2l6 BRITISH ICHNEUMONS. 



(7). 6. Clypeus closely and strongly punctate ; gas- 



tiocaeli normal 3. TORVUS, Wesm. 



(6). 7. Clypeus sparsely and obsolctely punctate ; 



gastrocaeli small 4. TRISTIS, Grav. 



(5). 8. Apophyses wanting ; antennae mainly red, at 



least basally 5. rufipes, 5/^/^. 



I. dirus, Wesm. 



Ichneumon tristis, Gr. I. E. i. 137, excl. "cj." Eitrylahus (h'rus, Wefim. Bui. Ac. 

 Brux. 1853, p. 307, <5 ; /^/'. c/^. 1857, p. 406 ; Holmgr. Ichn. Suec. ii. 302 ; Thorns. O. 

 E. xix. 2102 ; Berth. Ann. Soc. Fr. 1896, p. 310, 6 ?. 



A very broad, closely punctate and somewhat dull species. Head 

 black, temples very strongly buccate and broader than the eyes ; clypeus 

 strongly porrect, forming an angle with the centrally prominent face, 

 coarsely punctate and apically broadly rounded ; occiput depressed and 

 centrally canaliculate ; ^ with maxillary palpi apically ferrugineous. An- 

 tennae black ; apically attenuate. Thorax black, stout ; metanotum 

 scabriculous, dull, posteriorly obliquely truncate ; areola transverse, costae 

 strong ; costulae wanting ; apophyses short, obtuse ; spiracles linear. 

 Scutellum black, strongly convex, carinae extending to its centre ; post- 

 scutellum also strongly convex. Abdomen of $ ovate, of 3 elliptic, 

 black ; segments two and three dull, of c? narrowly red-margined ; post- 

 petiole bicarinate, more or less roughly shagreened, broad, deplanate, sub- 

 marginate, its spiracles large and oval ; gastrocaeli normal, deep and nearly 

 as broad as the rugose intervening space ; ventral segments one to four 

 plicate. Legs stout, hind tibiae and tarsi distinctly incrassate ; red, with 

 coxae, trochanters, hind tibiae except basally, and their tarsi, black ; hind 

 coxae, at least of $ , not contiguous with the intermediate, and minutely 

 dentate above. Wings hyaline, stigma red or piceous ; areolet deltoid, 

 externally produced, coalesced above ; tegulae and radix black. Length, 

 15-16 mm. 



The broad abdomen, stout legs and reflexed clypeus will at once indicate 

 this distinct species, which probably merits generic rank. 



Hope first took this insect, at Netley, and it was subsequently, as recorded 

 by Wesmael, taken near London, by Desvignes. It is in all probability 

 commoner with us than is at present supposed. Bignell has taken it, at 

 Bickleigh, in Devon, early in June ; Carr, at Treswell, in Notts., in the 

 middle of July ; Fitch, at Maldon, in Essex ; and Thornley has given me 

 two fine females, captured at South Leverton, in Notts., during August. 

 On the Continent it is of very wide distribution, extending to Algeria. It 

 has been bred from Trichiura crataegi, and several times in Britain from 

 Eriogasier lanestris. Mr. T. Wilson (Yorks. Nat. 18S1, p. 153) bred this 

 species, at Holgate, near York. 



2. larvatus, Christ. 



Ichneumon Vinulator, Geer, Mdm. i. 580. E. Viimlator, Thorns. O. E. xix. 2102. 

 /. larvatus, Christ, Hym. 348, pi. xxxv. f. 5 ; Gr. I. E. i. 160. Eitrylahus larvatus, 

 Wesm. Bill. Ac. Brux. 1857, p. 406 ; Ilolmgr. Ichn. Suec. ii. 303, 9 ; Berth. Ann Soc, 

 Fr. 1896, p. 307, (J 9. Mischophorus Jlavosignatiis, Kriech. Ichn. nov. Mus. Hung. 

 1894, i . Var. E. iutrepidns, Wesm. Bui. Ac. Brux. 1855, p. 410, 9 . 



Head sub-cubical, black, quadrate anteriorly and not narrowed behind 

 the eyes \ of $ with cheeks and temples strongly dilated and the vertex 



