234 



to be a continuous tri-sinuate curve, two of tlie sinuationa 

 being formed by the elevated edges of tbe oblique lateral mar- 

 gins of tbe clypeus ; this clypeal structure is common to all 

 the species known to me of the genus, though in varying pro- 

 portions, the elevated margin of the clypeus being strongest 

 in S. l(svis. The prothorax closely resembles that of 

 S. angustatus, but the distinctness of the puncturation varies 

 to some extent, as also the size of the anterior impression 

 which does not appear to depend on sex. On the disc of each 

 elytron there are two strong smooth, wide, and rounded costae- 

 which commence a little behind the front and run rather 

 obliquely towards the suture, but fail altogether a little behind 

 the middle of the elytron, and outside these is a third costa, 

 similar in form but much feebler ; between the sutural stria 

 and the first costa, and between the first and second, and second 

 and third costae, there is strong puncturation which runs, more 

 or less irregularly, in three rows ; outside the feeble external 

 costa the puncturation is fine, confused, and rather sparing^ 

 and this system of sculpture is continued widely round the 

 apex, there being a space almost smooth between the apical end 

 of the costse with their intermediate rows of punctures and the^ 

 apical confused puncturation, which space is bounded laterally 

 by the suture and the confusedly punctured marginal space. 

 The pygidium, underside, and legs do not seem to differ notice- 

 ably from the same parts in >S'. angicstatus. In all the species 

 known to me of the genus it is an occasional thing to find on 

 one or more of the second, third, and fourth ventral segments 

 (not always on the middle line) a short longitudinal im- 

 pression. In this species it is scarcely ever absent, and is 

 nearly always very strong and sharply defined ; in the other 

 species it is generally absent, and when present is quite feeble. 



S. mino7' differs, inter alia, from all Mr. Hope's species in 

 being very much smaller, from S. depressiuscidics, Macl., in not 

 having four costae on each elytron, from S. convexmsculus, 

 Macl., in not having the elytra "strongly striato-punctate," 

 and from S. IcBvis and angustatus in having well defined costae 

 on the elytra. It is a shorter and less parallel species than 

 S. anguBtatus. Its maxillae are similar to those of the last- 

 named species. 



I have taken this insect near Port Lincoln, and have seen 

 specimens from Kangaroo Island (taken by Mr. Tepper) and 

 from the neighbourhood of Sedan (taken by Mr. Eothe). 



BUPEESTIDiE. 

 MELOBASIS. 



Jf. Andersoni, sp. nov. Lata ; sat nitida ; aenea ; nonnullis 

 exemplis elytris versus latera plus minusve cupreis ; subtus 



