BY FREDERICK A. A. SKUSE, 83 



392, 1851 ; Osten-Sacken, Cat. N. Amer. Dipt. p. 222, Note 45, 

 1878 ; P. jncta, Schiner, Dipt. Novara Exp. Zool. Theil, Bel. 11. 

 p. 38, 1868 ; P. ramicornis, Westw,, Trans. Ent. Soc. Lond. 1881, 

 p. 382, pi. 19, f. 14 ; O.-Sacken, Studies on Tipulid^e, I. 1886, p. 

 176. 



(J. — Length of antennae 0-280 inch ... 7*10 millimetres. 



Expanse of wings 0'680xO-160 ... 17-26 x 4-06 



Size of body 0-720x0-090... 18-28x2-27 



9. — Length of antennae 0-180 inch ... 4-56 millimetres. 



Expanse of wings 0-760x0180 ... 19-32x4-56 



Size of body 1-000x0-115 ... 25-40x2-92 



Brownish-ochreous. Front, basal joints of antennse, rostrum 

 (above j, and collai-e, ochreous ; last four joints in ^ antennae, all 

 the branches in both sexes, the palpi and suctorial labella, fuscous- 

 brown or black ; rostrum usually brownish at the sides and beneath. 

 Thorax sub-nitidous, moi^e or less deeply tinged with brown on the 

 pronotum, from which three brownish lines often proceed to the 

 suture ; pleurae with a brownish oblique stripe or often merely a 

 spot between humeri and origin of wings. Halteres with slightly 

 infuscated club. Abdomen with a longitudinal black (often broad) 

 stripe above and beneath from the anterior margin of second 

 segment ; the segments (except the first) very narrowly bordered 

 with black laterally and posteriorly ; genitalia brownish-ochreous 

 in both sexes. Femora broadly ringed with black at the apex ; 

 tibiae slightly black or fuscous at the apex ; tarsi obscure. "Wings 

 hyaline, bordered with pale brown anteriorly, the veins (except 

 sixth and seventh longitudinal) clouded with darker brown ; four 

 small, roundish, hyaline spots in the brown border ; first midway 

 between humeral cross-vein and origin of praefurca ; second imme- 

 diately before origin of praefurca ; third beneath anterior branch 

 of second longitudinal, and fourth (sometimes very indistinct) at 

 the tip of tlie last named ■ vein ; posterior half of wings lightly 

 infuscated with greyish. First longitudinal vein joining before, at 

 or a little beyond the base of anterior branch of second longitudinal 



