44 Psyche [February 
fork of Re+3; Sc2 much shorter than Sc: but strong, in a line with the cord of the 
wing; R2+; long, as long as R: alone; cross-vein r about as long as that portion of 
R: between it and the fork of R:+3; basal deflection of Cu: as near to the fork of M 
as to the middle of cell 1st Ms. 
Penthoptera Schiner. 
1863. Penthoptera Schiner; Wiener Entomol. Monatsschr.; vol. 7, p. 220. 
1869. Penthoptera Osten Sacken; Monographs Dipt. N. Am.; vol. 4, p. 256. 
A Key to the American Species of Penthoptera. 
1. Small (wing less than 8 mm.); mesothoracic preescutum with the ground color 
obscured by a greyish or bluish pruinosity, dorsal stripes not distinct; 
metatarsi of the legs white; cell J/: of the wings present, i. e., M: and M;: 
separate at the wing-margin. (Eastern U.S.) ............ albitarsis O. S.1 
Large (wing more than 9 mm.); mesothoracic preescutum yellowish with four 
shining blackish marks; metatarsi of fore and middle legs more or less brown; 
cell Mi of the wings lacking, i. e., 1/1 and M2 fused to the wing-margin. 
(Guatemalagyys sc: «52 5 cee ee Oe eee conjuncta, sp. 0. 
The new species described below is a typical member of the 
genus Penthoptera as defined by Osten Sacken (Monographs, 
l.c., p. 256, 257). It agrees with albitarsis O. 5. of Eastern North 
America, and chirothecata Scop. of Central and Southern Europe, 
in its snowy-white tarsi, a character not yet found in Friocera, 
so far as I can discover. It differs from these two species, and 
comes closest to cimicoides Scop. of Central and Southern Europe 
in the lack of cell M, of the wings; from the last-mentioned species, 
it differs in tarsal and body-coloration, ete. 
Mr. F. W. Edwards’, in his recent comprehensive paper on the 
Seychelles Tipulidee, 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 the typical group of species. Penthoptera 
fuliginosa Schiner, 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, Schiners fuli- 
ginosa will require renaming. 
Penthoptera conjuncta sp. nov. 
Thoracic dorsum yellowish with four dark marks; tarsi white; cell M1 absent. 
o, Length, 9.5 mm.; wing, 9.8 mm. 
2, Length, 10.6 mm.; wing, 10 mm. 
1Qsten Sacken, Monographs, vol. 4, p. 257, 258. See Needham, 23rd Rept, N. Y. State 
Entomologist for 1907, plate 12, figure I, for photo of wing. 
2 Edwards, Trans. Linn. Soc. Lond.; 2nd series, Zodlogy; vol. 15, pt. 2; Sept. 1912. The 
Percy Sladen Trust Expedition to the Indian Ocean in 1905—No. 14—Diptera, Tipulide; p. 
195-214; pl. 10-11. 
