ai ; DIPTERA 
Characters. — Slender brownish black pollinose species with long yellow legs. Head i d 
elongate, the cheeks rostriform, two-thirds the eye-height, not sutured from the face but with a small 
impression just beneath the eye, truncate at the oral margin, narrowly notched at the epistome, face - Le 
bare; proboscis nearly as long as the height of the head, rather slender and tapering, inflexed, chitinized, a ; 
filling the oral cavity, opaque black except at the apex, without trace of the labella; palpi small, pro- ES 5 
jecting downward, incumbent; antennz touching, the third joint compressed ovate, but nearly straight 2 ; 
above, pointed apically, bearing a moderately thick, two-jointed, downward-directed arista whose length — 
is slightly more than the third joint; one pair of projecting ocellar bristles, one pair of verticals, setula 
of occiput sparse. Thorax not elongate, the prosternum half as long as the mesosternumi; five dorso- - 
centrals, no acrostichals, one humeral, one posthumeral, one small notopleural, one small supraalar, one 
postalar, four scutellar and also discal and marginal setulz on the scutellum; metapleurze with hairs. - 
Abdomen comprising eight segments (Q), two small terminal styles; epipygium of the form of Climocera, — 
middle and upper valves hemispherical, nearly equal in size, keel not compressed, penis recurved at the —e 
tip. Legs slender, without setulz or long hairs, tarsi peculiar, the first joint long, equalling the - 
remainder, the second, third and fourth joints very short and similar, of the anterior pairs not longer 
than thick, fifth joint of all the tarsi continued dorsally at the apex as a conical procéss, so that the claws 
do not arise at the end of the tarsi, empodium fleshy and larger than the pulvilli, tactile hairs much 
reduced, claws long and curved. Costa encompassing the entire wing, a basal costal bristle present, 
no costal setulze, no stigma, third vein forked, discal cell complete, pointed, second posterior cell acute 
and with a short petiole, no fold under the humeral crossvein, second basal cell short, as in Clinocera,. 
anal cell almost rounded at the apex, coextensive with the second basal, no anal vein, cilia of the hind - 
margin longer than the anterior crossvein. 
Tyne species : R. juucla, Coquillett (manuscript name Needhami Coquillett)is theonly repres- 
entative, The species measures two and a half millimeters and was found in the mountainous woods 
of North-eastern New York. Mr. C. W. Johnson has taken the species on Mt. Nep. New | 
Hampshire. 
W- 
Geographical distribution. 
1. R. juncta, Coquillett, New York State Mus. Bull. Vol. 47, p. 585 (1901); E. United. fate. 
Needham, ibidem, p. 581, pl. 15, f. 5-8 (1901); Melander, Trans. 
Amer. Ent. Soc. Vol. 28, p. 239 (1902); Engel, Deutsche Eht. 
Zeitschr. 1918, p. 264 (1918). — PI. 2, Fig. 19. 
12. GENUS CLINOCERA, MEIGEN 
Ciinocera, Meigen, Illiger Mag. Ins. Vol. 2, p. 271 (1803); Rondani, Dipt. Ital. Vol. 1, p. 149 (1856); 
Loew, Wien. Ent. Monatsschr. Vol. 2, p. 238-253, 257-262 (1858); Schiner, Fauna Dipt. Aust. 
Vol. 1, p. 84 (1862); Mik, Verh. Zool.-bot. Ges. Wien, Vol. 31, p. 320 (1881); Bigot, Bull. Soc. 
Ent. France, Vol. 12, p. 102, 103, 118 (1887); Mik, Ent. Nachr. Berlin, Vol. 14, p. 42 (1888); 
Bigot, Ann. Soc. Ent. France (6), Vol. 9, p. 120 (1889); Coquillett, Proc. U. S. Nat. Mus. 
Vol. 18, p. 389 (1895); Williston, Man. N. Amer. Dipt. p. 75 (1896); Melander, Trans. Amer. 
Ent. Soc. Vol. 28, p. 240 (1902); Williston, Man. N. Amer. Dipt. p. 224 (1908); Bezzi, Nova 
Acta Akad, Naturf. Halle, Vol. 9t, p. 3oo (1909); Lundbeck, Dipt. Dan. Vol. 3, p. 213 (1919); 
Wahlgren, Ent. Tidsk. Vol. 31, p. 45, 81 (1910); Kertész, Rovert. Lapok, Budapest, Vol. 18, 
p. 65, 68 (1911); Brunetti, Fauna Brit. India Dipt. Vol. 1, p. 364 (1920). 
