504 NOTES ON THE GENUS STIGMODERA, 



disc striate-punctate, tlie punctures in striae very small, intervals 

 nearly flat, except at apex, minutely punctate, underside finely 

 and closely punctate, the punctures on sternum larger and more 

 widely placed. Dimensions : 9*5 x 3 mm. 



//a6. — Southern Cross, West Australia. 



Two specimens, sent to Mr. W. Duhoulay, the sexes, differ in 

 the colouration of the abdomen, though undoubtedly the same 

 species. In form, somewhat like S. ruhrocincta Gehin, or S. 

 paUidiventris Lap. et Gor., but flatter and less cylindrical than 

 the latter, with the apical structure of the former; the markings 

 consist of six small spots (larger in ^ than in 5), and the apex 

 entirely dark, the apical macula somewhat triangular with its 

 apex slightly extending up the suture. The species is not very 

 near *V. sepfemmaculafa Blackb., nor S. septemgidtata Waterh., 

 both of which have the pronotum concolorous, and which I think 

 I have identified in my collection. Types in the author's coll. 



Note. — This sexual colour-variation of the abdomen probably 

 occurs in more species than is generally known. It is certainly 

 true of *S'. criieiifa Lap. et Gor., a fairly common 83'dney insect, 

 though not mentioned in its description; and shows the import- 

 ance of determining the sex before describing any Stigmodera. 



Stigmodera flaviceps, n.sp. (Plate Hi., fig- 4). 



Elongate, subcylindric, convex. Head and pronotum bronze 

 with green and coppery reflections, the former with a large scuti- 

 form yellow spot, the latter with margins entirely yellow; elytra 

 yellow, with an oblique lateral vitta behind the shoulders, with 

 suture, a postmedian fascia, and an anchor-shaped preapical fascia 

 purple-black; sides and apex sanguineous; antennae, tibiae, and 

 tarsi green, femora red, underside entirely yellow; segments of 

 abdomen with margins and lateral spots i-ed. 



Head scarcely at all depressed, canaliculate only at base, this 

 channel widening into a triajigular depression terminating at, and 

 forming the basal border of, the large vellow spot. Head and 

 pronotum finely and closely punctate. Pronotum with apex 

 slightly advanced in the middle, base bisinuate, anterior angles 

 rounded, posterior acute and slightly produced; sides lightly and 



