260 Journal New York Entomological Society. t Vo1 - xxvn. 



Apical half of pronotum brown with white subapical 



vitta ; hairy, broad, almost reaching apex of elytra in 



female. Length 5-5^ mm. .. .compacta Gibs. & Wells. 

 FFF. Pronotum dark brown, darker anteriorly, to black. 

 G. Pronotum shining; not mottled. 



Reddish brown to black; slender, 6-7 mm., in length; 

 face, subapical and more or less arcuate lateral 

 vittae, bright yellow, varying to white ; legs pale, 

 femora usually black anteriorly. 



<$ fraterna Gibs. & Wells.i 



Rich brown; very slender, 4^-5^ mm. in length; 

 broad, straight yellow marginal (5) or sub-marginal 

 (<^) vitta from eye to just beyond middle, with a 

 transverse subapical vitta in the male. 



flavicephala Godg. 



Dark brown; robust, 5-5^ mm. in length; narrower, 

 strongly arcuate cream-colored vitta from over 

 humeri to mid-lateral margin. .<£ pubescens Emmons. 



Dark brown to black ; much larger and heavier, 7-8 

 mm. in length; vittas much less strongly defined, at 



times almost obsolete J 1 salamandra Fairm. 



GG. Pronotum dull brown, more or less mottled with pale. 



Olivaceous brown, usually mottled, especially anter- 

 iorly, apically brighter red-brown ; vittse and mid- 

 dorsal pale spot sub-obsolete or obscured by anterior 

 mottling. Densely hairy, robust, smaller species, 

 S^-6H mm. in length $ pubescens Emm. 



Dull reddish brown, more or less mottled anteriorly ; 

 vittse and mid-dorsal pale spot cream, usually 

 strongly marked. Very hairy, large robust species. 

 Length 7-8 mm 5 salamandra Fairm. 



EXPLANATION OF PLATE XXIII. 



Figures from which plate was made were drawn by Mr. Chris. E. Olsen. 

 Ophiderma fratern a Gibson & Wells. $. (0. flava Goding. <$. ?) 

 Ophiderma flava Goding. $. 

 Ophiderma evelyna Woodruff. $. Allotype. 

 Ophiderma evelyna Woodruff. 5- Type. 

 Ophiderma flaviguttula Goding. 5. 



Ophiderma flaviguttula Goding var. definita Woodruff. 5- Type. 

 Ophiderma grisea Woodruff. 5- Type. 

 Ophiderma flava Goding. Elytral hook. 

 Ophiderma evelyna Woodruff. Elytral hook. 



1 Regarded by the author, on circumstantial evidence, as the male of O. 

 flava Godg. 



