150 BRITISH ICHNEUMONS. 



less elevated than mesonotum, with three upper areae, of which the areola 

 is a little broader than long and only slightly sinuate apically ; c^ with 

 spiracles elongate-oval. Scutellum stramineous; flavousincJ. Abdomen 

 black with segments two and three, often apex of first and base of fourth, 

 red or flavidous ; that of $ with five to seven white-marked, the fifth 

 minutely ; of S lanceolate, apically iiVimaculate ; post-petiole strongly 

 aciculate, carinae distinct ; gastrocaeli normal, the intervening space 

 oblicjuely aciculate ; incisures somewhat deep. Legs black ; ? with tibiae 

 and tarsi red or flavous, hind tibiae tricoloured, puncturation of hind 

 femora coarse ; hind coxae closely punctate, without scopulae ; ^ front 

 femora apically, tarsi and tibiae except apex of hind ones, flavous. Wings 

 flavescent ; stigma fulvous ; tegulae rufescent, flavous in S • Length, 

 10-14 mm. 



The van zona/is has the third abdominal segment black with the an- 

 terior angles only red. 



This species is at once distinguished by both sexes having all the tarsi 

 pale, the mesonotum more strongly punctate and the head a little narrowed 

 behind the eyes ; by the ? having the clypeus shining, sparsely punctate 

 and its apical margin sub-rotund and centrally produced ; and by the c? 

 having the face and clypeus flavous, the former sometimes with the apical 

 margin nigrescent in the centre. 



Taken occasionally in the vicinity of London, in June (Stephens) ; 

 Essex (Harwood) ; captured at Bickleigh, in Devon, at the end of August 

 (Bignell) ; I have taken the female, which hibernates among moss, in 

 the middle of August, at Matley Bog, in the New. Forest, on flowers of 

 A7ii^elica Sy/vestris, in the morning ; and there are examples in Marshall's 

 collection, from Bishop Teignton, Cornworthy and Lustleigh Cleave ; it is 

 distributed throughout Europe. 



42. insidiosus, IVesin. 



Iclniejiuion exfensoriiis, varr. 2 et 3, Gr. I. E. i. 269 (?). /. insidiosus, Wesm. Nouv. 

 IM(5m. Ac. Brux. 1844, p. 46 ; S. v. Voll. Pinac. pi. xx. f. 8, ? ; Ilolmgr. Ichn. Siiec. 

 i. 108; Berth. Ann. Soc. Fr. 1894, p. 611, excl. S ; Thorns. O. E. xviii. 1937 et xxi. 

 2398, 6 9 . Var. /. affcctator, Tisch. Stett. Zeit. 1879; ,■/. Kriech. Ent. Nachr 1894, 9 • 



$ . Head with temples a little narrowed ; cheeks apically smooth and 

 glabrous ; black, frontal and facial orbits usually rufescent. Antennae 

 somewhat thickened centrally, very little attenuate towards apex ; white 

 centrally above only, with joints three and eight occasionally reddish, seven 

 and eight quadrate. Thorax stout, immaculate; areola sub-quadrate, some- 

 times rather broader than long, apically emarginate. Scutellum flat, white. 

 Abdomen broad, black, with segments two, three, and often the sides of 

 the fourth, red, six, seven, and sometimes five obsoletely, white-marked ; 

 post-petiole aciculate, gastrocaeli rather small, the intervening space sub- 

 rugosely punctate, never striate. Legs black ; anterior femora except at 

 base, tibiae and tarsi, red ; hind tibiae and tarsi basally red. Wings a 

 little clouded, stigma fulvous. 



$ . Head broad, slightly narrowed behind the eyes ; mouth, clypeus 

 and face entirely or in part flavous. Antennae black, scape flavous be- 

 neath. Thorax witli pronotum and callosity at radix always flavous. Scu- 

 tellum flavous. Abdomen black ; apex of first, whole of second and third, 



