rii/nienoptcra of the Australian lici/ion. 105 



is smootli, or more finely rugose, quite different from the 

 .interior portion. Lower margin of the stigma to tlie radius 

 nearly straight, so that the stigma is not very large and 

 receives the radius heyond the middle. First recurrent 

 received before the first transverse cubitus or interstitial 

 with it. 



Type of genus, Prosopis xanthopoda, Cockerell. 



Stipites of the male genital armature simple, no lacinia or 

 membrane, pilose apically, the sagittte reaching to the apex 

 of the stipites, or a little longer. Eighth ventral segment 

 produced in the middle into a more or less elongate process; 

 this segment, therefore, entirely different from the group of 

 Australian Prosupis (which also have the propodeal area 

 rugose) with the eighth segment produced into long pilose 

 bifurcations. 



This is a very easily recognized genus, on account of the 

 general similarity of the sexes in their mandibular structure, 

 quite different from that of Prosopis., which has in the male 

 a sharp apical tooth at least or is apically acutely bidentate. 

 In Prosopis, also, the longitudinal carinae of the mandibles 

 enclose a narrow elongate triangular space, the apex of the 

 triangle at the apex of the mandibles, where the carinse meet 

 or are approximate. In Gnathoprosopis, in the female at least, 

 the mandibles have a peculiar vestiture, and in both sexes 

 they leave only a very small basal portion of the labrum 

 visible. The several species of which I have seen males have 

 the face remarkably polished, almost oily in appearance. 

 The dilatation of the scape appears to be developed pari passu 

 with that of the processes of the ventral surface of the 

 abdomen. 



No doubt this genus is numerous in Australia, as I myself 

 have taken several species and have specimens from Adelaide 

 to Cairns. 



Gnathoprosopis theodorei, sp. n. 



^ . Black, abdomen except the extreme base ferruginous. 

 Mandibles, the whole face below the antennae, the scape of 

 the autennse except above (where it is dark brown), a wide 

 production upwards nearly to the top of the eyes from the 

 facial colouring, the hind margin of the pronotum (narrowly 

 interrupted in the middle), the tubercles, and a connection 

 between these and the pronotal border yellow or creamy 

 yellow ; flagellum of anteunse ferruginous, a little paler 

 beneath. Femora for the most part black or dark, but the 

 middle ones are pale in front and down the middle poste- 

 riorly; tibiee yellow^ the middle and hind pair with dark 



