186 AMERICAN HYMENOPTERA, 



rest of the abdomen ferruginous. Legs ferruginous, knees, tibiae and tarsi, yel- 

 low ; the posterior tibife ferruginous at the end. Wings ferruginous, brown in 

 the radial : third cubital cell regularly lozenge shaped. 



'J, . — Antennae scarcely obscure above ; borders of the orbits and the yellow of 

 the clypeus forming a yellow V on the front of the face. 



Hab. — Georgia, Louisiana, California, Texas. 



P. rubiginosiis Lepel. — Insect entirely clear reddish yellow: a little black 

 around the ocelli ; antennae blackish above from the fourth segment up. Thorax 

 bearing a golden down. Wings brown, with violet and golden reflections. 



Var. A. — Three black lines on the mesothorax, one on the metathorax. Length 

 18 mm. 



Hah. — Pennsylvania, Illinois, Georgia, Missouri (Murtfeldt), 

 Texas. 



I*, perplexus Cress. % . — Ferruginous, strongly golden sericeous; face and 

 clypeus flat, dull yellow-white, pale on orbits and above insertion of antennae ; 

 mandibles and cheeks beneath more or less dull yellowish white ; antennae ferru- 

 ginous, paler at base beneath, joints above more or less black, especially those at 

 the apex ; collar more or less black : prothorax generally more or less margined 

 with pale yellow ; mesothorax black, with two central, longitudinal, more or less 

 distinct ferruginous lines; scutellum sometimes divided centrally by a black line; 

 metathorax with a broad, deep, longitudinal groove, finely and transversely 

 striated, ferruginous, generally with three longitudinal black lines, which are 

 sometimes subobsolete : sometimes the metathorax is entirely ferruginous, except 

 the groove, which is always black, sometimes entirely black, except a spot on the 

 flanks and a stripe on each side of the groove; pleura generally yellowish be- 

 neath, more or less black laterally. Abdomen of ditferent shades of ferruginous, 

 strongly golden sericeous, the three basal segments have frequently a more or 

 less distinct, narrow yellow apical margin ; the base of the second, third and 

 fourth segments is more or less broadly black, sometimes obsoletely so, sometimes 

 only the second or third, or fourth is so marked ; ventral segments more or less 

 markpd with black at the base, the intermediate segments sometimes banded 

 with yellow. Legs ferruginous, the four anterior coxae, femora and tibiae beneath 

 more or less pale yellowish, all the coxae more or less black above. Wings fus- 

 cous, darker along the costa and in the marginal cell ; second and third submar- 

 ginal with subhyaline streaks. Length 18-21 mm. 



Hab. — Texas, Bermuda. 



P. generosiis Cress. % . — Head subsericeous, face long, dull luteous; ante- 

 rior orbits, a band above the antennae filling up the emargination of the eyes, and 

 mandibles, yellowish white or luteous; venter and occiput black ; cheeks and a 

 dot on each side behind the ocelli, ferruginous ; clypeus longer than wide, flat, 

 sparsely and finely punctured, apex angular; ridge between the antennae sub- 

 tuberculate above; antennae long, black above, fulvous beneath, scape yellowish 

 beneath, narrowly edged with fulvous above ; prothorax fulvo-ferruginous, black 

 laterally, upper margin narrowly edged with yellowish ; mesothorax black, with 

 two short ferruginous stripes on the anterior middle ; scutellum black, with two 

 ferruginous spots ; postscutellum ferruginous, narrowly margined with black ; 

 metathorax transversely and rather coarsely wrinkled above, with a broad, shallow 

 groove down the middle, a slender stripe on each side of the groove and a spot 



