1887.] PHYTOPHAGOUS COLEOPTERA OF CEYLON. 105 



flavous ; thorax impunctate, obsoletely depressed ; elytra very 

 minutely punctured. 



Length 2| lines. 



Head impunctate, not longer than broad ; the frontal tubercles in 

 shape of narrow transverse ridges ; the anterior margin of the clypeus 

 straight ; extreme apices of the jaws black. Antennae slender, nearly 

 as long as the body, flavous, the two apical joints slightly fuscous, 

 the third joint slightly shorter than the fourth. Thorax subquadrate, 

 scarcely more than one half broader than long, the sides narrowed 

 towards the base, the angles not prominent, the surface feebly im- 

 pressed at the middle, impunctate. Elytra rather flattened, the 

 base scarcely or feebly raised, the surface very finely and rather 

 closely punctured, the punctuation here and there arranged in rows ; 

 elytral epipleurae continued below the middle. Legs rather short 

 and stout, flavous ; tibiae unarmed; the first joint of the posterior 

 tarsi as long as the two following joints together ; claws appendicu- 

 late. Anterior coxal cavities incomplete. Underside blackish, with a 

 slightly metallic bluish gloss. 



Although the general shape of this species is less elongate and 

 the thorax less transversely shaped than is the case with most of 

 the other representatives of the genus Mimastra, it would scarcely be 

 deemed sufficient to estabhsh on these differences alone another 

 genus, as, moreover, the open coxal cavities and the unarmed tibise 

 are characteristic of the present genus. 



Galerucella virida, sp. nov. 



Oblong, rather convex; testaceous; antennae, tibiee, and tarsi 

 fuscous ; above pale green, closely punctured ; the head, thorax, and 

 the elytra narrowly margined with flavous. 



Length 4 lines. 



Head very finely and closely punctured, with a fine longitudinal 

 central groove, the vertex green, the sides narrowly flavous ; the 

 anterior margin of the clypeus straight ; labrum and palpi piceous. 

 Antennae inserted just above the lower edge of the clypeus, about 

 half the length of the body, fuscous, the third joint one half longer 

 than the second, the following ones slightly longer. Thorax three 

 times as broad as long, the sides and the anterior margins nearly 

 straight, the posterior angles slightly oblique ; surface finely pubes- 

 cent, closely and finely punctured, obsoletely depressed near the 

 base and at the sides, green, opaque ; the lateral margins narrowly 

 flavous, the anterior angles with an elongate narrow piceous spot. 

 The apex of the scutellnm broadly truncate, the surface finely punc- 

 tured, pale green. Elytra more evenly and finely punctured than 

 the thorax, covered with short yellowish pubescence, the lateral 

 margins narrowly flavous, the disk pale green. Underside and legs 

 testaceous ; the knees, tibise, and the tarsi fuscous or piceous. Tibise 

 unarmed ; claws bifid ; anterior coxal cavities open. 



A single specimen. 



Galerucella ceylonensis, sp. nov. (Plate XI. fig. 12.) 

 Testaceous ; apical joints of the antennse fuscous ; head and 



