AND SPECIES OF GALERUCIN^. 



175 



Hah. Assam : a single specimen. 



Antennae filiform ; eyes black. Thorax nearly twice as broad 

 as long ; sides nearly straight, diverging from the base to 

 beyond the middle, thence obliquely converging towards the 

 apex ; disk smooth, nearly impunctate, impressed just behind 

 the middle with a transverse groove. Elytra rather strongly 

 punctured. 



10. PsEUDOcoPHORA PERPLEXA. Ovata, postice paullo ampliata, 

 convexa, piceo-fulva, nitida, metapectore, abdomine pedibusque 

 posticis quatuor nigris, antennis, tibiis tarsisque anticis pallide flavis ; 

 thorace sat profunde transversim sulcato 5 elytris tenuiter punctatis. 

 Long. 3^ lin. 



Fern. Abdominis pygidio apice leviter angulato-emarginato ; segmento 



anali apice obtuso, obsolete sinuato. 

 Hah. Philippine Islands. 



Antennae yellowish white. Thorax nearly twice as broad as 

 long ; sides slightly diverging and sinuate from the base to 

 beyond the middle, thence converging towards the apex, the 

 hinder angle acute, the anterior slightly produced, obtuse ; upper 

 surface transversely convex, deeply sulcate transversely im- 

 mediately behind the middle, the sulcation nearly as deeply 

 impressed in its median portion as on its sides; disk smooth, 

 impressed with a few distant punctures on the sides. Elytra 

 oblong, slightly dilated posteriorly, convex, finely but distinctly 

 punctured. 



The present insect closely resembles the same sex of P. amhusta, 

 var. A ; but the entirely different form of the pygidium in the 

 two species at once separates them. 



Genus Aulacophora, Clievr. 



The first six species here described have simple antennae in 

 both sexes ; in the last eight the antennae in the males have the 

 third to the sixth joints compressed, and more or less thickened 

 and dilated ; the females of this section appear to be much rarer in 

 collections than the other sex, and only in a few cases are known 

 to me. ^rhe following Table gives the diff'erential characters of 

 the males of this latter group : — 



