N0.14.S7. NORTH AMERICAN DIGGER WASPS— FERN ALD. 333 



others rather darker, glistening, with ver}^ minute, scattered punctures 

 and a minute hair here and there; stigma of the first plate near the 

 hinder edge; terminal plate elongate, evenly rounded behind, with 

 rather coarse punctures and hairs near its hinder edge; beneath; fer- 

 ruginous, darker in some places than in others, the terminal plate long 

 and conical, rounded at its tip and bearing a few hairs. 



Wings. — Hyaline, with brownish veins; fore wing; radial cell rather 

 l)road, rounded at its tip; second cubital cell higher than broad; third 

 cubital not reaching the end of the radial; third transverse cubital 

 vein joining the radial cell quite close to the second; first recurrent 

 vein joining the first cubital cell close to the first transverse cubital 

 vein, sometimes even interstitial with it; hind wing; transverse median 

 vein somewhat curved, but as a whole making an acute angle with the 

 median vein; anal vein nearly or quite obsolete beyond the transverse 

 median vein; discoidal vein leaving the cubital some distance behind 

 the transverse median, and quite faintly developed; cubital vein obso- 

 lete beyond the transverse cu])ital, and the radial vein extends but a 

 short distance beyond the latter; tegulaj pale ferruginous, white 

 pubescent, particularU^ on the anterior margin. 



Legs. — Ferruginous, the middle and hind pairs long; fore coxa?, 

 trochanters, femora and tibise with scattered yellowish-white hairs, 

 the femur with a row of them along a faint groove beneath; fore 

 femora longer than the fore tibijB, stout, curved; fore tibiae with a 

 fringe of quite long hairs on the inner and outer sides; fore metatar- 

 sus with a tarsal comb consisting of a fringe of very long, slender 

 hairs; the other tarsal segments with numerous long hairs and slender 

 spines; outer side of middle and hind coxa? pubescent; middle femur 

 straight, slightly longer than its tibia, smooth; tibia with small, whit- 

 ish spines scattered along its surface, its two inner apical spines black; 

 middle tarsi spiny, posterior coxte somewhat pubescent externally; 

 fenuir shorter than the tibia, the former slightl}" pubescent above; 

 tibia pubescent behind, its inner contour straight, its apical spines 

 black, the comb consisting of coarse teeth; tarsi spin}^, claws of all 

 the legs ferruginous, with five blunt teeth and the rudiment of a sixth 

 at the base, the inner two (besides the rudimentar}' one) and the 

 empodium black. (Plate IX, fig. 20.) 



The pubescence in many cases is decidedly golden; the amount of 

 Mack around the ocelli varies, that described above being about an 

 average; the mesonotum is frequently darker than in the type, in some 

 cases being almost black; in worn specimens the middle of the dorsum 

 of the median segment is seen to be black, and the dorsum as a whole 

 tends to be darker than in the type; sometimes the anterior edge and 

 corners of the scutellum are dark like the mesonotum; the bases of 

 the claws tend to be dark; neither recurrent vein of the fore wing is 

 always interstitial; if not it joins external to the transverse cubital 

 Proc. N. M. vol. xxxi— 06 22 



