Braconidae in (he British Museum. 53 



Subfamily Dobyctinm. 



Key to the Australian Genera of the Doryctiuae. 



1. Hind cozsa with a long spine; parapsidal 



furrows obsolete; a strongly curved 

 uervure springing from the apical angle 

 of the mediellan cell and dividing the 



discoidellan cell Liodoryctes, Szep. 



Hind cozes unarmed; parapsidal furrows 

 well developed; discoidellan cell not 

 divided by a curved oervure 2. 



2. Pronotum armed with an upright spine on 



each side, the first and basal area of the 



second tergite longitudinally striated . . Acanthodoryctes, Turn. 

 Pronotum unarmed; basal tergite Longer 

 than broad, sparsely punctured; second 

 tergite smooth Syngaster, Brulle*. 



Key to the Species of Liodoryctes. 



??. 



1. Second tergite smooth ; mesonotum reddish. 2. 

 Second tergite finely longitudinally striated 



on the basal area ; mesonotum black . . L. nigrofiorsalis. Turn. 



2. Ovipositor very distinctly shorter than the 



abdomen ; median segment black L. erythrothorax, Turn. 



Ovipositor ai least as long ay the abdomen, 



median segment reddish 3. 



3. Head yellowish red L. australiensis, Szep. 



Head black L. atriceps, Turn. 



Liodoryctes nigridorsalis, sp. a. 



$> . Fulvo-brunnea ; inandibulis apice, antennis, pronoto, meso- 

 noto, scutello, propleuris, mesopleuris, tarsis articulo apicali, 

 fcrochanteribus intermediis subtus, coxisque posticis nigris ; 

 capite, segmcnto mediano, abdomine subtus, scgmento dorsali 

 primo, segmentoque dorsali secundo lateribus flavis; alis fusco- 

 hyalinis, basi flavidulis, venis fusco-ferrngineis, stigmate flavo; 

 terebra abdomine paullo longiore, nigra. 



Long. 9 mm., tercb. long. 5 mm. 



? . Face below the base of the antennae rugulose ; front 

 shallowly concave between the anterior ocellus and the base 

 of the antennae. Thorax smooth and shining ; median seg- 

 ment covered with very large punctures. First tergite more 

 than half as broad again at the apex as long, irregularly and 



