108 [May, 



(62) 57 Palpi pale. 



(59) 58 Abdomen nearly entirely black 26. colpophorus, Wesm. 



(58) 59 Abdomen broadly red. 



(61) 60 Terebra as long a8 abdomen ; J' , all segments infuseate... 



27. dlscolclalis, Wesm. 



(60) 61 Terebra one-filth of abdomen ; J' segments 3 — 5 red... 



28. regularis, Wesm. 

 (57) 62 Palpi black or nigrescent. 



(64) 63 Legs mainly testaceous 30. /ereSeZ/a, Wesm. 



(63) 64- Legs black, only base oi" tibiae pale. 



(66) 65 Abdomen mainly pale 31. uar/'z^or, Nees. 



(65) 66 Abdomen with at most two basal segments laterally pale. 



(70) 67 Terebra shorter than abdomen. 



(69) 6S Length, 2 — 3 mm.; antennae 25 — 28 jointed ,32. o/iCM^a^or, Nees. 



(68) 69 Length, 1 — 2 mm.; antennae 20 — 23 jointed 33. ohscurator, l^lees. 



(67) 70 Terebra longer than abdomen. 



(72) 71 Antennae 18— 23-joinled ; terebra as long as abdomen and thorax... 



34. anUir acinus, Nees. 



(71) 72 Antennae 15 — 19-jointed ; terebra longer than body. ..35. a^ra^or, Nees. 

 B. degeneratur, Marsh., Brit. Mon., is later synonymized with B . osculalor ; 



and. the same author's B. otiosus is considered by him (Bracon. d'Europ., i, 150) 

 to be synonymous with B. bipartitus, Wesm., whicli is only known from Kngland 

 and Belgium, and differs from B. terebelia in having the abdomen, with the 

 exception of the basal segment, entirely testaceous. 



I have at various times, while collecting Iclmeumonidce both in 

 the field and from correspondents, obtained numerous specimens of 

 this genus ; these 1 have recently had an opportunity of examining, 

 and fihd they consist of a hundred and thirty-seven specimens, re- 

 presenting twenty-four species, of which Bracon abcissor, Nees, is 

 new to the British fauna. 



B. pectoralis. — Herts (Albert Piffard) ; bred from a thistle-head at Locarno ; and 



bred at Hy^res, pi-obably from a species of Bruchus (Dr. T. A. Chapman). 

 B. lastus.— One female, with thorax entirely black, Dorking, in mid-August (E. A. 



Butler). 

 B. minutator. — 8vifio\k (W. H. Tuck) ; Surrey (Dr. Capron and Wilson Saunders) ; 



2 ? 9 and 3 S S bred from [? Urophora cardui, in] heads of Carduus ar- 



vensis, August, 1905 (J. E. Collin). 

 B.fulvipes.-Sn&olk (E. C. Bedwell and C. M.) ; Blackheath (A. Beaumont) ; 



Surrey (Capron) ; Hants (C. M.). 

 B. variegator. — Rerts, common (Piffard) ; Surrey (Butler) ; Suffolk, common 



(Tuck, who bi'ed a female in April, 1902, from a spider's nest near Bury St. 



Edmunds — it had previously only been bred from Lepidoptej'a, and no member 



of the genus was known to prey upon the Arachnida). 



