136 BRITISH ICHNEUMONS. 



tibiae flavidous, often black before the apex ; tarsi fulvescent, apically 

 darker ; intermediate tibiae almost invariably with a black streak internally 

 at the apex ; hind femora and apex of tibiae black, their tarsi basally 

 stramineous. Wings yellowish-hyaline, stigma fulvous ; tegulae reddish, 

 margined in 3 with flavous. Length, 12-16 mm. 



The ? of this species is easily distinguished by the small l)ut constant 

 coxal tufts, the hardly attenuate antennal ape*x, the basally dirty-red pos- 

 terior femora which are closely punctate without but have a smooth edge 

 below, the sometimes apically fuscous posterior tarsi, as well as by the red 

 anterior knees and tibiae, of which the latter are somewhat spinulose and 

 the posterior pair apically black, by the antennal band, depressed scutellum 

 and only two whitish anal marks. The 3 much resembles that of /. macro- 

 cerus, but the head is less narrowed behind the eyes, the intermediate 

 tibiae nearly always have a black internal apical line, the scutellum is less 

 pulvinate and less flavous, and, moreover, the apically rounded clypeus 

 and the face are not entirely flavous, and the flagellum is obscurely ferru- 

 gineous below. 



From /. buccukniiis and_ /. suspiciosus the apically blackish posterior 

 tarsi, strongly flavous scutellum and the pale under-side of the flagellum 

 render it distinct. While from /. graciktiius it may be known by the 

 colour of the posterior legs and by the larger thyridii ; {cf. also Kriech. 

 Ent. Nachr. 1887, p. 9 ; i88g, p. 286 ; et 1896, pp. 355 et 99). 



/. snba7i7iulatus^ Grav., Marshall considered a variety of this species ; it 

 appears, however, to be very distinct in having the cribrary organs and 

 face entirely flavous, and less so in joints fourteen to sixteen of the an- 

 tennae being fulvous with a fuscous spot beneath. 



Wesmael's curious gynandromorphous insect had the head and thorax 

 with their organs of the $ , while the abdomen with its genital appendages 

 were those of the $ ; Tischbein describes and figures (Stett. Zeit. xxii. 

 p. 428, pi. i. f. 3) a polymelian example of the male which has two well- 

 developed tarsi, each bearing the normal five joints, but one with only a 

 single claw, on the right hind tibia which is one-sixth shorter than the 

 normal left-hand one. 



This is doubtless one of our commonest species; it is abundant through- 

 out Europe. Gravenhorst, who says this species is the Sj>hex anrmlaris 

 of Poda (1761), records the female from Netley, and says it hibernates 

 beneath moss and bark of trees, and is found on umbels in summer; 

 Holmgren tells us it is found in woods, gardens and meadows. Stephens, 

 whose I. luctatorhis probably covers more than one species, records it from 

 Darenth Wood, etc., in June ; it is common in Norfolk and Essex ; Bignell 

 took the female, at Bickleigh, in Devon, early in March, and Pickard- 

 Cambridge, in Dorset, among debris (Entom. 1881, p. 137). I have 

 found the females commonly at the roots of Aira caespitosa during the 

 winter, from November to the end of April, at Brede, Guestling, Battle 

 and Westfield near Hastings and in the Bentley Woods, as well as hiber- 

 nating beneath the bark of rotten alder stumps, at Foxhall, near Ipswich ; 

 flying among long grass at midday early in July, at Oxshott ; Golspie, in 

 Sutherland, early in August. 



It w^ould appear to confine its parasitism to Rhopalocera, since the only 

 records of which I am aware are from Vanessa polychloros, V. uriicae, 

 Satyrus Janifa, and the continental Polyoinmaius Circe and Lycaena 

 Cyllariis ; although Parfitt (Ichn. of Devon) says it is parasitic on Tri- 



