168 
MEMOIES OF THE NATIONAL ACADEMY OF SCIENCES. 
LAUVA OF PSEUDOTnYATlBA CYMATOPIIOROIDES GEOTE. 
(PI. XIX, fig. 5, 5rt, 5&.) 
I 
This beautiful uthI interesting larva was detected on the yellow birch at Brnuswick, Me.j. 
August 14. It was dark horn-brown, the tail ut>turned, and tlie body when disturbed twisted into 
a partial spiral. The next day it molted. I had supposed it might be a ]:^otodontian, but Dr. Dyar 
on reading my description thinks it is almost surely a ISToctuid, and that it has been described by 
K. Thaxter. The fallowing description was made two days after it had molted and before the body 
had filled out, as it tapered slightly to the end: 
Staffe ITIf. — Length, 8-9 mm. Tlie head is large and broad, somewhat rounded, but seen 
from in front somewhat square, being about as broad as long; it is much wider than the body, the 
latter not yet being tilled out; it is jiale, raw sienna brown, with dense reddish brown spots 
arranged in two broad diffuse median and two broad diifuse longitudinal bands; it is slightly 
bilobed and much rounded on the vertex, not angular, and with no tubercles. The segments of 
the body are transversely wrinkled. The body above is of a peculiar dark sea-green hue, and 
below this runs into a dark umber brown. The first thoracic segment has no tubercles or marks, 
but is dark brown on the sides and on the back, with irregular scattered pale spots. On the 
second thoracic segment is a prominent transverse ridge, with a small tubercle at each end; it is 
dark on the anterior slope, but on the summit and on the posterior slope whitish ash. This pale 
area extends back to the first abdominal segment, but does not include it, though it passes down 
to the side of that segment and extends backward, forming a lateral diffuse, rather iiTeguIar 
spiracular baud, from which a pair of obliciiie pale stripes extend upward upon the back, not quite 
reacliiug the tine uiediau bhutkish line; posteriorly it forms the pale edge of the suranal plate. 
A decided dorsal hump on the eighth abdominal segment, v'hicb is dark velvety umber-brown 
with the hinder edge below whitish. The end of the body is decidedly elevated, and the dark 
anal legs are as large as the middle set of abdominal legs, which are flesh colored. The thoracic 
legs are dark green, concolorous with the thoracic segment, 
Ellida Grote. 
(PI. XLII, fig- I, venation.) 
EUida Grote, Can. Eiit., viii, ji. 125, July, 1870. 
Cijmaioi)hora Walk., Cat. Lep. Het. Br. Miis., ix, j). 18, 1856. 
EUida Kirby, Syn. Cat. Lep. Het., i, p. 597, 1892. 
Xeuiu. and Dyar, Trans. Amer. Eut. Soc., xxi, j). 187, June, 1894; Journ. N. Y. Eut. Soc., ii, p. 208,. 
Sept., 1894. 
]\Ioth, — Head much as in !N‘otodonta; the front shaggy, moderately wide; the hairs abundant; 
eyes naked. The male antenum broadly pectinated; “ female anteunm more shortly and flnely 
bipectiuate'’ (Grote). The palpi much as in Kotodonta, being short and broad, the third joint 
short and conical, but distinct, and reaching slightly beyond the front. The thorax is smooth, 
not tufted. 
Fore wings not broad, the costa regularly convex; the apex not produced and rounded as in 
INotodouta, but moderately acute; outer edge short; inner edge simple, not tufted. Venation 
much as in L. hasitriem^ there being no subcostal cell. Tlie costal region is rather wide; 
six subcostal branches, the second very short; the sixth arises nearer the discal veiu than in 
L, hasitriens. The arrangement of the discal veins is much as in L. basitriens, their course being 
uearl}^ straight. Hind wings somewhat pointed toward the apex. The subcostal does not fork so 
far out near the outer edge of the wing as in Xotodonta, while the two discal veins taken together 
make a regular curved line. 
Tlie abdomen is smooth, not tufted at the end, but conical. Legs moderately stout, pilose; 
a iiair of discal spurs on tbe bind tibim not projecting far beyond the hairs. 
Coloration somewhat as in Schizxira leptimides, vennmling one at liixst of that species; fore 
wings ash-gray, with transverse lines, but the venules ouly slightly marked with dark spots and 
streaks. A distinct curvilinear discal spot and just within it three short parallel distinct brown 
lines, which are most distinct in the median space. Hind wings ash-brown. Collar dark. 
