WILLIAM G. DIETZ 119 



Holotype: cf; Hazleton, Pennsylvania. May 23, 1916. 



Paratype: cf ; topotypic. 



Very closely resembles P. macrocera Loew, from which it 

 differs in the hairy wings; the abdomen strongly infuscate 

 posteriorly and the differently constructed eighth sternite. 



Pachyrhina urocera spec. n. (PL IV, fig. 5; pi. VI, fig. 25.) 



Yellowish. Antennae of male not elongate, flagellar joints fuscous, yellow 

 at base. Thoracic dorsum subopaque. Inner apical appendage of hypopyg- 

 ium large, conspicuous, turned outward. 



Male. Length, 13.5 mm.; wing, 13.5 mm. 



Head sordid yellowish, shining. Mouthparts and palpi yellowish-fuscous, 

 the last joint of the latter shorter than the preceding joints together. Pro- 

 boscis short, sides infuscate, nasus beset with pale hairs. Antennae not elon- 

 gate, three basal joints pale yellow, the third joint approximately as long as the 

 two scapal joints, flagellar joints infuscate, yellowish at the base, with a verticel 

 of hairs; pubescence fine, short, whitish. Occiput darker on the sides behind 

 the eyes. 



Thorax yellowish-white. Pronotal scutum with a dark line each side. 

 Praescutum subopaque with feeble luster, stripes and space anterior to the 

 parasutural foveae ferruginous, the median stripe somewhat narrowed poste- 

 riorly and divided by an indistinct paler line. Scutum with a slight sheen and 

 broad, oblique, ferruginous stripe each side. Scutellum and postnotum brown- 

 ish-yellow, shining. Pleura and coxae, pale yellow, shining, with whitish 

 sheen. Halteres yellowish towards the base, infuscate apically, knob fuscous, 

 apical edge whitish. Legs long and slender, sordid yellow with dense, fine, 

 appressed, blackish pubescence, tarsi fuscous outwardly, the metatarsi longer 

 than the tibiae. Wings with marked yellow tint, costal cells yellowish-fuscous, 

 stigma fuscous, costo-apical part somewhat infuscate. Veins R and M 1 ' 2 Bnd 3 , 

 very sparsely setulate. 



Abdomen dark yellow; tergites one to seven with a pale fuscous, median 

 spot before the middle of the segment; segments three to eight with a black 

 spot each side and a ventral row of similar spots; eighth sternite with V- 

 shaped emargination, the sides and especially the angles, fringed with long, 

 yellow hairs. Hypopygium reddish-yellow, appendages paler; ninth tergite 

 short, a rounded fovea each side of the median line, lateral angles rounded, 

 the posterior margin with semicircular emargination in the middle and fringed 

 with pale yellow hairs; outer appendages lanceolate, claw- like, the apices black- 

 ish, attenuated; inner appendages large and conspicuous, twisted, curved down, 

 out, upward and somewhat outward, ending in a blackish spine. 



Holotype: cf; Black Mountains, North Carolina. June 21, 

 1912. (Wm. Beutenmueller.) 



Paratype: cf; topotypic. 



Closely resembles P. tenuis Loew and P. brevicornis Doane, 

 from both of which it differs in the large, conspicuous, inner 



TRANS. AM. ENT. SOC, XLIV. 



