British Braconidce. 11 



(18) 17. Occiput margined, distinct from the ver- 

 tex ; axillary areolet with an incomplete 

 transverse nervure . . . . . . 22. Dioainlides. 



(17) 18. Occiput not margined ; axillary areolet 



with no vestige of a transverse nervure 23. Opiides. 



V. ExoDONTES, IJ'csm. 



(2) 1. Fore wings with 3 cubital areolets (rarely 



ai^terous or subapterous) .. ., 2i. Ahjsiides. 



(1) 2. Fore wings with 2 cubital areolets . . 25. Dacnusides. 



VI. Flexiliventres, Ilal. 



Hind wings with only 2 longitudinal ner- 

 vures ; prjebrachial areolet often in- 

 complete ; pobrachial areolet wanting 20. Aplddiides. 



I. CYCLOSTOMI. 



I. BEACONIDES. 



As regards British species, the characters coincide 

 with the single genus 



Beacon, Fah. 



Fab., Piez., 102 (1804) ; Wesm., Mem. Ac. Brux., 

 1838, p. 7 ; Forst., Verb. pr. EheinL, 1862, p. 235. 



Mandibles bidentate, touching at the points, and enclosing, with 

 the emarginatiou of the clypeus, a somewhat circular opening. 

 Maxillary palpi 5-, labial 3-jointed. Antennaj with a variable 

 number of joints, even in the same species, from 14 ( 5 ) to upwards 

 of 40 ((? $ ) ; 3d joint longer than the 2d. Occiput not margined. 

 Mesothoracic sutures distinct. Metathorax not areated, sometimes 

 carinated. Abdomen sessile, with 7 visible segments. Suturiform 

 articulation distinct, sinuated or straight. Terebra $ exserted, of 

 variable length. Cubital areolets 8, the 2d trapezoidal; recurrent 

 nervure rejected ; pra;brachial and pobrachial areolets of equal 

 length ; pobrachial areolet of the hind wings minute. 



The second subfamily, Exothccides, is closely allied, 

 and was only separated l)y Fcirster as an afterthought, 

 at the end of his Generic Synopsis, lib. cit., p. 279. In 

 the Exothccides the pobrachial transverse nervure is 

 evected, whereby the pobrachial areolet becomes longer 

 than the prsebrachial. The genus Cadoidcs, Wesm., is 

 easily mistaken for Brcicon, having the pobrachial trans- 

 verse nervure similarly interstitial ; but the occiput is 

 margined, the 3d joint of the antenna) is not longer than 



