1917] Parshley—Notes on North American Tingide (Hemiptera) ifs 
late process. Paranota! linear, cariniform, exterior margin straight, 
somewhat broader anteriorly. Hemielytra at middle distinctly 
broader than pronotum, extending a little beyond apex of abdomen; 
costal area narrow, distinctly uniseriate, biseriate anteriorly; 
subcostal area with 5 or 6 rows of areoles at most, obtusely angulate 
at apex of discoidal, which extends beyond middle of hemielytra; 
sutural with slightly larger areoles apically. Legs rather robust. 
Rostrum scarcely reaching middle coxee. Orifices but slightly ele- 
vated, narrow, transverse. Pleure largely reticulate. Abdomen 
shining, the segments roughened posteriorly. Hind wings almost 
as long as hemielytra. Form obovate, broadest behind middle, 
costal margin nearly straight in apical half. Length 9, 2.8 mm.; 
width 1.3 mm. 
Holotype and paratype, two 2 2, Marshall Hall, Md., 1 August, 
1891 (N. Banks), in M. C. Z. Collection. 
This species is easily distinguished from mutica by its shorter 
and broader form, slightly shorter antenne with more slender 
third segment and distinctly shorter fourth, somewhat more promi- 
nent paranota, and especially by its distinct and completely reticu- 
lated costal area which in Say’s species is cariniform and percepti- 
bly reticulate only toward apex. The lateral pronotal carinz are 
very inconspicuous in costata and obsolete or nearly so in mutica. 
Physatocheila Fieb. 
In connection with my treatment of the North American species 
in a recent paper,” it should be made clear that the arrangement 
of areoles in the costal area is somewhat variable and not always 
symmetrical, although a majority of specimens exhibit the condi- 
tions described. In cases of doubt the other characters mentioned 
are amply sufficient to insure recognition of the forms. 
Melanorhopala Stal. 
Our conception of this genus must be slightly modified to accom- 
modate M. duryi O. & D. and the new form described below, which, 
though in my opinion congeneric with clavata, exhibits certain 
marked differences. According to this view the chief characters 
1See Jour. New York Ent. Soc., Vol. 24, 1916, p.8. Crampton in a morphological paper has 
proposed this convenient name for the lateral expansions of the pronotum. 
2 Psyche, Vol. 23, 1916, pp. 163-168. The holotype of D. tricornis americana is in the col- 
lection of the Boston Society National History, notin mine, as erroneously stated on p. 164, 
