44 Psyche [February 



fork of R^.J•, Sf-. much shorter tlian Sci but strong, in a line with the cord of the 

 wing; U:-i long, as long as R: alone; cross-vein r about as long as that portion of 

 Rj between it and the fork of R-.,; basal deflection of Cui as near to the fork of 3/ 

 as to the middle of cell 1st Mi. • 



Penthoptera Schiner. 

 1863. Penthoptera Schiner: Wionor Entomol. Monatssclir.; vol. 7, p. iiO. 

 1869. Penthoptera Osten Sacien; Monographs Dipt. N. Am.; vol. 4, p. 456. 

 .•1 Key to the American Species of Penthoptera. 

 1. Small (wing less than S mm.); mesothoracic prascutum with the ground color 

 obscured by a greyish or bluish pruinosity, dorsal stripes not distinct; 

 metatarsi of the legs white; cell J/i of the wings present, i. e., J/i and J/t 



separate at the wing-margin. (Eastern U. S.) albitarsis O. S.> 



Large (wing more than 9 mm.); mesothoracic pncscutum yellowish with four 

 shining blackish marks; metatarsi of fore and middle legs more or less brown; 

 cell -V. of the wings lacking, i. e., J/i and Ms fused to the wing-margin. 

 (Guatemala.) conjuncta, sp. n. 



The new- species described below is a tj-pical member of the 

 genus Penthoptera as defined by Osten Sacken (Monographs, 

 1. c, p. 256, 257). It agrees with albitarsis 0. S. of Eastern North 

 America, and chirothecata Scop, of Central and Soutliern Europe, 

 in its snowy-white tarsi, a character not yet foimd in Eriocera, 

 so far as I can discover. It differs from these two species, and 

 comes closest to cimicoides Scop, of Central and Southern Europe 

 in tlie lack of cell J/i of the wrings; from tlie last-mentioned species, 

 it differs in tarsal and body -coloration, etc. 



Mr. F. W. Edwards-, in his recent comprehensive paper on tlie 

 Seychelles Tipulidfe, has questioned the generic validity of 

 Penthoptera. The group is, indeed, founded on rather trivial 

 characters, but these, as defined by Osten Sacken, are numerous 

 and apply very well to tlic t\-pical group of species. Penthoptera 

 fuliginosa Sc-hiner, the only form ever described by the founder of 

 the genus was considered by Osten Sacken to be a species of 

 Eriocera. In case Penthoptera is reduced in rank, Sciiiners fuli- 

 ginosa will require renaming. 



Penthoptera conjuncta sp. nov. 



Thoracic dorsum yellowish with four dark marks; tarsi white; cell J/i absent. 

 c'. Length, 9.5 mm.; wing. 9.8 mm. 

 9, Length, 10.6 mm.; wing, 10 mm. 



'Osten Sacken. Monographs, vol. 4. p. 257. 258. See Needham. 23rd Kept, N. Y. State 

 Entomologist for 1907. plate 12. figxire 1. for photo of wing. 



'BMwards. Trans. Linn. Soc. Lond ; 2nd serieg. Zoology: vol. 15. pt. 2; Sept. 1912. The 

 Percy Sladen Trust Expedition to the Indian Ocean in 1905— No. 14— Diptera, Tipulidx: p. 

 195-214; pi. 10-11. 



