176 
[October 
the shorter setae and the considerably longer abdomen, are remarkable 
characters. It is true that we sometimes find Ephenierinous images 
with the legs shorter than common, and that they are animals which 
sometimes have their legs damaged in the larval state and replaced by 
shorter ones; but then the two anterior legs are not ordinarily of ex¬ 
actly equal length as they are here. 
3. P. LIMBATA Pictet, Walsh. {P. hilineata Hagen.) The identity 
with Pictet’s species remains to be proved; it may be altogether new.— 
S S 9 9 images, 9 subimago Rock Island, 1860.— % % images Wash¬ 
ington,— 9 imago St. Louis.—Length % % images from Rock Island. 
16 mill. Kxp. 29—32 mill. Seta 39 mill. Ant. leg 12 mill. They 
agree with the % % from Washington (cited p. 41 of Synopsis), but 
they are a little smaller. The description of these S S must be cor¬ 
rected, because the abdomen shows on the dorsum of each segment a 
median black band which does not attain the base except in the three 
penultimate segments, and may even be altogether absent in the ante¬ 
rior segments ( S from Washington.) Finally, in place of “ anterior 
feet fuscous, basal articles of the tarsi yellow,” read “ articles of the 
tarsi yellow at the base.” The words “ penis apex incurved, oval,” 
must be erased, for I do not find that it differs from that of the other 
species. The brown margin of the hind wings is very narrow and may 
even be altogether absent. 
4. P. SPEC. NOV. An P. vittigera Walsh 9 ?— 9 imago Rock Island; 
9 subimago Philadelphia.— % imago [P. vittigera Walsh? B. D. W.]— 
The 9 imago from Rock Island differs from the two described 9 images 
of P. limhata as follows :—Is^. The size is larger; length 25 mill. Exp. 
52 mill. Setae broken. 2>nd. The prothorax is visibly longer, less 
wide near the thorax. 3rr/. Segments 3—6 of the abdomen have more 
brown, the [brown] bands joined at the tip, so as to form only two 
basal oval [fulvous] spots. \t]i. The 4 hind legs have only the last 
joint of the tarsi as well as the claws brown, bth. The wings are hya¬ 
line. Qth. The intermediate seta is a little longer (2 mill.)—Is it P. 
limhata Pictet, Walsh? or the 9 of P- vittigera Walsh? The 9 subi¬ 
mago from Philadelphia (Coll. Winthem, mentioned Synopsis p. 41,) 
has the same dimensions and apparently belongs here. The colors are 
more obscure; on the abdomen there is only a wide brown dorsal band; 
the wings are yellowish gray, and the legs are as in the imago. 
