128 NORTH AMERICAN TIPULIDAE 



Pachyrhina temeraria spec. n. 



Yellow. Sides of proboscis brown. Antennae entirely yellowish; occiput 

 opaque with shining brown line. Wings with yellowish tint, costal cells yel- 

 lowish, stigma brown. Abdomen with broad, dorsal stripe and lateral and 

 ventral rows of black strigae. 



Female. Length, 17.5 mm.; wing, 13 mm. 



Head. Frontal prolongation shining, nasus beset with blackish hairs. 

 Mouthparts and palpi brownish-yellow, basal joint of latter dark brown. Sides 

 of proboscis brown. Face light yellow. Antennae yellowish, scapal joints 

 shining and a shade paler, slender, pubescence fine, whitish, segments with basal 

 verticels of dark setae. Vertex and occiput dark yellow, the latter with a 

 narrow, brown, shining line. 



Thorax ivory-yellow, shining; pronotal scutum ferruginous in middle. Prae- 

 scutal stripes ferruginous, the middle stripe narrowed posteriorly, the lateral 

 stripes not curved outwardly; scutum with curved ferruginous stripe each 

 side. Scutellum and postnotum ferruginous, shining, the latter with large, 

 ivory-yellow patch each side. Transverse suture externally and its continu- 

 ation in the pleura-dorsal suture to and above the alar insertion, black. Pleura 

 concolorous, shining. Halteres sordid yellow, club fuscous. 



Legs yellowish, slender, pubescence coarse, black, femora slightly, tibiae mark- 

 edly, infuscate at the apex, outer tarsal joints infuscate, metatarsi longer than 

 the tibiae. Wings faintly grayish, with yellowish tint, especially marked 

 along the veins, costal cells markedly tinted yellow; stigma brown; costo- 

 apical portion somewhat infuscate, a spot before and behind the stigma and 

 fork of vein M whitish-hyaline. Rs oblique, short, curved near its base; 

 cell M 1 sessile. 



Abdomen yellow, base above, paler; a broad, pale brown, dorsal stripe 

 extends from the posterior half of first tergite to end of the seventh; eighth 

 segment entirely blackish, lateral margins of tergum and venter, with a row of 

 black strigae. Ovipositor blackish at base, dorsal valves long and slender, 

 obtusely pointed at the apex, ventral valves a little wider and scarcely more 

 than one-half as long as the former. 



Holotype: 9 ; Floodwood, Schoolcraft County, Michigan. 

 July 1915. (J. S. Rodgers.) 



In its entirely pale yellowish antennae, this species is differen- 

 tiated from all others. Its nearest ally is P. perfida, but the an- 

 tennal flagellum of the latter is more yellowish-fuscous and lacks 

 the occipital line; in coloration of wing, they resemble each 

 other, but cell M 1 in P. perfida is long petioled. Aside from an- 

 tennal characters, P. temeraria is distinguished from P.ferruginea, 

 interpunctata and occidentalis, by the narrow, occipital line. 



