440 



TIPULID.i:. 



17. The 1st longitudinal vein ending near 

 tip of wing ; discal cell present, its 

 proximal end rectangular; antennal 

 scape very short; flagellum of lo 



very elongate joints Paracladltra, Brim., 



The 1st longitudinal vein ending at a [p. •">02. 



considerable distance from tip of 

 wing ; discal cell absent, its proximal 



end pointed ; antennal scape normal ; [p. oOS. 



flagellum of 13 oval joints Claduroides, Bruu., 



Genus EHYPHOLOPHUS, Kol. (PI. XI, %. 20.) 



Iihyi)holuphu:<, K(jlenati, Wien. Ent. Monats. iv, p. 393 (1860). 

 Ilisoiiii/a, Rondaui, Dipt. Ital. Prod, i, p. 180 (1856). 

 Ormosid, Itoudani, I. c. 

 Dasyiiteru, Schiner, Wien. Ent. Monats. vii, p. I'll (1863). 



<tEXOTYPE, RhyplioJoplms jjhr >/(jano2)tcnis, Kol. 



This genus is closely allied to Erioptera, the principal differential 

 chai'acter being that the wings are pubescent over the whole 

 surface, instead of only along the veins, as is the case in all the 

 other genera of the Er'ioptem group found in the East. There 

 ai'e two submarginal cells, fdur posterior cells, and a discal cell, 

 which is open or closed. The antenna? are of sixteen joints, and 

 are of considerable length in the males of some species,* the joints 

 being much elongated, strongly pedicelled and pubescent. A 

 discal cell is present or absent ; when the cell is absent it is 

 generally the anterior branch of the 4th longitndinal vein that is 

 forked, the cell being then coalescent with the 3rd posterior cell.f 

 The wing is, generally speaking, slightly broader than in Enoptera, 

 and the veins diverge from each other rather more distinctly, so 

 that they do not present the peculiar effect of i)arallelism so 

 conspicuous in Erioptera. Tlie 7th longitudinal vein is normally 

 straight, or slightly arcuate, bending downwards or more or less 

 abruptly curved downwards in its middle, presenting its concavity 

 towards the 6th A'ein, Occasionally t it runs comparatively near 

 +o the 0th vein in its basal part, but never so pronouncedly so as 

 m the typical Eriopterce. 



liange. The previously recorded species occur in Europe and 

 North Amei'ica, extending into the Arctic Regions, several species 

 coming from Greenland and Alaska. 



* This does not occur in the Oriental species. 



t These species were placed in the genus. Dnsyptera, f ornu'd for their reception 

 by Schiner, but our more extended acquaintance with the Diptera has proved 

 that the presence or absence of a discal cell is seldom of generic value unless 

 accompanied by other constant characters. It is not always the anterior 

 branch of the 4th vein which is forked, when the discal cell is absent, as in 

 at least one Nortli American species (B. holotrichus, Os. Sac.) the posterior 

 branch bears the fork. 



X R. nigripiliii<, Os. Sac, from North America. 



