BraconidfB in the Brifish Mu.ietim. 105 



Genus Parahelcon, Koknj. 



Para/ielco7i, Kokuj. Revue llusse Ent, i. p. 14 (1901). 



Parahelcon konowi, Kokuj. 



Parahelcon konotci, Kokuj. Revue Russe Ent. i. p. 15 (1901). $ . 

 Opius euthi/rrhini, Cum. Proc. Liun. Soc. N.S.W. xxxvii. p. 19 

 (1912), $. 



Hah. Gosford, N.S.W. 



This genus is easily distinguished by the strongly depressed 

 median lobe of the mesonotum. The neuration is as in 

 Gi/innoscelus ; the anal cell has two cross-nervures, but the 

 second is incomplete. Tlie second transverse cubital nervure 

 meets the cubitus at right angles, not oblique as in ty|)ical 

 Gymnoscelus. 



Calohelcon, gen. nov. 



Anal cell of fore wing with two transverse nervures ; 

 nervulus interstitial or very slightly postf ureal ; second trans- 

 verse cubital nervure slightly oblique, not quite at right 

 angles to the cubitus ; first discoidal cell with a very short 

 petiole, almost sessile. Frontal excavation fairly deep ; 

 median lobe of the mesonotum normal ; parapsidal furrows 

 not very deep, not crenulated. Median segment smooth, not 

 areolated. First tergite as broad at the apex as the second, 

 narrowed at about one-third from the base, the basal portion 

 bilobed on the anterior margin and swollen on each side, at 

 lea.^t as long as the apical breadth, twice as bioad ;it the apex 

 as at the base. Terebra at least as long as the whole insect. 



Type of the genus, C. obscui'ipentiis, Turn. 



Calohelcon obscuripennis, sp. n. 



2 . Nigra ; capita rufo, antennis nigris ; segmento mediano dimidio 

 apicali, segmentoque abdominali prime, macula mediana dorsali 

 subapicali nigra, albidulis ; alia fusco-hyalinis. 



c? . Feniinae similis. 



Long., 2 > 15 mm., terebrae long. 17 mm. ; d , 14 mm. 



? . Clypeus narrowly depressed at the apex, the apical 

 margin straight, not reaching the nnindibles in the middle. 

 Head massive, broader than the thorax, vertex and front 

 smooth and shining, a short longitudinal carina between the 

 antennae; face finely punctured, with an impressed longi- 

 tudinal line on each side from the base of the anteunaj to the 



