49^4 MARTIN .lACOHY 



costiite elytra in both sexes will help to distinguish the species 

 which lias somewhat the appearance of a Lujierim. 



liii). Dorydea (Plaiyxanlha) nigripennis, .lac. — Elongate, sub- 

 (le})ressod, fulvous, the ])reast, a))(lomen and the apex of the til)iae 

 and the tarsi blackish , thorax bifoveolate , impunctate , elytra 

 black, nearly impunctate. 



Mas. Antennae robust, the ninth joint greatly dilated and 

 enlarged, the tenth short, subtriangular, the apex conical, ter- 

 minal joint longer, dilated and flattened, elytra nearly impunc- 

 tate, abdominal segments margined with flavous. 



Fern. Antennae simple, elytra closely and finely j)unctured 

 anteriorly, the apex nearly impunctate. 



Length 3 V2 lines. 



I fab. Si-Rambé. 



Of this species, described by myself in the " Notes from the 

 Leyden Mus., 1884 " two apparently female specimens are con- 

 tained in this collection, they agree with the type in most par- 

 ticulars, except tliat the antennae are entirely fulvous and the 

 tibiae black at the apex as well as the tarsi ; another male 

 specimen I have lately received, of which I give the description 

 above which I refer to the present species, on account of its 

 similarity in every respect with the females except in the struc- 

 ture of the antennae, these in their dilated apical joints agree 

 very nearly with the type of the genus D. ùisigNÌs, Baly. In 

 the present insect, the elytra in the male show just a trace of 

 the punctures, when seen under a strong lens, which are.su 

 })lainly marked in the females, but of course, the possibility is 

 not excluded that the male, here described, m;iy not represent 

 the other sex of the original type, although it is liighly probable, 

 and if so, Dorydea is a better place for the species than IHa- 

 tyxantha; the black elytra will at once separate the insect from 

 I), insignis. 



15G. Platyxantha submetallica, n. sp. — Elongate, flavous, the 

 antennae, tibiae and tarsi more or less piceous, thorax bifoveo- 

 hite, impunctate, elytra flnely longitudinally costate, obscure 

 fulvous, the sides and base metallic dark greenish. 



