PI. W. LEWIS. 189 



p. flaTliS Cress. 9 • — Leraoii-yellow ; base of clypeus, vertex and cheeks 

 tinged more or less with fulvams; clypeus subdepressed. subquadrate, sparsely 

 punctured, each puncture giving out a shoj't fulvous hair, apex angular, ciliated 

 the lateral angles with two teeth, the inner one the longest: tips of mandibles 

 black ; spat^e between the antennae protuberant ; antennse entirely fulvous, darker 

 above; prothorax faintly tinged with fulvous, its posterior margin yellow ; meso- 

 thorax fulvous, the incisures and a longitudinal black line on the disc abbreviated 

 posteriorly, black ; a faint line on each side of the disc and the lateral margins 

 yellow; metathorax with a deep, central, longitudinal channel; tegulse with a 

 median fulvous spot. Abdomen bright lemon-yellow, not longer than head and 

 thorax, snbsericeous, a central longitudinal streak posteriorly, a spot at the base 

 of the first segment, a narrow line across the middle, slight stains on each side of 

 the first and second segments at base, a transverse spot on each side near the apex 

 of the second to fifth segments connected by a slender arcuated line (both above 

 and beneath) fulvous; basal segment triangular, its apical breadth equal to its 

 length. Ijegs faintly tinged with fulvous at base and on the tarsi. Wings varied 

 with fuliginous, darker .along the costa, a bright violaceous reflection, base of both 

 wings, a narrow longitudinal streak through the middle of the wing, and most 

 of the second submarginal cell subhyaline ; stigma, costal vein from the stigma 

 to the base and the nervures at the base of the wiug fulvous, the J'est black. 

 Length 18 mm. 



Hab. — New iNIexico. 



I*, aiialieiineusis Prov. 9 • — Black with yellow spots ; clypeus, mandibles, 

 front, orbits, an angular band above the antennse and cheeks yellow; antennse 

 beautifully honey-yellow without any spot. Thorax black ; anterior and poste- 

 rior border of the prothorax, tegulse, spot on the sides, a line under the hind 

 wings, the borders of the scutellum and postscutellum, and two longitudinal 

 lines on the metathorax yellow. Abdomen sulphur-yellow: all the segments 

 with a black band at the base ; the band on the second and third segments is 

 prolonged into a triangular point in the middle; the basal segment is black with 

 the top yellow, and a lateral yellow spot contiguous to the apical baud. Feet 

 yellow, coxfe and two-thirds of the femora, with a spot on the inside at the end 

 of the hind legs black. Wings smoky yellow, nervures brown. 



% . — Abdomen almost entirely yellow, having only a narrow black line at the 

 base of the segments. Length 17-18 mm. 



Hab. — Anaheimen, California. 



P. iiestor iFab.). — Fuscous; front yellow. Head fuscous, front and mouth 

 widely yellow ; antennse black, ferruginous beneath. Thorax fuscous, with the 

 anterior margin, two very fine, oblique lines on the front, and two abbreviated 

 lines under the scutellum yellow ; scutellum ferruginous. Abdomen ferruginous, 

 a black spot at the base of each segment and the margins yellow. Feet ferru- 

 ginous. Wings ferruginous; a little larger than V. marginalis. 

 Hab. — North America. 



P. apacliiis Sauss. — '•Ferruginous, much marked with yellow. Abdojnen 

 subdei>ressed. ovoid; segments bimaculate with sulphur-yellow; mesothorax 

 marked with two suli)hur-yellow lines. Wings ferruginous." 



Hab. — New Mexico and Souora (Sauss.). 



TRANS. AM. ENT. SOC. XXIV. JUNE, 1897. 



