the African Species o/Hedybius. 471 



Redescribed from a pair from Stellenl)oscb (mounted on 

 the same piece ol: card) commnnicated by Dr. Peringney, 

 the sexes agreeing with the respective publislied descrip- 

 tions ; three other males are also available for examination, 

 the one from Ceres 4 mm. only in length. Very like 

 H. amcenus, Gorh., but easily separable, in the male sex, by 

 the absence of the shining oblong black areas beneath the 

 antennal joints 3 and 4 (these joints being simply maculate 

 above and beneath in H. bimaculatus) , the more rounded 

 sides of the prothorax in both sexes, the discoidal marking 

 reduced to two small spots, and the more coarsely punctured 

 elytra. Two $ ? in the British Museum are without 

 locality-label. The ^ in the Oxford Museum, from an old 

 collection, is correctly named. 



20. Hedyhius quadricornis . 



Hedybius quadricornis, Gorh. P. Z. S. 1905, ii. p. 276 ( J $ ). 



■($ . Antennae long, stout, tapering, testaceous, joints 1-11 

 nigro- or fusco-maculate at the tip above, 3-10 triangular, 

 3 as long as 4; head (PI. XIII. figs. 19, 19 a) broad, testa- 

 ceous, green at the extreme base^ vei'y dee])ly eroso-excavate, 

 the cavity limited on each side of the anterior margin 

 by two shining tuberculiform prominences, and laterally by 

 two horn-like processes — the upper one very stout, erect, 

 nigro-setose in front, the lower one curved downward, long, 

 more slender, ciliate .at the tip ; prothorax arcuately pro- 

 duced in the middle in front; anterior tarsal joint 2 with 

 a claw-like prolongation extending over the base of 3 ; 

 abdomen testaceous at the apex, above and beneath. 



$ . Antennae much shorter, rather slender, the basal 

 joints testaceous, the others infuscate ; pygidium black. 



Length (to tip of elytra) 3i mm. ( c? ? •) 



Hub. S. Africa, Willowmore, Cape of Good Hope (Dr. 

 Brauns: 1. v. 1903). 



A rather small forin, with the head (except at the extreme 

 base), prothorax, and legs (the posterior tarsi except d) 

 testaceous ; the elytra greenish or seneous, densely, finely 

 punctate, with a few erect hairs intermixed with tl e close 

 silvery pubescence ; the prothorax convex, dull, minutely 

 punctate. The ^ cephalic armature is very different from 

 that of any of tiie allied species. Two pairs of H. quudri- 

 coniis have been lent me for examination by Dr. Pennguey. 

 Figs. 19, 19 « (PI. XIII.) show the head from above and in 

 profile. 



