BY THOMAS G. SLOANE. 35 



of mandibles, upper side of joints 2-4 of antennae and apex of 

 posterior femora infuscate; subsutural row of punctures green at 

 bottom; sides of body and of first thi-ee ventral segments green;, 

 apical ventral segment and sides of fourth and fifth testaceous. 



Head large, feebly bifoveolate between eyes. Prothorax 

 broader than long (3-3x4 mm.), widest at anterior transverse 

 impression, a little narrowed to base, convex between anterior 

 and posterior transverse impressions; these impressions strongly 

 marked; anterior margin deeply and widely sinuate on each side. 

 Elytra much wider than prothorax (8"5 x 6'2 mm.), rounded on 

 sides, narrowed to base, very widely and obtusely rounded at 

 apex ; each elytron widely subdepressed posteriorly on lateral 

 parts of disc; punctate basal part oval, not extending along suture 

 as far as middle of length; the dilatation of the lateral yellow 

 margin hardly punctate ; all the elytra behind this dilatation 

 Isevigate, subopaque; a row of widely placed fine punctures along 

 margin; marginal channel punctate and greenish-black for a short 

 distance behind shoulders; lateral border lightly arcuate at notch 

 in inflexed margin. Length 12-14, length 5-5-6-2 mm. 



llab. — Barrow Creek, Northern Territory of South Australia 

 (Overland Telegraph Line). 



Closely allied to T. basalts, MacL, but differing by the elytra 

 having the yellow marginal portion much less widely dilatate 

 behind the shoulders, the punctate basal area smaller (the punc- 

 turation near the base not extending to the posterior part of the 

 posthumeral dilatation of the yellow margin as it does in T. 

 basalts), the lateral channel with a dark blue reflection behind 

 shoulders, the inflexed margin with a deep emargination opposite 

 third ventral segment, the apical ventral segment alone wholly 

 testaceous (the fourth and fifth being testaceous only near the 

 margins). 



Sent to me by Mr. C. French, Government Entomologist for 

 Victoria, as coming from Barrow Creek. I have compared 

 specimens with T. basalts, MacL, and found the difierences 

 indicated above, which seem to me of specific value. 



