86 PROC. ENT. SOC. WASH., VOL. 20, NO. 4, APR., 1918 



punctured like the rest of the head; postocellar line longer than the 

 ocellocular line; antennae twenty-two-jointed; hypopygidium broadly 

 rounded. Black; legs below trochanters reddish-yellow, posterior femora 

 partly dusky; wings as in female. 

 The male varies but little. 



Type-locality. Rosslyn, Virginia. Thirty-seven females and 

 four males from larvae on Pinus virginiana, bred by Dr. H. G. 

 Dyar for whom the species is named. 



Type Cat. No. 21722 U. S. Nat. Mus. 



Neodiprion (Neodiprion) scutellatus, new species. 



Related to edwardsii (Norton) but may be separated by the 

 cephalo-caudad length of the scutellum being greater than the 

 width and by the parted postocellar area. 



Female. Length 7.5 mm. Lab rum rather narrowly rounded; clypeus 

 with a narrow median notch, apical part depressed, shining, transverse 

 ridge truncate, basal part somewhat opaque; antennal foveae large con- 

 fluent with the supraclypeal foveae; no lateral foveae; antennal furrows 

 continuous, broken by the" lateral ocelli; middle fovea narrow, well de- 

 fined, continuous with the broader and shallower ocellar depression; post- 

 ocellar area well defined about four times as long as the cephalo-caudad 

 length, strongly convex, parted by an impressed line, rather more sparsely 

 punctured than the vertex; postocellar line longer than the ocellocular 

 line; sparsely irregularly punctured, the punctures on the front closer; 

 antennae twenty-jointed; meso-prescutum and -scutum very sparsely, 

 finely punctured; scutellum and mesoepisternum nearly or quite impunc- 

 tate; cephalo-caudad length of the scutellum greater than its width; ter- 

 gum shining, polished; nates polished; pad-like part of sheath narrow; 

 much longer than wide, not touching middle part; the saw is partly ex- 

 serted and shows seven rows of regular teeth on the lower gonapophyses, 

 and the upper gonapophyses serrate apically; appendiculation of the 

 hind lanceolate cell a little longer than the transverse median vein. Red- 

 dish-luteous; flagellum, base of mandibles, antennal furrows to ocelli, 

 spot enclosing ocelli, suffuse spots on scutum and prescutum and meta- 

 thorax black or brownish. Wings hyaline, faintly yellowish; venation 

 very pale brown, stigma yellowish-brown. 



Type-locality. Seattle, Washington. One female collected by 

 Mr. T. Kincaid. Another label bears the name "Fir" on it. 

 Type Cat. No. 21723 U. S. Nat. Mus. 



Neodiprioii (Neodiprion) mundus, new species. 



Closely allied to scutellatus and may prove to be only a variety 

 of that species, it differs in the following manner: 



