156 Psyche [October 
Rostrum reaching more or less beyond the rostral sulcus; outer 
costate nervure that bounds discoidal area sinuate; color — 
either brownish, or brownish more or less tinged with yellow, 
or brown or grayish-brown variegated with pale cinereous 
and black, or cinereous. 
P. plexa Say (= P. variegata Parsh.) 
Physatocheila parshleyi nom. nov. (= P. plexa Parsh.). 
This species was described by Parshley in his first paper as the 
true form of P. plexa Say. Although the species meets the 
requirement of the writer’s contracted form of Say’s description 
and his assumed characters of a true plexa it is distinctly at vari- 
ance with the original description if taken in its entirety. Com- 
pare as follows: (Say) “Body brownish, more or less tinged with 
yellow” surely cannot be the same as (Parshley) “Uniform dull 
yellowish brown”’; (Say) “two series of which on the lateral margins 
are a little larger,” in reference to the reticulations of the elytra 
is hardly identical with (Parshley) “‘Costal area of the hemielytra 
with two almost regular series of areoles’’; the rostrum is not 
mentioned in the original description of plexa and the length of 
the rostrum is entirely an assumed character by Parshley. It 
might be well to note that the length of the rostrum is not given 
by Say in any Tingid description, also that this species has never 
been taken in the regions where Say did his entomological work. 
In as far as we know this species has only been taken in the New 
England States and eastern Canada; plexa is a common species in 
the states where Say worked and our collections include numer- 
ous specimens of this species from Portland, Oregon, to the Atlan- 
tic Ocean. The structures mentioned in the key will readily sep- 
arate this species from allied forms and the other characters can be — 
noted in Parshley’s first paper under plexa Say. 
Physatocheila plexa Say, Uhler, Heidemann, Osborn & Drake 
(=variegata Parshley, but not plexa). 
The conclusions drawn by Parshley in his first paper are based 
on a special interpretation of Say’s description and a few assumed 
characters as indicated below. 
