318 Mr. G. R. Waterhouse's Descrtptions 



suture there are two transverse spots, one on each side, at a short 

 distance from the suture. The elytra are deeply punctate- 

 striated. On the upper surface of the thorax are three spots, one 

 behind, which is triangular, and one on each side ; these last are 

 joined by a narrow subinterrupted transverse line. It is possible 

 this may only be a variety of the rosco-maculatus ; but the differ- 

 ence in sculpture and size, as well as there being two transverse 

 spots distant from the suture in lieu of the cordiform spot on the 

 suture, caused me to separate it. In the present group, however, 

 I have found considerable difterence in the sculpturing of specimens 

 of the same species, and the markings in some are subject to 

 extraordinary variations ; that is, if I am right in supposing all 

 those insects as varieties of P. orbifer which I have given as 

 such. 



Sp. 13. Pachyrhynchus roseo-maculatus, Waterh. 



Niger ; elytris distincte punctato-striatis ; capite maculd inter 

 oculos ; thorace supra trimaculato; elytris undecim-maculatis ; 

 his maculis roseis, plerisque oblongis ; macula und suturali 

 obcordata. 



Long. Corp. C^ lin., lat. 2^ lin. 



This species is about the same size as P. moniliferus, but has 

 the elytra pi'oportionately rather narrower, and much more dis- 

 tinctly punctate-striated. It is readily distinguished from other 

 species described, by the rosy hue and the peculiar form and dis- 

 position of the spots and markings. The head has the usual 

 mark between the eyes, and one on each side under the eye. The 

 rostrum is distinctly punctured and has a deep triangular depres- 

 sion, the lower boundary of which terminates in a line with the 

 antennae. The thorax is impunctate, and has a triangular spot in 

 the middle behind, and a transverse spot about midway between 

 the anterior and posterior margins and running from the sides 

 where it is broadest towards the middle ; each spot being pointed 

 on one side and having the point directed towards the centre of 

 the thorax : on each side just above the femur is a broadish longi- 

 tudinal mark, and a transverse line joins these marks on the under 

 side of the thorax : between the anterior femora is another line. 

 At the base of the elytra are four oblong spots, one on each side, 

 and one on each elytron between them and the suture ; on the 

 suture, about midway between the base and apex of the elytra, 

 is a reversed heart-shaped spot, and opposite this (towards the 

 sides of the elytra) is another spot on each side which is nearly 



