NODOSTOMA. 305 



523. Nodostoma chalceum, sp. n. 



Dark aeneous ; antennae, tibiae and tarsi more or less flavous ; 

 abdomen fulvous. 



$ . Head finely and very remotely punctured ; clypeus not 

 separated in front from the face, more strongly punctured, anterior 

 margin fulvous, thickened at the sides, semicircularly emarginate ; 

 labrum fulvous ; palpi flavous : antennae slender, pale fulvous or 

 flavous, third arid fourth joints equal, terminal two elongately 

 thickened. Thorax twice as broad as long, sides very strongly pro- 

 duced into a tooth behind the middle, strongly obliquely narrowed 

 in front and at base, anterior sulcus deep and entire, surface closely 

 and more strongly punctured than the head. Scutellum trigonal. 

 Elytra oblong, shoulders and basal portion strongly raised, the 

 latter with a deep depression ; surface deeply foveolate punctate- 

 striate at base within depression, more finely and remotely so 

 posteriorly : sides below shoulders with two acutely raised costse. 



Length 2% mm. 



Hob. Assam (Coll. Jacoby). 



Very distinct on account of its system of coloration, elytral 

 sculpturing, &c. 



524. Nodostoma splendens, Hope (Eumolpus), in Gray's Zool. Misc. 



1831, p. 30; Lefev. (Colasposoma) Cat. Eumolp. 1885, p. 107. 



Black ; basal three joints of antennae fulvous. Elytra aureo- 

 cupreous. 



Head strongly and rather closely punctured : labrum fulvous ; 

 antennae with the third joint shorter than the fourth, terminal 

 joints very elongate. Thorax transverse, subangulate near base, 

 evenly, strongly and closely punctured. Elytra with lateral de- 

 pression at sides below base, the latter rather strongly punctured, 

 posterior portion finely punctured. Legs black ; femora unarmed. 



Length 6 mm. 



Hal. Nepal. Type in Brit, Mus. 



This insect was described from a single, apparently female, 

 specimen, and because of the useless diagnosis of the author 

 was placed in the wrong genus by Lefevre. It is a true Nodo- 

 stoma of broadly subquadrate-ovate shape, and well distinguished 

 by the black colour of all the parts except the elytra which are 

 bright cupreous. The insect seems to be very rare, as I have seen 

 only the type specimen ; it belongs to the group containing the 

 largest species of the genus. 



525. Nodostoma semipurpureum, Jac. Ann. Mus. Civ. Genova, xxxii, 



1892, p. 902. 



Beneath metallic dark blue, above purplish ; basal joints of 

 antennae fulvous. 



Oblong ; head distinctly but not closely punctured, space at 

 VOL. i. x 



