224 HYMENOPTERA. 



and were curled on the leaf. They eat out the edge of the 

 leaf of the butternut tree. Sometime during August, two 



cocoons were spun between the 

 leaves, but I did not succeed in 

 raising the saw-fly. On describing 

 the larva, in a letter to Mr. E. Nor- 

 ton, he kindly sent me alcoholic 

 specimens of larvae (without the 

 woolly substance, which dissolves 

 and disappears in alcohol) found 

 feeding on the hickory, which are 

 apparently, from the comparison of 



alcoholic specimens, identical with the Butternut Selandria. 

 The adult fly (Fig. 151, <T, , cocoon), he has named S. caryce, 

 of which he has kindly furnished 

 me with the subjoined description.* 

 Allantus is closely related to Se- 

 landria, both in its structure and its 

 habits, but differs in having the an- 

 tennae short and somewhat clavate. 

 A. basilaris Say is a common species. Fig. 152. 



The Pine saw-fly, Lophyrus, may be known by the feathered 

 antennae of the male. L. abietis Harris (Fig. 152, female) 

 infests the fir and pitch-pine. The male is black above and 

 brown beneath, while the female is yellowish brown above, 



* Selandria caryte Norton, nor. sp. (Belonging to tribe 2. Under wings with one 

 middle cell. Div. A. Antenna; filiform, short). 



Female. Color shining black. The pro- and mf sothorax and seutellum rufous, 

 the apex of the latter black; the nasus and legs white, with their tarsi blackish; the 

 base of coxa' and a line down the upper side of the legs black. Antenna? short, 

 the second joint as long as the first; the four final joints together, not. longer than 

 the two preceding. Xasus slightly incurved. Claws of tarsi apparently bil'nl, 

 Wings snbviolaceons. Lanceolate cell petiolate, the first submedial cell above it, 

 with a distinct cross vein. Under wings with one submarginal middle cell (all 

 other species have this cell discoidal), the marginal cell with a cross nervure, and 

 all the outer cells closed by an outer nervnre, which does not touch the margin. 

 The submedial cell extended nearly to margin. Length, .2T> of an inch. Expanse 

 of wings .40 of an inch. 



" The male resembles the female, but the under wings are without middle cells. 

 The larvae feed upon the leaves of the hickory (Juglans squamosa.) They are 

 found upon the lower side of the leaf, sometimes fifteen or twenty upon one leaf, 

 which they eat from the outer extremity inward, often leaving nothing but the 

 strong midribs. They cover themselves wholly with white flocculent tufts which 

 are rubbed off on being touched, leaving a green twenty-two legged worm, about .75- 



