10(5 Dr. "R. 0. L. Perkins on Aculeate 



markings towards the apex ; tarsi yellow, the front and middle 

 ones more testaceous, except tlieir basal joints. 



Face below the antcnnte polished, very obscurely sparsely 

 punctured. Head above dull, very densely finely punctured. 

 Apical margin of supraclyi)eal plate twice (or more) as wide 

 as the length of its side to tlie antennal fossa. Scape strongly 

 dilated, sul)ovate, but not so wide as long. Mesonotuni very 

 dull and densely punctured, densely clothed with extremely 

 short dark erect hairs and very sparse longer ones, which 

 are more developed on the scutellum. Anterior area of pro- 

 ])odeura shining, coarsely reticuiately rugose. Wings clear 

 hyaline, stigma and nervures fuscous. 



Abdomen dark brown or fuscous on the basal portion and 

 very deeply channelled in the middle above the petiole, un- 

 usually robust, shortly ovate, all the segments finely and 

 closely punctured and densely and evenly clothed with longish 

 erect pale pubescence, becoming fuscous on the ajjical seg- 

 ments. Third ventral segment produced into two great 

 lateral dependent flattened processes, with the apices concave 

 or cmarginate, so as to form a large and a small apical angle, 

 the segment deeply depressed behind the base between these 

 processes ; fourth segment with an oblique transverse carina 

 on each side ; sixth with a deep transverse fovea or impression 

 on each side at the base. 



(^ . Length 7 mm. 



By far the most remarkable of the Prosopis xanthopoda 

 and bituberculata group, as at present known, and perhaps 

 hardly congeneric with the others. Genitalia very remark- 

 able (probably abnormal for the genus), the armature with 

 simple pointed stipites, pilose apically, the cardo unusually 

 long; sagittoe extending to or slightly beyond the apices of 

 the stipites, dilated, with a prominent angle about the middle 

 of their length. Seventh ventral segment cmarginate apically 

 in the middle, bilobate on each side, the apical lobes concavo- 

 convex, large, the posterior narrow, elongate-ovate, and more 

 membranous, neither lobes ciliate; apical process of the 

 eighth very long, angulate at the top in the middle and with 

 apical hairs. 



Hab. Townsville, Queensland {Dodd). 



Eupiiosopis, gen. nov. 



This may be considered by some as a subgenus only of 

 Prosopis, but, I think, when tliat genus is properly classified 

 it will be found worthy of full generic rank. Prosopis 

 huscla may be taken as the type of the genus. 



