340 Mr. G. Lewis on 



Gnesi's helopioideSj Pascoe. 



Gnesis helopioides, Pasc. Journ. Ent. p. 477 (1866). 

 Tromosternus Haagi, Har. Abb. Brem. p. 131 (1876). 



This species is figured in ' Aid to Identification of Insects,' 

 pi. xxiv. p. 158. 



Hah. South and Central Japan. Not very common. 



Helops aranetformis, Allard. 



Helops araneiformis, All. Rev. Helop. vrais, L'Abeille, xiv. p. 67 

 (1876). 



This species was omitted in my list of Japanese Tenebrio- 

 nidffi (Ann. & Mag. Nat. Hist. ser. 6, vol. xiii. p. 484, 1894), 

 nor does the name appear in the ' Zoological Record ' of 

 1876. The species only measures 7 mill., and is described 

 doubtfully as belonging to Helops. 



Pleswphthalmus brevipenms, sp. n. 



Subelongatus, niger, nitidus, leviter convexus ; capita rugose punc- 

 tato ; thorace subtilissirae punctulato ; elytris subtilissime striato- 

 punctatis ; antennis pedibusque obscure rufis. 



L. 13| mill. 



Black, shining, with a slight bluish tint, antennfe and legs 

 dull red ; the head rugosely punctate, lateral ridges, under 

 which the antennaj are inserted, distinctly elevated ; the 

 thorax rather wider than broad, anteriorly rectangular, ante- 

 rior and lateral margins finely but clearly raised, surface 

 polished, with a very fine sparse punctuation, most sparse on 

 the disk ; the elytra relatively short as compared with P. nigro- 

 cyaneuSj Motsch., highly polished and very finely striate- 

 punctate, interstices very feebly (almost obsoletely) convex, 

 with a punctuation sparse and very fine. The male has the 

 last ventral segment emarginate. 



The type of this species is much smaller than any example 

 of P. nigrocyaneus 1 have seen, and possibly the sculpture 

 and colour of the body and legs may vary as much as in that 

 species ; but still there are three good characters by which it 

 may be recognized, viz. the greater elevation of the antennal 

 ridges, the feeble surface-sculpture, and the shorter elytra. 



Hab. Oshima (Ferrie). I have only seen one male 

 example. 



