68 



puncturation of the ventral surface is much more distinct than 

 in A. transitus. I have described A. browni at some length, 

 partly because, though well known, A. transitus is far from 

 adequately described, partly because I am not certain what 

 features may be regarded as of generic or group, rather than 

 specific, importance. 



ACANTHOLOPHUS TENNANTENSIS, U. Sp. 



(S . In general appearance close to A. simplex, Pasc. 

 Black ; densely clothed with golden-brown squames, on the 

 elytra obscurely maculate with white. 



Rostrum short, rather wide, much dilated on the sides 

 below the scrobes ; the upper surface feebly concave in front, 

 the external margins feebly raised, not angulate in front ; the 

 oblique ridges hardly traceable, and the basal foveae shallow. 

 Plead concave behind intercristal ridge ; supra-ocular crests 

 strongly developed, bifid ; as viewed from in front, sloping 

 inwards at base and joined across head in a strong intercristal 

 ridge ; posterior ramus of crest the larger, about the same size 

 as in J., simplex, projecting outwards, upwards, and slightly 

 backwards, the anterior ramus shorter, stouter, projecting 

 forwards, the apex upturned. Prothorax (3x4 mm.) much 

 as in A. simplex, the mesial series consisting of six spines on 

 each side, arranged in single series, showing a slight deviation 

 outwards in the middle ; the spines short, blunt at apex, the 

 basal two somewhat smaller than the others ; external margin 

 with a strong outwardly projecting spine about the middle, 

 and a much smaller one conjoined with it at base anteriorly; 

 the postero-lateral spine represented by a mere granule. 

 Elytra (9x5 mm.) in general appearance as in A. simplex; 

 seriate punctures shallow, only traceable from some directions ; 

 with three rows of tubercles, on the third, fifth, and seventh 

 interstices, the other interstices with small granules, little 

 evident except on the second ; the first row of tubercles small 

 and granuliform at the base of the elytra, the apical three 

 large, spiniform, the apical spine projecting over the declivity; 

 the second row about eight in number, the basal ones small, 

 the last three or four large, acutely spiniform, the apical one 

 situated halfway down declivity, at a more posterior level than 

 the apical spine of the first row ; the third row with a large 

 outwardly projecting humeral tubercle, followed by four 

 others, gradually decreasing in size, and extending to about 

 the middle of the elytra. Beneath with apical segment 

 rugosely punctured, the other segments with subobsolete 

 punctures. Legs simple. 



9 . Rostrum, head, and prothorax as in the male : the 

 postero-lateral tubercles rather stronger, triangular. Elytra 



