British Braconidce. 67 



Table of Geneea. 



(2) 1. Antennre submoniliform, 18 — 20-jointed, shorter 



than the head and thorax . . . . iii. Histeeomerus. 



(1) 2. AntennK fiUform, more than 20-jointed, nearly 



as long as, or longer than, the body. 

 (4) 3. Suturiform articulation distinct ; prs- and po- 



brachial areolets of the fore wings of equal 



length . . . . . . . . . . . . i. Cusloides. 



(3) 4. Suturiform articulation obsolete ; prffibrachial 



areolet of the fore wings shorter than the po- 



brachial . . . . . . . . . . . . ii. Doryctes. 



i. CcELOiDES, Wesm. 



Wesm., Nouv. Mem. Ac. Brux., 1838, p. 59. 



Front excavated between the antenuse and ocelli ; 3d joint of the 

 antennae not longer than the 2d ; occiput margined. The other 

 characters are those of Bracon. The 2d cubital areolet of the fore 

 wing is remote from the exterior margin by much more than its 

 length, measured along the cubitus, — a structure which belongs 

 only to two British species of Bracon, stahilis and hrevicornis, 

 Wesm. The species of Coeloides are parasites of xylophagous 

 Coleoptera ; the two known to be British may be thus dis- 

 tinguished : — 



Legs black ; abdomen testaceous ; recurrent ner- 



vure rejected . . . . . . . . . . 1. scolijticida, Wesm. 



Legs testaceous ; abdomen black above ; recurrent 



nervure interstitial . . . . . . . . 3. melanotus, Wesm. 



1. Coeloides scolyticida, Wesm. (PI. IL, fig. 6). 



Bracon initiator, var. y., Nees, Mon., i., 102, ? . 



Coeloides initiator, Wesm., Nouv. Mem. Ac. Brux., 

 1838, p. 60, <? ? , pi., f. 4 (wing), (nee Fab.). 



C. scolyticida, Wesm., lib. cit., p. 61. 



C. initiatellus, Eatz., Ichn. d. Forst., ii., 39; cf. iii., 41. 



Coeloides, S. v. Vol!., Schets., ii., tab. 5. 

 Black, smooth and shining; head and abdomen testaceovis ; 

 palpi, mandibles at the base and apex, stemmaticum, frontal im- 

 pression, and a large square spot on the face, blackish ; prothorax 

 pleurae, and pectus, somewhat piceous ; wings subfiiscous with a 

 hyaline stripe beneath the stigma, which is fusco-ferruginous ; 

 recurrent ner\Tire rejected ; 2d, 3d, and 4th joints of the antenna; 

 short and equal ; terebra ? about as long as the body. Length, 

 2^ ; wings, 5 lines. 3 ? . 



Anteunai ? slender, nearly as long as the body, 37 — 44-jointed ; 

 suture between the pro- and mesothorax sometimes uiore or less 



