73 
subequal; procidentia narrow, truncate, not projecting; claws not very 
deeply notched, rays subequal; intercostal vein at right angles to costa; 
third cubital cell elongate, scarcely divaricating 5 stigma not very 
broad, rounded on lower margin; venation otherwise normal. Color 
black: clypeus, labrum, palpi, extreme angles of pronotum, tegulae, 
apices of coxa*, tips of femora, including nearly all of anterior x>airs, 
anterior tibiae, and tarsi more or less light yellowish; posterior tibia' 
and tarsi infuscated, anterior tarsi indistinctly so; veins dark brown, 
including costa nearly to base; stigma brown, unicolorous. 
Two males, Cresson's type specimens, from Nevada and one from 
southern California. (Coll. Am. Ent. Soc.) 
4G. Pteronus decoratus Provancher. 
1888. Nematus decoratus Provancher. Add. Faun. Can. Hym., p. 309. 
Male. — Length 5.5 mm. ; rather robust, shining ; clypeus very broadly, 
rather shallowly emarginate, lobes small, rounded; ridges about ocellar 
basin indistinct and rounded ; vertex smooth, glistening ; antennal fovea 
scarcely present; antennae rather stout, tapering, not longer than head 
and thorax, joints 3 to 5 subequal; procidentia minute, scarcely project- 
ing; venation normal; stigma not very broad; apex of costa greatly 
enlarged, almost as large as stigma; claws deeply cleft, inner ray par- 
allel with outer. Color black, shining; orbits, face below antennae, 
pronotum, tegulae, and legs for the most part pallid; femora except line 
on under side, apices of hind tibiae together with lower edges of same, 
and the hind tarsi brown; hind coxa3 brown, except at tip; wings 
nearly hyaline, veins yellowish brown, stigma and costa somewhat paler. 
Redescribed from Provancher's type specimen, kindly loaned me by 
Abbe Huard. The specimen was collected in Florida by Mr. Ashmead. 
It is distinct from any other known species of the genus and represents 
the extreme southern range of this group of sawflies. In characters 
of the vertex it is not typical of the genus to which it is assigned, 
although in characters of claw and otherwise it seems to be a Pteronus. 
47. Pteronus lombardse new species. 
Male. — Length 5.5 mm.; rather slender, shining; clypeus shallowly 
but distinctly emarginate; vertex smooth, glistening; ridges about 
ocellar basin rounded but distinct; venation normal ; intercostal very 
slightly inclined ; stigma moderately broad, rounded on lower margin ; 
procidentia narrow, short, blunt; claws rather minutely notched, rays 
subequal. Color black; clypeus, labrum, palpi, tegulae, and legs from 
trochanters outward except posterior tibiae and tarsi yellowish ferru- 
ginous; posterior tibiae, except bases, and their tarsi strongly infus- 
cated; veins and stigma dark brown; wings very faintly infuscated, 
almost hyaline. 
