224 



HYMENOPTERA. 



Fiff. 151. 



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 

 leaA'es, but I did not succeed in 

 raising the saw-H}'. On describing 

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

 ton, he kindly sent me alcoholic 

 specimens of larvaB (without the 

 woolly substance, which dissolves 

 and disappears in alcohol) found 

 feeding on the hickory, which are 

 apparentl}'^, from the comparison of 

 alcoholic specimens, identical with tlie Butternut Selandria. 

 The adult % (Fig- 151, <?, a, cocoon), he has named /S. caryoe^ 

 of which he has kindl}^ furnished 

 me with the subjoined description.* 

 Alhm^as is closely related to Se- 

 landria, both in its structure and its 

 habits, but differs in having the an- 

 tennsc short and somewhat clavate. 

 A.basilaristiayis a common species. 



The Pine saw-fl}', Loj^hyrus^ may be known by the feathered 

 antennaj of the male. L. ahietis Harris (Fig. 152, female) 

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

 brown beneath, while the female is yellowish brown above. 



Fiar. ir)2. 



* Selandria carym Norton, nov. sp. (Belonging to tribe 2. Under wings with one 

 middle cell. Div. A. Antenna3 flliform, short). 



Female. Color shining bhick. The pro- and mesothorax and scutellnni rnfous. 

 the ai)ex ofthc latter black; the nasus and legs white, with their tarsi blackish; the 

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

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

 the two preceding. Nasus slightly incurved. Claws of tarsi apparently bifid, 

 Wings subviolaceons. Lanceolate cell iietiolate, the first submedial cell above it, 

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

 other spefies have this cell discoidal), the marginal cell with a cross nerviire, and 

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

 The submedial cell extended nearly to margin. Length, .23 of an inch. Expanse 

 of wings .-to of an inch. 



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

 The larva; Iced upon the leaves of the hickory (.Jiiglans squamosa.) They are 

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

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

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

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



