Exp. Alar. 6— 6ilin.) 



Te. assectator. Linne. — Fee. assectator. Steph. Catal. 343. No. 4007 Curtis, 



V. ix. pi. 423. 



Dull- or pitchy-black, with a slight silken pile: head and thorax very- 

 minutely punctured, and the latter with coarse punctures ; abdomen with 

 an indistinct reddish fascia on the 2nd, 3rd, and 4th segments, most distinct 

 on the sides ; ovipositor less than half the length of the abdomen ; legs dull 

 or pitchy-black, with a pale ring at or near the base of the tibise ; tarsi 

 slightly rufescent. 

 Less abundant than the last: found at Besselfs green, near 



Darenth wood, in the Isle of Wight, Devonshire, &c. about the end 



of June. 



Family V.— ICHNEUMONIDiE,* Leach. 



Abdomen attached to the thorax by a part of its transverse diameter : antennce 

 filiform or setaceous, consisting of from 15 to 50 articulations, or upwards: 



* The arrival at this point of my subject allows me the opportunity of 

 introducing some remarks upon the general nature of these Illustrations. It 

 will be seen, upon a reference to the Introduction in my 1st vol., that I there 

 state it to be my intention to introduce into these pages all the species that 

 had previously been recorded as British, placing such as appeared, from my 

 experience, to have been improperly, or accidentally, introduced at the bottom 

 of the page; but, with regard to the group now under consideration, I must 

 depart from that resolution, as, for some untenable reason, all the species 

 contained in Gravenhorst's Ichneumonologia Europaea were for a period of at 

 least 2 years given to the world as indigenous ; I shall therefore merely intro- 

 duce those species only which I have ascertained, with considerable labour, to 

 be really found in this country, following Gravenhorst's arrangement, with 

 one or two very trifling alterations ; as, from the vastness of modern entomo- 

 logical science — my own collection now verging upon 100,000 specimens — I 

 am not ashamed to acknowledge my ignorance of this and some other groups 

 that have within these few years been extensively investigated by others; it 



