168 
Body black or brownish. 
Without lines. 7 
With 8 lines (dorsal and suh-dorsal) .. 8 
With 4 lines, suh-dorsal or stigmatal. 
Head black, the top and sides reddish. 9 
Head reddish.10 
Head black. 
Hair on back black, on sides reddish.11 
Hair whitish, reddish or black.10 
Hair mouse colored.11 
With only 1 line (dorsal).12 
Body striped with about 7 lines; head black.18 
Body striped with about 11 lines; head yellowish.14 
1— Halesidota tessellaris. —Body black or dark gray, with the 
sutures of the segments yellowish; hairs from warts pale yellowish; 
that on the back forming a crest, that on the sides in spreading- 
clusters ; on each side of segments 2 and 8 is a black and a white 
pencil of long hairs, the white pencils the lowest; there is some¬ 
times an additional pencil of white hairs on each side of segment 
2; on each side of segment 11 is a pencil of long black hairs; head 
shining black or reddish brown; length, If inches. Feeds on Oak, 
Hazel and Buttonwood. July to October. Spins a cocoon. (D. W. 
Coquillett.) 
2— Halesidota caryce. —Body yellowish-white ; a low white stigmatal 
ridge; hairs bright yellow; on top of each segment, from 4 to 11, 
inclusive, and on each side of segments 4 and 10, is a cluster of 
black hairs; on each side of segments 1, 2 and 12 are two pencils 
of long whitish hairs; on each side of segments 4 and 11 is a 
single cluster of long whitish hairs; head shining black; length, If 
inches. Feeds on Willow, Hickory, Elm and Ash. August to 
October. Spins a cocoon. (D. W. Coquillett.) 
3— Platy centra fur cilia. —Body mottled dull red, marked on each 
side with a transverse irregular bright red band; a whitish dorsal 
line edged with gray; a gray line above the spiracles, on which, on 
each segment from 3 to 8, are four depressed black spots; a stig¬ 
matal red and white line; on each segment is a transverse row of 
tubercles, from each of which issues a cluster of red hair, which, 
on the anterior segments, inclines to yellow; on the segments 1, 2, 
4 and 11 are two pencils of red hairs about f inch long, darker at 
their tips and slightly feathered; spiracles encircled with brown; 
legs red; head red, marked with lighter red; length, If inches. 
Feeds on Pine ( Pintis strobus). -July to September. Spins a cocoon. 
(J. A. Lintner.) 
