MEGACEPHALA. 



441 



scattered setae ; scutellum large, almost smooth ; elytra ovate, 

 convex, duller than the front parts, with the shoulders quite 

 rounded off, gradually rounded to apex, with scattered and not 

 close punctuation throughout (the bottom of the punctures being 

 green), and with smaller and finer, sparingly distributed punctures 

 between them ; the punctuation is much stronger at the sides, 

 which are brighter and show traces of violaceous reflection, the 

 extreme margins being metallic green, and the epi pleurae ferru- 

 ginous ; the yellow markings are conspicuous : there are three on 

 each elytron, one at the base, oblong, not touching the side 

 margin, one behind the middle almost circular, but produced a 

 little towards the margin, and a third, oblique, at the apex ; at 

 and before the apex there are distinct coarse outstanding setae ; 

 legs stout, setose ; underside, in the Eabrician specimen, with the 

 sides of the presternum and the apex of the abdomen almost bare, 

 and the rest of the sides pubescent. Dr. Horn, however, speaks of 

 the forehead, pronotum, epipleurse of the elytra, the genae, and all 

 the side-parts of the body as furnished with pubescence, and 

 speaking of the peculiar setae at the apex of the elytra, he says 

 that, as on the whole upper surface, besides the deeper punctures, 

 there are finer scattered punctures, he does not consider it im- 

 possible that in fresh examples the whole upper surface is covered 

 with setose hairs. 



Length 21-22 millim. 



Madras : Coromandel. Tranquebar. 



No specimen has been taken for more than a hundred years. 



Subfamily MEGACEPH ALINiE. 



Eather large and conspicuous insects, with the head, as a rule, 

 much developed ; but this is not always the case, as in Oxycheila 

 it is only of moderate size ; the palpi are elongate, the labial 

 palpi being longer than the maxillary, and the third joint of the 

 latter is longer than the fourth ; they are very active insects, 

 but are, in certain cases, apterous, The family is only represented 

 by one species which has a very wide range in the Palaearctic and 

 Oriental regions. 



Genus MEGACEPHALA. 



Megacephala, Latreille, Hist. Nat. Ins. iii, p. 79, 

 Tetraclia, Hope, Col. Man. ii, p. G. 



Type, Cicindela senegalensis, Linne. 



There seems to be no sufficient reason for separating Megacephala 

 and Tetraclia. The latter was separated by Westwood and Horn 

 on the ground that the mandibles have four apical teeth, instead 



