1916 THE BUTTERFLIES OF NEW ENGLAND. 



Eyes pubescent. 



A row of well developed bristles on the lateral margins o( the facial depression reach- 

 ing nearly or quite to a point opposite the lowermost one of the frontal rows (Phoro- 

 cera) . 

 Antennae black ; abdomen shining, the second segment with three pairs of bristles, 



the third with two pairs before the hind row P. saundersii. 



Paljji and antennae more or less yellow; second abdominal segment with not more 

 that! two pairs of bristles. 

 Second and third abdominal segments with a pair of bristles toward the front ; 



claws and pulvilli of male small P. comstocki. 



Second and third segments without anterior pair of bristles, the posterior 



bristles strong P, ed^vardsii. 



Above the vibrissal bristle, near the oral margin, there are only a few small bristles 

 (Exorista). 

 Palpi yellow. 



Abdomen at sides and tip broadly red; legs black E. scudderi. 



Abdomen without red on the sides E. blanda. 



Palpi black or dark brown. 



Second abdominal segment with a median and posterior pair of bristles ; abdo- 

 men in general bristly E. birsuta. 



Second segment with a posterior, but no median pair of bristles. 



Abdomen black, marmorate with silver gray, the fourth segment brassy 



yellow pollinose E. f utilis. 



Abdomen largely shining black, no yellow pollen on the fourth segment... 



E. theclarum. 



ACROGLOSSA, gen. nov. 



Allied to Frontiua, but differs in the distinctly jointed arista, and in the slender pro- 

 boscis. Front broad in both sexes, a little narrower in the male, nearly straight longi- 

 tudinally, and but little convex transversely; arrangement of the bristles in the male, 

 as follows: Two bristles near the upper angle of the eye, directed posteriorly; a pair 

 just in front of the ocelli, directed exteriorly and anteriorly; two rows of moderately 

 strong bristles on each side, the inner row descending on the sides of the face as low 

 as the base of the third antennal joint. In the female, there is, in addition to the fore- 

 going, two or three bristles on each side near the eye, directed anteriorly. Antennae 

 rather slender, reaching nearly to the oral margin ; third joint in the male fully three 

 times, in the female scarcely twice, as long as the second; arista thiclvened nearly its 

 wliole length, distinctly jointed, the second joint long, and forming with the distal 

 joint a more or less distinct angle. Margins of facial depression with a row of mod- 

 erately stout bristles, reaching nearly as high as the base of the third antennal joint; 

 sides of the face with bristles ; cheeks without bristles, a row along the oral mar- 

 gin. Proboscis slender, horny, with small labella, projecting a short distance be- 

 yond epistoma ; palpi slender, cylindrical. Eyes bare. ScutelUim with three pairs of 

 marginal bristles of nearly ecjnal size; a smaller pair on the disk. Abdomen conically 

 ovate, clotlied with short, bristly hairs ; second segment with a pair of stoat bristles 

 on the posterior margin ; third and fourth segments each with a posterior row. Pulvilli 

 of male elongate. First posterior cell open at some distance before the tip of wing ; 

 great cross-vein nearer to the angle of first posterior cell than to the anterior cross- 

 vein. 



The relationship of this genus is closest to Frontina, to which it bears 

 not a little resemblance in the broad, bristly front and general appearance ; 

 the structure of the arista and proboscis, however, will immediately dis- 

 tinguish it. 



