417 



occasionally with a median longitudinal depression, the frontal 

 prominence conspicuous ; viewed from the side more high than 

 long, the mouth not directed backwards, the mandibles not 

 large; maxillary palpi 5-jointed. Thorax convex dorsad; 

 scutum often with scattered punctures, the parapsidal furrows 

 deep and complete, rarely incomplete, the median lobe often 

 with two depressions cephalad, in one instance depressed 

 caudad, the lateral lobes sometimes depressed; scutellum with 

 two large foveae at base, and one along either side, these latter 

 rarely narrow and obscure, the caudal margin foveate ; meta- 

 notum with a raised scale, sometimes absent, at base. Petiole 

 not more than thrice as long as wide, carinate, normal. Body 

 of abdomen raised from petiole, without impressions at base, 

 gently convex above and below, rounded caudad, the second 

 segment occupying over one-half of surface. Antennae 

 .13-jointed ; scape prolonged at apex and covering base of 

 pedicel ; flagellum joints never slender, with a club of from 

 five to seven joints, the last joint small, rarely lengthened. 

 Fore wings long and broad, in one instance shortened and 

 narrow ; venation terminating about middle of wing ; marginal 

 vein sometimes thickened, two to four times as long as wiile, 

 the stigmal short, the basal usually more or less distinct ; a 

 white longitudinal stripe through middle of wing always 

 present. Size moderate. 



The numerous species placed in this genus form a natural 

 segregate. The genus can be distinguished from all other 

 genera of the family, except N eurogalesus and Euhoplopria, by 

 the distal prolongation of the scape. From tEe two genera 

 named it differs in the different form of the head, and the 

 non-grooved base of abdomen. It is possible that it is but 

 one of Kieffer's numerous genera, but I cannot reconcile it 

 with any previously described genus. The species are from 

 various parts of Eastern Australia, and there are no doubt 

 many more to be discovered. Type. — H. hicoloricornis. 



Table of species. 



(1) Vertex more or less rugose-sulcate ; median 



lobe of isciitnm with two depressions 



cephalad (2) 



Vertex at the most with scattered punctures (4) 



(2) Apical antennal joint small, no longer than 



preceding and narrower hicoJoricornis 



Apical antennal joint long, much longer 



than preceding (3) 



•(3) Frons below ocelli with numerous fine cross- 

 sulci ; second segment of abdomen dis- 

 tinctly more than twice as long as the 



following united snlcaficeps 



O 



