1910.] FCSSORIAL WASPS OF AUSTRALIA. 341 



Genus Aphelotoma Westw. 

 Aphelotoma auriventris Turn. 



Aphelotoma auriventris Turn. Ann. & Mag. Nat. Hist. (7) xix. 

 p. 269 (1907), $ . 



S . As in the female, but the antennae, mandibles, tibia?, and 

 tarsi are much darker than in the female, the antenna? and 

 mandibles being almost black. The apical segments of the 

 abdomen are also more withdrawn. The second recurrent 

 nervure in this species is interstitial with the second transverse 

 cubital nervure. 



Aphelotoma striaticollis, sp. n. 



2 • Olypeus small, shining ; the labrum prominent and notched 

 at the apex. Mandibles very sharply bent near the base, the 

 apical half falcate and acute at the apex, the basal half much 

 broadened, with a tooth near the middle of the inner margin. 

 Antenna? inserted much further from each other than from the 

 eyes, filiform ; the second joint of the flagellum as long as the 

 first joint and the scape combined. Head opaque, the front very 

 finely and indistinctly longitudinally striated ; the inner margin 

 of the eyes nearly parallel ; the posterior ocelli nearer to the eyes 

 than to each other. Pronotum much narrower than the head, 

 longer than the mesonotum, longer than broad, finely rugose, the 

 sides raised and forming marginal carinas, two parallel longi- 

 tudinal carina? close together near the middle reaching from the 

 anterior to the posterior margin. Mesonotum and scutellum 

 coarsely longitudinally rugose ; propleura? finely, mesopleura? 

 coarsely rugose. Median segment very coarsely reticulate, the 

 sides obliquely striated, vertically truncate posteriorly, longer 

 than the pronotum, broader than long. Abdomen smooth and 

 shining, the third and following segments very minutely punc- 

 tured. First recurrent nervure received beyond two-thirds from 

 the base of the first cubital cell, second received near one-fifth 

 from the base of the third cubital cell. The branch nervure from 

 the first transverse cubital nervure reaching into the first cubital 

 cell is very short. 



Black ; the mandibles and the apical joints of the tarsi beneath 

 fusco-ferruginous; abdomen shining bronze. Wings fusco-hyaline, 

 clearer at the apex, with a broad hyaline band crossing the first 

 cubital cell ; nervures fuscous, testaceous in the hyaline band. 



Length 8 mm. 



Hob. Townsville, Q. (F. P. Dodd). October. 



Near auriventris Turn., but the position of the recurrent 

 nervures is different ; it also differs in the shape and sculpture 

 of the pronotum and in colour. 



Aphelotoma affinis, sp. n. 



5 . Mandibles shaped very much as in striaticollis, but more 

 broadly flattened on the basal half and with a small tubercle near 



