Phytophagous Coleoptera. 453 



Vertex shining, nearly impunctate; encarpas pyriform, con- 

 tiguous; carina obsolete; eyes large, prominent; antenna; 

 moderately i-obust, the third joint nearly twice the length of 

 the second, the two conjointly shorter than the fourth. Thorax 

 twice as broad as long ; sides parallel, deeply bisinuate, the 

 hinder angles produced, subacute, the anterior ones excurved, 

 acute; disc transversely excavated, more deeply depressed on 

 either side ; the transverse depression, together with the apical 

 surface on either side near the anterior angles, impressed with 

 a few deep coarse punctures, the rest of the surface impunctate. 

 Scutellum longer than broad, trigonate. Elytra broader than 

 the thorax, strongly and deeply punctured. 



Genus SPHENORAIA, Clark. 



(Ann. & Mag. Nat. Hist. October, 1865). 



This generic group, unknown to Dr. Chapuis, and reduced by 

 Von Harold into a synonym of Galerucida, is quite distinct from 

 that genus, and is more allied to Haplosonyx; from the former 

 it may be known by the different form and sculpture of the 

 thorax, together with the difEerent structure of the antennae; 

 from the latter by the short and equal second and third joints 

 of the antennaj, these organs themselves being usually shorter 

 than in Haplosonijx ; in addition, in Sphenoraia the transverse 

 depression below the basilar space is either obsolete or very 

 indistinct, the elytra are more deeply punctured, and the punc- 

 tures are arranged in irregular longitudinal stria\ 



1. Sphenoraia hicolor, Hope {Galerucida, Cat.). 



Oblonga, sordide fulva. thorace uigro bimaculato; elytris for- 

 titer punctatis, punctis disco interno in striis gemillatis, disco 

 externo confuse dispositis ; utrisque macuUs decem 2.2.2.2.1 

 positis, nigris instructis. 



Var. A. Elytrorum maculis nounullis inter se confluentibus. 

 G. hicolor, Hope. 



Var. B. Elytris totis ingris.* S. nigripennis, Clark, I.e., p. 207 . 

 Var. C. Elytrorum maculis fere totis obsoletis. 

 Hab. Assam. 



* G. nkjvofasc'tata, mihi, quoted by Von Harold under this species 

 jnust be placed as a synonym of (r. hif(ti<ci(it(t, Motsch. 



