12 JOHN B. SMITH. 



Tcplda is agiiin smaller and shorter winged. It is somewhat less 

 blue in tint, the median shade prominent, reniform broad, the sides 

 rounded, and the orbicular not extending below the median vein. 

 The harjx's of the male narrow from both sides to the tip, where 

 they are drawn out into a long, slender, acute process. The clas])er 

 is moderately long, only a little curved and tapers to a point. 



Querquera has much the same ground color, but the niaculation is 

 not contrastingly written. The black markings at base are promi 

 nent ; the space between the ordinary spots is black; the reniform 

 is brownish, and there are two black patches preceding the s. t. line. 

 All else is subdued or lost and the species looks odd as well as dis- 

 tinctive. .It is probable that this species on a lichen covered tree is 

 l)ractically invisible so long as it remains quiescent. In genital 

 structure it resembles tepida ; but the clasper is much stouter and is 

 bluntly terminated at tip. At the base of the clasper is a two- 

 pronged corneous process which seems to serve as an accessory to it. 



Viridipallem is of a uniform greenish gray and all the n)acula- 

 tion is present, but it is all smoky or of a darker gra}'^, without 

 obvious contrasts of any kind and without a distinct black point 

 anywhere in the wing. This form would be invisible on the trunk 

 of a beech or po[)lar, or on a lichen covered stone. The species is 

 very rare and I have no male for dissection. 



Pexdbt and diJatonda are large, smoky brown species, with large 

 reniform and a black line extending from the tip of the claviforni 

 to the t. [). line, thus connecting with the t. a. line. The transverse 

 niaculation is complete, and the s. t. space is somewhat j)aler than 

 the rest of the wing before the s. t. line. They difier from all the 

 rest of the species in the prominent abdominal tufts. 



Pexata is the darker of the two and has a rough, squamose ap- 

 pearance. The ordinary spots, though large, are not contrasting or 

 prominent, and there are no smooth shadings in the fore wings. The 

 harpes of the male are moderate and narrow somewhat to an ob- 

 tusely rounded tip, which is inwardly fringed with spinules. The 

 upper margin near the tip has two prongs, arising from a corneous 

 ridge, the outer shorter and pointed, the inner loiiger, more even and 

 rounded at tip. The clasper is a short, thick, blunt, corneous process. 

 In this structure the insect is nearer to the type of the first series 

 than to tho.se with whom its ornamental features associate it here. 



Pexata has bee'n considered as a form of the European ingrica, 

 and has a superficial resemblance to it. But the male characters of 

 iHt/ririi arc entirely ditierent and the two are not even closely related. 



