gS BRITISH ICHNEUMONS. 



radix, and often two marks on metanotum, while. Scutellum flat, shining, 

 sparsely punctate ; of ? with erect setae at base only, black, rarely white ; 

 of S white at apex, sometimes with two dots on post-scutellum pale. 

 Abdomen sub-cylindrical, sanguineous-red, closely and finely punctate and 

 strongly nitidulous ; base of petiole and last three segments black ; 9 with 

 basal angles of fifth red, sixth with an apical fascia, and the whole disc of 

 seventh, white ; in S the apex of first segment is usually white, the next 

 two or three entirely castaneous, and the remainder black ; post petiole 

 closely and finely punctate, apically smooth in 3, carinae obsolete in ?, 

 apical angles obtuse, and just beyond them are the sub-obsolete, minute 

 gastrocaeli, which are more distinct, though still small, in <? . Legs stout, 

 black, femora sometimes piceous ; calcaria in 9 , apices of anterior femora, 

 and whole of tibiae, except apices of posterior, red ; anterior tibiae of S 

 partly flavous ; coxae shining, finely and diffusely punctate, with no 

 scopulae, of 3 the anterior at least marked with white ; tarsal claws small ; 

 calcaria of 6 white and base of its hind tibiae pale. Wings slightly 

 clouded ; nervures, stigma and tegulae piceous, this last white in S ; 

 radix whitish ; areolet narrowed above, sides coalescing in 3 . Length, 

 7-8 mm. 



The male much resembles that of B. albicinctus, but the legs are stouter, 

 the tibial band obscure, the cheeks and anus black, no basal impression 

 on second segment and small gastrocaeli ; from its allies, the prominent 

 face, obsolete gastrocaeli, and black scutellum will at once separate the 

 female, which further differs from that of B. chionoinus in its stouter legs, 

 more denticulate epistoma, and unicolorous stigma. 



Bignell took this species at Bickleigh, in Devon, in August ; Piffard 

 a male at Felden as late as 15th September; and I possess a female taken 

 by Mr. ^V. H. Tuck, on flowers of Chaerophylhim^ at Tostock, Suffolk, in 

 June, and a male which I found on Heracleiiin spJwndylium, at Lyndhurst, 

 in August. It occurs throughout N. W. Europe, and has there been bred 

 from Macaria liticrata and Trachea piiiiperda. 



17. bilunulatus, Grav. 



Ichueiinion hilunulatits, Gr. I PI i. 331, ? ; Wesm. Nouv. Mem. Ac. Brux. 1844, 

 p. 98 ; Bill. Ac. Brux. 184S, p 182 ; Holmgr. Ichn. Suec. i. 1S7 ; Thorns. Ann. Soc. 

 Fr. 1888, p. 1 10 ; Bertli. ///'. cit. 1895, P- 249, J 9 . /• sexHiicafiis, Gr. I. E. i. 487 ; 

 Ste. 111. M. vii. 190; Ratz. Ichn. d. Forst. iii. l'j\,S. I. Troscheli, Ratz. lib. cit. i. 

 138 ; ii. 135, i . Var. /. derivator, Wesm. Nouv. Mt^m. Ac. Brux. 1844, p. 92 ; Thoms. 

 Ann. Soc. Fr. 1888, p. no, ? , Barichiieiiinon derivator, Thoms. O. E. xviii. 1963, i 9 . 

 Var. /. procerus, Gr. I. E. i. 550; Ste. 111. M. vii. 196 ; Wesm. M^m. couron. Ac. Belg. 

 1859, p. 65, c5. 



Front tibiae pale ; hind coxae sparsely punctate. Head somewhat 

 buccate, hardly narrowed behind the eyes ; cheeks short, face centrally 

 prominent, clypeus discreted ; black, palpi and part of mouth pale ; 

 vertical lunulae broadly white ; S also with centre of mandibles, internal 

 and genal orbits, and generally sides of clypeus, white. Antennae black ; 

 of ? stout, dilato-compressed and feebly attenuate, white-banded ; of $ 

 not longer than half body, ferrugineous beneath. Thorax black, with 

 pronotum and callosity beneath radix, and another before it in S, white; 

 sternauli distinct ; metanotum with complete upper areae ; areola sub- 

 cordiform, transverse in $, apically emarginate. Scutellum partly white. 

 Abdomen black, not finely and closely punctate ; basal three segments 



