216 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.57. 



Entomology, No. Hopk. U. S. 13649 e^ Material reared by William 

 ]Middleton. 



Type.— Cat. No. 3485, U.S.N.M. 



PTEKONEDEA PLESU. new species. 



This species is closely allied to Pteronidea salicis-odorata (Dyar), 

 but the stigma is shorter and distinctly angulate near the base and 

 the emargination of the clypeus is U-shaped and not V-shaped. 



Female. — Length 6 mm.; length of the antennae 4.5 mm. Robust. 

 Anterior margin of the clypeus deeply emargmate, the emargination 

 U-shaped, the lobes broad, rounded apically; supraclypeal area tri- 

 angular in outline, gently convex; supraclypeal foveae punctiform, 

 confluent with the antennal foveae ; middle fovea elongate and break- 

 ing through the crest by a short narrow channel; frontal crest faintly 

 broken; ocellar basin pentagonal, closed above, the walls well defined; 

 postocellar furrow nearly obsolete; postocellar area broad; posto- 

 cellar line subequal with the ocellocular Ime; head, seen from the 

 side, with the anterior margm arched, not angular, antennae di- 

 stinctly tapering, the third joint a trifle shorter than the fourth; head 

 and thorax shining; stigma distinctly angulate a little before the 

 middle, two and one- third times as long as its greatest width; third 

 cubital cell slightly wider apically and one-fifth longer than the third 

 intercubitus ; second recurrent fully one-third the length of the second 

 intercubitus from the apex of the cell; sheath straight above, rounded 

 at the apex and sharply oblique. Yellowish-ferruginous; antennae, 

 head above the frontal crest and between the antennal furrows, 

 scutum, prescutum,scutullum, meta thorax medianly, tergites median- 

 ly, apex of the sheath, black; legs the color of the body except the 

 apical joints of the four anterior tarsi and apical half of the pos- 

 terior tibiae and all of the posterior tarsi are black; wings hyaline, 

 iridescent; venation, including the stigma, dark brown. 



Type locality. — Westbury, Long Island, New York. Described 

 from three females reared from larvae collected from Populus ire- 

 muloides and recorded under Bureau of Entomology No. Hopk. 

 U. S. No. 136560, Material collected by A. B. Champlain, and reared 

 by William Middleton. 



Type.— C&t. No. 21796, U.S.N.M. 



AMAURONEMATUS WHITNEYI, new species. 



In Marlatt's key to the species, runs to orhitalis Marlatt but it is 

 larger and has quite different characters in the head. It bears a 

 superficial resemblance to similis Marlatt, but may be easily distin- 

 guished from that species by the pale upper part of themesepisternum. 



Female. — Length 8.25 mm. Robust. Clypeus gently convex, the 

 apical margin with a deep V-shaped emargination, the lobes broad, 



