THE CANADIAN ENTOMOLOGIST 233 



NEW SAW-FLIES FROM MAINE AND NEW YORK (HYMI^.NOPTERA). 



BY ALEX. D. MaCGILLiVRAY. 

 University of Illinois, Urbana, 111. 

 All the adults of the following species were reared from larvje. They are 

 published at this time in order that the names can be used with descriptions of 

 the larva^. 



Pteronidea evanida, n. sp. — Feniale. Body black with the following 

 parts rufous: supraclypeal area, clypeus, labrum, mandibles, occipital and 

 vertical orbits, extending onto the caudal aspect of head, collar, femora, pro- 

 femora and mesofemora more or less irregularly infuscated, protibise, mesotibiae, 

 protarsi, mesotarsi, abdomen on segments one to six; trochanters whitish; 

 ocellar basin sharply marked with vertical walls, dorsal side of frontal crest 

 three sided; supraclypeal area elevated; median fovea longer than broad, deep, 

 prominent; clypeus faintly semicircularly emarginate; antennae with third, 

 fourth and fifth segments subecjual; head, mesonotum, mesoscutellum, and 

 mesopleurae dull, finely setaceous; wings hyaline, veins including costa reddish, 

 stigma darker, margined with rufous; saw-guides with dorsal margin straight, 

 ventral margin strongly convex, oblique, prominent point at dorsal angle. 

 Length 7 mm. 



Male. — Male differs in having median fovea longer, legs and collar lighter 

 in colour, and abdominal segments one to five and lateral portions of six rufous. 



Habitat. — Orono, Maine. Maine Agricultural Experiment vStation, Subs. 

 119, 111, 134. 



This species is near fulvicr us Prov., but the two species are distinguishable 

 by the form of the median fovea. 



Pteronidea edura, n. sp. — Female; Body black with the following parts 

 whitish: supraclypeal area, clypeus, labrum, mandibles in part, mouth-parts, 

 collar, tegulae, and legs beyond the middle of the coxae, except the distal half of 

 metatibiae and metatarsi; following parts rufous: edge of frontal crest, oc- 

 cipital and vertical orbits faintly, caudal portion of first abdominal segment, 

 second to sixth segments entirely, and cephalic part of sixth segment; ocellar 

 basin moderately distinct; frontal crest rounded, unbroken, three-sided on 

 dorsal margin; median fovea distinct, long, wedge-shaped depression; clypeus 

 broadly angularly emarginate; antennae with third and fourth segments sub- 

 equal, fourth segment longer than fifth; mesonotum dull, setaceous, meso- 

 scutellum polished, mesopostscutellum densely punctulate; wings hyaline, 

 dotted with numerous black spinulse, veins black, proximal portion of costa 

 paler; saw-guides with dorsal margin concave, ventral margin convex and 

 converging toward dorsal margin, distal end bluntly pointed. Length 8 mm. 



Habitat.— Ithaca, New York, H. Yuasa. No. 8.45(?)^-l-l. 



This species runs to lombardcB Marl., but is dififerently coloured from the 

 female of that species. 



Pteronidea effusa, n. sp. — ^Female. Body black with the following 

 parts yellowish white: supraclypeal area, clypeus, labrum, mandibles, mouth- 

 parts, collar broadly, tegula?, and legs beyond distal ends o,f coxae, except in- 

 fuscated distal half of metatibiae and the black metatarsi; following parts rufous: 

 frontal crest, occipital and vertical orbits, lateral third of lateral lobes of meso- 

 notum indistinctly, and abdominal segments one to seven except small cephalic 



October, 1920 



