162 PHYTOPHAGA. 



Of this species two specimens are contained in my collection, given to me by 

 M. Boucard ; although they evidently belong to the same species, the punctuation of 

 the elytra is rather different in each, one specimen being much more distinctly gemi- 

 nate-punctate than the other, and having at the same time a well-marked depression at 

 the base, which is almost entirely absent in the other specimen. The distinctly 

 punctured thorax, and want of the elytral costse, will separate the present insect from 

 C. violaceipennis. 



16. Chalcophana simplex. 



Eufous ; antennae (the basal joints excepted), apex of tibiae, and the tarsi black ; thorax remotely punctured ; 

 elytra metallic green, their margin and apex rufous, closely punctate -striate. 



$ . Larger, thorax transverse, thorax and elytra more strongly punctured, without costae. 



Length 3-3^ lines. 



Head with a distinct cruciform depression between the eyes, almost impunctate ; antennas long and slender, 

 black, the first three joints rufous; thorax with a few very distant punctures; elytra slightly narrowed 

 behind, the apex pointed, with a short but deep transverse depression below the base ; the shoulders 

 rounded and not very prominent, surface rather finely punctate-striate, the punctuation stronger at the 

 basal depression, and at the sides and near the apex arranged in widely apart single rows. 



Hob. British Hondueas, river Sarstoon {Blancaneaux). 



Of this insect, which is very closely allied to C. hybrida, Jac, and C. fraterna, Har., 



a male and a female specimen are before me ; but the following differences between the 



present species and the last named prevent me from considering them identical with 



the latter : — The thorax in C. simplex, if a male specimen is compared with that sex of 



C. hybrida, is, although transverse, less convex, and the anterior margin is produced in 



the middle, which is not the case in C. hybrida, in which insect the first four joints of 



the antennae are rufous, instead of three ; the elytra in C. simplex (s) are closely 



punctate-striate, with traces here and there of double rows ; in C. hybrida they are more 



distinctly geminate-punctate, and the intervals between the rows are greater; lastly, 



the female of the present species from the same locality is entirely without ribs or 



costse, differing in that respect from the female of C. hybrida. With all these differences 



I cannot, however, quite conceal my doubt as to the specific value of C. simplex, as I 



have only two specimens for comparison. C. fraterna seems also very closely allied ; 



but as v. Harold does not mention the sex, and gives the tarsi as entirely red, I 



cannot consider my species identical with his. 



17. Chalcophana dissimilis. 



Eufous below ; apex of the tibiae and the antennae (their basal joints excepted) black ; thorax finely punc- 

 tured ; elytra violaceous blue, finely geminate punctate-striate, their apex rufous. 



Var. antennae and legs black. 



Length 3 lines. 



2 . Head finely and closely punctured, rufous, with a more or less distinct fovea between the eyes ; antennae 

 entirely black, or with the two or three basal joints more or less distinctly rufous ; thorax narrow, trans- 

 verse, the anterior angles mucronate, the sides rounded, surface closely and extremely finely punctured ; 



