1915.] NATURAL SCIENCES OF PHILADELPHIA. 467 
curved suture obtaining in many species (eucera Loew, ferruginea 
Fabricius, pedunculata Loew, et al.). The ninth tergite is usually 
small and rather inconspicuous, not tumid. The outer pleural 
appendage is fleshy, in the shape of a more or less flattened lobe, 
which is sometimes attenuated or arcuated. 
In general, the species of Nephrototna are shiny with well-marked 
stripes and bright colors. In some, however (as macrocera Say), 
the colors are dull, quite as in some species of Tipula. The six 
species listed before, as well as the new species described below as 
Tipula pachyrhinoides, which have hitherto been taken to be species 
of Nephrotoma, agree with the species of this latter genus only in 
the bright, shiny coloration, all of the other characters pointing 
strongly to the fact that they are really species of Tipida. The 
second Tipula calif ornica described by Doane^ thus requires renaming. 
In the work by Czizek cited before,^ the author of this excellent 
paper has given a critical comparison of Nephrotoma and Pachyrrhina , 
pointing out the fact that there is no basis at all for retaining the 
latter name; but in spite of this clear comparison, the two names 
are still kept separate. The ^'discoidal cross-vein" spoken of by the 
author is that portion of the vein M between the cross-vein m-cu 
and the fork of M. 
Nephrotoma penumbra sp. n. 
Frontal prolongation of the head with three stripes; antennae 
dark brownish black, excepting the basal segment; head dull brownish; 
thoracic dorsum obscure dull yellow with three broad black stripes; 
pleura j^ellow spotted with brown; wings dusky; abdomen dull 
yellow with three stripes. 
MaZe.— Length, 12.2-13.4 mm.; wing, 11.8-13.6 mm. 
Frontal prolongation of the head moderate in length, yellow, with. 
three broad brownish stripes, the lateral pair being more distinct 
than the median one. Palpi with the basal segment black, the 
second and third dark brown, the terminal segment light brown. 
Antennse with the basal segment dull yellow, darkened toward the 
apex, the remaining segments dark brownish black; the flagellar 
segments deeply incised beneath. Front light yellow; vertex 
reddish brown with a linear black median vitta. 
Thoracic priBscutum dull obscure yellow with three broad black 
stripes, the median one longest and broadest; the lateral stripes not 
■* Annals of the Entomological Society of America, vol. 5, p. 49, 1912. 
^ Tipulidse Moravicse; Zeitschrift des Mahrischen Landesmusexims, vol. 11, pp. 
49, 61, 1911. 
