156 1CHXEUMOX1D.E. 



apex with an oblique slope ; the sides rather acute at the top. 

 A large square spot on the scutellum and a long one on the post- 

 scutellum yellow. Abdomen entirely black ; shining, impunctate ; 

 the petiole at the base depressed in the middle ; oblique ; its top 

 somewhat triangularly, its sides much more widely, depressed ; 

 gastrocoeli oblique, smooth, raised in the centre ; and from them 

 an oblique furrow leads to the apex of the [second] segment ; 

 the oblique furrows on the third segment moderately deep and 

 wide ; on the fourth they are shallower. Legs almost bare ; the 

 fore trochanters beneath and at the apex all round, yellow. 

 AVings fulvo-hyaliue ; the stigma testaceous in the middle ; the 

 tegulae black." 



Length 113 millim. 



CEYLON. 



Type in the Oxford Museum. 



The above description of Cameron's, though poor, is sufficient 

 to show that this female is closely allied to his Pimpla poesia, 

 which I consider nothing but au Oriental form of P. instigator, F. 

 Therefrom P. taprobance may be at once known by the obsoletely 

 punctate abdomen and pleura?, in which it resembles the genus 

 llieronia ; the curiously and stoutly bituberculate basal segment- 

 is distinct from that of any other species of this genus known 

 to me. 



102. Pimpla instigator, F. 



Ichneumon instigator, Fabricius, Eut. Syst. ii, 1793, p. 164 ( $ ) ; 



Panzer, Schaef. Ic. pi. cv, 1804, fig. 5 (rf). 

 Cryptus instigator. Fabriciu.s, Piez. 1804, p. 85. 

 Si rex spectrum, Donovan, Brit. Ins. vii, pi. 225, figs. 1 & '2 ( $ ) ; 



cf. Stephens, 111. Man. vii, p. 880. 

 Pimpla instigator, Graveuhorst, Ichn. Eur. iii, p. 216; Curtis, 



Brit. Ent. pi. ccxiv, figs. 1-5 ; Zetterstedt, Ins. Lapp. p. 375 ; 



Ratzeburg, Ichn. Forst. i, p. 886 ; id., iii, p. 99, pi. iv, fig. 1 ; 



Curtis, Farm Ins. p. 99 ; Holmgren, Sv. Ak. Haudl. 1854, p. 87 ; 



id., op. cit. 1860, n. 10, p. 18: Tascheuberg, Zeits. Ges. Nat. 1863, 



pp. 52 & 2G1 ; Thomson, Opr Ent. viii, p. 74(5 & xiii, p. 1408 ; 



Schmiedeknecht, Zool. Jahrb. 1888, p. 470 ( rf $ ). 

 Var. P. intermedia, Holmgren, Sv. Ak. Haudl. 1860, n. 10, p. 19 



(<m 



Tar. P. processioned, Ratzeburg, op. cit. iii, p. 101 (d) ; cf. Tos- 



quinet, Ann. Soc. Ent. Belg. 1897, p. 283. 

 Var. P. poesia, Cameron, Manch. Mem. 1899, p. 176 ($). 



c? . A black species, with only the femora and the tibiae red. 

 Head transverse, somewhat short and strongly narrowed behind 

 the eyes ; frons concave and subexcavate, transversely aciculate, 

 with a longitudinal central impressed line ; clypeus basally elevated, 

 strongly depressed towards the glabrous and subtruncate apex; 

 yes oblong-ovate and slightly emarginate next the scrobes; face 

 strongly and evenly punctate, with long black pilosity, centrally 

 convex, with a longitudinal and often subglabrous line; man- 

 dibles stout and coarsely punctate, margined below ; palpi of <$ 



