SCELIDA. 607 



is of a more slender shape than usual, and has the thorax proportionately narrower. 

 The elytra are green or blue, finely rugose, with traces of narrowly raised longitudinal 

 lines in the male. The metallic green under surface covered with yellowish pubescence 

 is a character which at once separates 8. viridis from any of its allies except S. bella. 



2. Scelida (?) antennata. (Tab. XXXIV. fig. 13.) 



Piceous below ; the lower part of the head and the thorax fulvous : antennae with the apical joints widened ; 

 elytra metallic green, rugosely punctured. 



Length 3 lines. . ,. 



Head elongate, distinctly longer than broad, the upper portion greenish-piceous, this colour surrounding a 

 fulvous spot, the lower part of the face flavous ; antennae black, the three basal joints testaceous below 

 pubescent, the third joint one half longer than the second, the fifth to the tenth joints slightly curved and 

 widened in the middle ; thorax subquadrate, one half broader than long, the surface finely punctured, 

 bright flavous, shining ; elytra elongate, parallel, bright metallic green, very closely punctured and trans- 

 versely rugose ; underside piceous, with a slight purplish gloss, clothed with whitish pubescence ; the cox* 

 fulvous, the anterior pair black at the base; the posterior femora rather stout; the first joint of the 

 posterior tarsi as long as the following two joints together. 



Hob. Mexico, Juquila (Edge). 



A single specimen. S. antennata differs from any of its allies in the shape of the 

 joints of the antennee and in the rather thickened posterior femora ; the latter, however, 

 are not so stout as they are in the Halticinee. This species should probably be placed 

 in another genus. 



3. Scelida glabrata. (Tab. XXXIV. fig. 14.) 



Flavous, the terminal four joints of the antennae fuscous ; head and thorax impunctate; elytra metallic green, 



entirely impunctate. 

 Length 4| lines. , 



Sab. Mexico, Capulalpam (Salle). 



The entirely impunctate upper surface of this species, of which a single specimen 

 only is before me, distinguishes it at once from any of its allies ; in structural details it 

 does not differ. 



4. Scelida rugosa. (Tab. xxxin. fig. 8.) 



Reddish-fulvous, the terminal joints of the antennae and the tarsi fuscous ; thorax sparingly punctured, sub- 

 quadrate ; elytra dark metallic green, coarsely rugose and wrinkled. 



Length 4 lines. 



Head impunctate; labrum testaceous; palpi piceous; antennae half the length of the body, the five lower 

 joints testaceous, the rest fuscous, the fourth joint slightly longer than the preceding and the following 

 joints ; thorax slightly broader than long, the sides nearly straight, very slightly narrowed towards the 

 base the surface flat, with two obsolete foveae at the sides, and furnished with a few fine punctures ; 

 scutellum fulvous ; elytra parallel, subcylindrical, the entire surface strongly rugose and transversely or 

 longitudinally wrinkled, the interstices impunctate; underside and femora fulvous, the knees and the 

 tibise testaceous, -the tarsi fuscous. 



Bob. Mexico, San Miguel del Rio (Salle). 



