Dec, 1919.] Woodruff: Review of Genus Ophiderma. 259 



assignment of any specimen of the genus in hand may readily be 

 determined. 



Key to the Species. 

 A. Terminal areole transverse, scarcely bent on its basal line. Dorsal line 

 somewhat elevated posteriorly, but not at all compressed, behind with a 



slight sinus nigrocinctus VanD. 



AA. Terminal areole triangular at base. 



B. Color bright green, fading to yellowish. 



C. Pronotum short, scarcely surpassing abdomen. 



Spots on face and crescents over eyes (pronotal callosities) 



bIack pallida VanD. 



CC. Pronotum long, extending beyond abdomen half way or more 

 toward apex of elytra. Face immaculate. 

 Larger species, 6^/2-7 mm., usually washed with reddish pos- 

 teriorly; elytral basal hook broad and blunt $ fiava Godg. 



Smaller species, 6-614 mm., without reddish wash ; elytral basal 



hook more slender, upturned apically $ evelyna n. sp. 



BB. Color light green, apical half bright pink. Length 5-6^ mm. 



pubescens var. australis n. van 

 BBB. Color gray, brown or black, marked with lighter. 



D. Elytra with dark band across middle. 



E. Gray without reddish shades ; vittae white ; mid-elytral band 

 black. Rather robust across humeri. 

 Pronotum gray with more or less admixture of pale buff; 

 between lateral and sub-apical vittae blackish; apex of 



pronotum very acute. Length 6 mm $ grisea n. sp. 



EE. Testaceous to reddish brown ; vittae cream ; mid-elytral band 

 dark brown. Slender. 

 Pronotum pale testaceous ; pattern almost obsolete, except 

 at mid-lateral pronotal margin. Length $y 2 mm. 



$ flaviguttula Godg. 

 Pronotum light reddish brown to dark ferruginous or black; 

 pattern well defined, though often interrupted by excess 

 of pigment. Length <? 5-5^ mm., $ 5^-6 mm. 



flaviguttula var. definita n. var. 

 DD. Elytra without dark band across middle. ■ 



F. Pronotum light brown, darker posteriorly. 



Anterior half of pronotum more or less mottled with 

 yellowish green ; face and legs greenish yellow ; arcuate 

 lateral and subapical vittae yellow varying to white. 



Length 5 y 2 mm ^ evelyna n. sp. 



FF. Pronotum gray or grayish brown anteriorly, lighter just 

 beyond middle. 



