48 BRITISH ICHNEUMONS. [Perithous. 



black; apex and before base of the hind tibiae and apices of the posterior 

 tarsal joints distinctly infuscate. Wings hyaline; stigma piceous or stra- 

 mineous ; radix and tegulae whitish ; areolet sessile and irregular. Length, 

 6^ — 10 mm. 



This is a somewhat more slender species than its congeners. It is very 

 like P. fiicdiator, but averages smaller and more slender, with the clypeus 

 less depressed and hardly emarginate apically; the 9 abdomen is more 

 closely and distinctly punctate, with the first segment a little more con- 

 stricted basall}^ the prothorax always white and the metathorax dull ; the 

 last ventral segment of the ^ is apically narrower and not obtusely 

 rounded, the legs are slightly paler with the hind coxae nearly always in 

 part black; the wings are also said to be more clearly hvaline, with the 

 areolet more broadly open. 



P. variiis does not appear to be a very common species in Britain, 

 though it has been bred at Dover in July by Sladen, Bristol in May by 

 Charbonnier, by Bignell in South Devon, and by Beaumont ( E.M.M. 

 1895, p. 281) at Blackheath from a dead maple branch, together with 

 Pemphredon lugiibn's, P. ///on'o, Hotnalus auratus, etc. It has been cap- 

 tured by Tuck at Bury St. Edmunds, Tostock and Chippenham Fen, in 

 Cambs.; several at Holgate, Yorks, in 1881 (Yorks. Nat. 1882, p. 108) ; 

 and I have taken it flying to a post at Great Bealings, in Suffolk, at the 

 end of July. Mr. Billups' record of several of this species having been 

 raised from Eupithecia absinthiata {cf. Proc. S. Lond. Soc. 1896, p. 85) is 

 probably an error, 



4. divinator, Rossi. 



Ichneumon divinator, Rossi, F. E. ii. 48, ? . Ephialtes divinator, Gr. I. F iii. 

 252, 3 ? . Ichneninon histrio, Panz. F. G. xcii. 7. 



Head with the mouth and, in J, whole face flavidous; 9 ^^'ith the 

 internal orbits, and generally a transverse line beneath the strobes, whit- 

 ish; (J clypeus verv strongly deflexed apically. Antennae rather longer 

 than half the body, infuscate ; scape white, and flagellum pale or ferrugin- 

 eous, beneath. Thorax black, with mesothorax red; margin of propleurae 

 usually flavescent ; a line before and a smaller one beneath the radix, a 

 callosity beneath the hind wings and a more or less distinct arcuate line 

 in the petiolar area, pale flavous. Scutellum red, with its apex and the 

 postscutellum flavous. Abdomen as broad as and nearly thrice longer 

 than the thorax, of $ subcylindrical, of 9 with the five basal segments 

 gradually a little explanate ; all the segments, sometimes narrowly, white- 

 margined or rarely the first and fourth or fifth to seventh immaculate ; 

 terebra as long as, though hardly longer than, the abdomen, black with 

 the spicula red. Legs red or fulvous with the hind tibiae, which in ^ 

 are pale stramineous, externally at the apex and before the base infuscate ; 

 all the claws and apices of the hind tarsal joints, or nearly the whole of 

 the hind tarsi, infuscate. Wings hyaline ; stigma piceous or, like the 

 radix and tegulae, stramineous ; areolet sessile and subirregular. Length. 

 6| — 10 mm. 



Of the size and proportion of P. nitdiator and with the internal cubital 

 ner\'ure similarly conformed, but with the terebra and antennae shorter, 

 and the latter a little stouter; the very strongly depressed clypeus will at 

 once distinguish the J . 



