202 Rev. T. A. Marshall's monograph of 



Maxillary palpi G-, labial 3-joiuted, Clypeus truncated or 

 rounded in front, with 2 deep basal fovese. Metathorax not 

 areated. Second cubital areolet rhomboid or trapeziform ; re- 

 current nervure much rejected ; praediscoidal areolet not petiolated ; 

 1st abscissa of the radius very short; radial areolet lanceolate, 

 ending before the apex of the wing. Legs short. Abdomen short, 

 sessile, rounded at the sides. Terebra elongate. 



Form short, stout, with large head and small abdo- 

 men ; body black, shining ; the deep impressions at the 

 base of the clypeus, and the rhomboid or subquadrate 

 form of the 2d cubital areolet, are marks which dis- 

 tinguish this genus among the Polymorphi ; one species, 

 D. speculator, Hal., is aberrant, having the 2d cubital 

 areolet contracted on its upper side. To the genus 

 Diospilus belong several Bracons of Nees v. Esenbeck 

 (Sectio IV., Tribus i., Macrocephali, Mon., i., 60 — 67), 

 viz., melanoscelus, dispar, Jilator, capito, and ephipjnum. 

 Of the others there described, nohilis is a Doryctes ; 

 analis a Cenocoelius ; flavicornis an Aspidogonus : eheninus 

 a Macrocentrus ; dissimilis and gagates remain still un- 

 known. Euhadizon trigonus, Nees, is a Microti/jms. 

 This disposes of the list of difficulties given by Haliday 

 in his description of Diospilus (Ent. Mag., iii., 134) ; he 

 was acquainted with 3 species, but considered one of 

 them, capito, Nees, a variety of the common oleraceus ; 

 Wesmael published 5 species, and Reinhard, in his 

 paper on Diospilus, in the Berl. ent. Zeit., 1862, has 

 raised the number to 11. Five British species will be 

 noticed here, of which one is new ; they are not easy to 

 identify. 



Table of Species. 



(4) 1. Palpi testaceous. 



(3) 2. Second cubital areolet subquadrate . . . . 1. oleraceus, Hal. 



(2) 3. Second cubital areolet much narrowed ante- 

 riorly .. ..5. speculator, Hal. 



(1) 4. Palpi blackish. 



(8) 5. Eadius ending nearer to the tip of the wing 

 than to the stigma. 



(7) G. Metathorax smooth ; terebra longer than the 



abdomen . . . , . . . . . . 2. capito, Nees. 



(6) 7. Metathorax rugulose ; terebra not longer than 



the abdomen . . . . . . . . . . 3. ovatus, n. s. 



{')) 8. Radius ending nearer to the stigma than to 



the tip of the wing . . . . . . . . 4. morostis, Beinh. 



