258 EDWARD NORTON. 



rounded, but protracted to a sharp angle as in Empliytus. One speci- 

 men has bands on the abdomen as in E. viaculutiis. 



Maine, (A. S. Packard.) Illinois, (Coll. Am. Ent. Soc). Conn. 



A specimen from Illinois has the anterior tibiie fuscous and the first 

 submarginal obsolete. 



24. Selandria quercus alba, n. sp. 



Black, with the four anterior legs pure white below the middle of femora, 

 and a white band on posterior tibiae. Length 0.20. Br. wings 0.40 inch. 



% 9 • Shining black, short and compressed ; antennae slightly en- 

 larged in middle, third joint nearly as long as fourth and fifth ; head 

 polished; lower ocellus in an oval basin, with three pits beneath ; body 

 ■wholly black; legs black, the two anterior pair clear white below the 

 middle of femora; tips of their tibiae waxen; the basal two-thirds of 

 posterior tibias and of first tarsal joint white ; tarsi fuscous, apical joint 

 of all the tarsi waxen-white; inner tooth of claws minute, beiieath the 

 middle. Wings hyaline, iridescent, nervures blackish, first submargi- 

 nal cell rounded at base. 



Faruiington, Conn. 



This appears much like S. rosse, but the wings of this are clear and 

 the hinder tibite have a distinct white band. 



The larvae feed on our white oak. I find them in abundance upon 

 some English oaks, (Quercus robur). They are naked, slimy slugs, 

 like those of *S'. cei-cm, 22-footed ; color pale green, at times almost 

 white, enlarged near head. Head white, the six anterior legs amethys- 

 tine brown, tail segment constricted, rather sharp. They feed in com- 

 panies when young, sometimes twelve on a leaf, head outward, devour- 

 ing the epidermis of the under side of the leaf, and not eating holes 

 through. The eo;2:s are not laid in the ribs of the leaf, but in the 

 smooth surface between the upper and lower skin near the tip ot the 

 leaf, where whitish, irregular blotches are soon formed, visible only be- 

 neath, from the centre of which the larva comes forth. 1 have bred 

 many specimens, coming forth in twelve or iburteen days. 



Section 5. — {Selandria), Hartig. 

 Lanceolate cell open at the shoulder, without cross line; under wings with two 



iiiid.lie cells. 

 2b. S. fiavipes. 



Selandria flavipes, Norton, Bost. Proc. viii, 1861, 222, 12, <^ % . 

 Black, with the tegulre, collar and legs yellow-white. Length 0.22. Br. wings; 

 0.4(i inch. 



9 % . Shining black; antcnnjc somewhat enlarged in middle, third 

 joint longest, remaining decreasing rapidly in size and length; apical 

 joint pointed, color toward apex pale; head polished, with three de- 



