46 [February, 



apical dorsal aeginents of the abdoinen, and under surface blue ; shining, very 

 tinely pubescent, the prothorax almost glabrous. Head moderately broad, 

 transverse, densely, finely punctate, the intra-ocular grooves rather broad and 

 deep ; eyes not very large ; antennae long. Prothorax narrow, about as long 

 as broad, the sides rounded anteriorly and sinuously converging towards the 

 base ; closely, rather coarsely punctate, the punctures becoming coarser behind, 

 and sometimes wanting along a short, smooth median line at the base ; deeply, 

 obliquely sulcate on each side behind the middle, the sulci confluent on the 

 disc. Elytra as long as broad, wider than the head ; alutaceous, densely, finely 

 punctate, excavate near the suture anteriorly and also within the tumid humeri, 

 the area covered by the blue fascia also somewhat depressed. Abdomen 

 closely, minutely, the penultimate dorsal segment a little more coarsely, punc- 

 tate ; ventral segments 1-4 and 6 with a polished glabrous space down the 

 middle ; anal brushes long. Fourth tarsal joint without lobes. 



c?. Sixth ventral segment emarginate. Genital armature (fig. 2) : lateral 

 lobes very long, slender, almost straight, set with a few projecting hairs on the 

 inner edge at the tip ; median lobe pointed at the apex. 



Length 6^-8 j mm. ( d $ •) 



Kah. India, W. Almora {R. O. C. -. m.l918). 



Thirty specimens. Separable from D. versicolor and annandalei 

 by the less transverse, deeply bisulcate, blue head ; the rather coarsely 

 punctured, non-nodose, less dilated prothorax ; the more shining, 

 caeruleo-fasciate, more distinctly punctured elytra ; and the closer and 

 finer puncturing o£ the penultimate dorsal abdominal segment. The 

 median lobe of the <S aedeagus is less acuminate at the tip than 

 in B. annandalei. The head is constantly blue, but the metallic 

 coloration of the rest of the upper surface is somewhat variable in tint, 

 the abdomen being sometimes greenish, or brassy with the transverse 

 sulci blue. 



5. — Dianous scahricollis, n. sp. * 



Brassy or bronze-green above, blue beneath, the antennae and palpi black ; 

 aubopaque, alutaceous, clothed (the prothorax excepted) with fine pubescence, 

 which is variegate on the elytra and condensed into two or three bluish or 

 green patches across the middle of the disc j densely, very finely punctate, the 

 puncturing of the prothorax distinctly coarser and more rugose than that of 

 the head or elytra, that of the sixth abdominal segment also rather coarse. 

 Head broad, the intra-ocular grooves short, not very deep, distant ; eyes 

 moderately large; antennae long. Prothorax rather narrow, barely as long 

 as broad, rounded at the sides anteriorly, constricted before the base ; with a 

 deep oblique groove on each side of the disc. Elytra wider than the head, 

 subquadrate, as long as broad ; longitudinally depressed along the suture 

 anteriorly and also within the humeri. Ventral segments 1-3 with a narrow, 

 almost impunctate, glabrous space down the middle. Tarsi slender, the fourth 

 joint small, without lobes. 



