PHYTOPHAGOUS COLEOPTERA FROM MENTA WEI 129 



has a more finely punctured thorax and entirely fulvous anterior 

 legs. 



3. Nodostoma dimidiaticorne, sp. n. — Pale flavous, the inter- 

 mediate joints of the antennae dark, thorax with rounded sides, 

 nearly impunctate the base with a narrow sulcus , elytra con- 

 vex, finely punctate-striate. 



Length 1 x / 4 line. 



Of strongly convex shape, the head impunctate, without any 

 frontal elevations, but with a few punctures near the eyes, the 

 lower four joints and the apical one flavous or fulvous, the others 

 black, second and third joint nearly equal, terminal joints slightly 

 thickened, thorax about one half broader than long, the sides 

 evenly rounded, the angles rather obsolete, the surface convex, 

 nearly impunctate, only a few fine punctures being visible under 

 a strong lens, the anterior margin accompanied by an obscure 

 transverse sulcus, scutellum rather long, elytra convex, without 

 depression below the base, the disc finely and remotely punctate- 

 striate, each puncture surrounded by a pale piceous ring, un- 

 derside and legs flavous, the femora unarmed. 



Hab. Si-Oban. 



Amongst the small unicolorous species of this genus, the pre- 

 sent one may be known by its more than usual convex shape, 

 the colour of the antennae, the rounded sides of the thorax and 

 by the want of any elytral depression. 



4. Nodostoma Martini, Lefèv. — The specimens obtained by 

 Dr. Modigliani agree so very nearly with Lefèvre's species, 

 described from Tonkin, and of which I possess a typical specimen, 

 that I cannot separate the Sumatran insect, although Lefèvre 

 has described the thorax as smooth, there are some few fine 

 punctures visible, when the insect is examined under a strong 

 lens ; the only differences I can find, is the entirely pale fulvous 

 colour of the Sumatran specimens, the type being rather darker 

 as well as the legs ; N. laevicollis, Jac. from Sumatra is closely 

 allied, but differs in the coloration of the antennae and legs, 

 and in the unarmed femora. 



Ann. del Mus. CU), rll St. Nat. Serie 2.», Vol. XVII (14 Dicembre 189(3) 'J 



