1909] FROST — ENARMONIA TRISTRIGANA 15 
last few segments, so that some larvae have no trace of this color, and others are 
decidedly red. From specimens examined it appears that young larvae have this 
color more marked than even the reddest full grown ones. Entire body, with excep- 
tion of head, second segment on dorsum, anal shield and numerous prominences 
scattered over the body, has a peculiar rough appearance due to minute spine-bearing 
elevations distinguishable only under the microscope, and it is also faintly shining. 
These elevations, minus the spines and less prominent, may be found on all the 
smooth portions by careful microscopic examination. 
Head strongly bilobed, light castaneous, smooth, shining, with a few scattered 
light brown hairs; bordered posteriorly by narrow dark brown band, which ends 
just back of ocelli in an irregular brown spot. Lateral edges of clypeus and two 
longitudinal sutures on under side of head very dark brown. Vase shaped light 
central area on ventral side of head, with the base posterior, space between this 
and the two above mentioned sutures dark brown. First segment of antennae pale, 
rest same color as head with segments beyond second bearing several light brown 
hairs. Ocelli six in number, pale, placed on a dark brown spot. Labrum with 
central lighter band which varies from pale at upper end to light brown at lower, 
and with all outside this band dark brown. Mandibles dark brown, with almost 
black tips. Other mouth parts pale with their tips and lateral edges of labium darker. 
Body strongly segmented, second segment anterior three-fourths light brown with 
numerous small darker areas, wrinkled, shiny; third wider, fourth and fifth nar- 
rower than third, sixth wider again and remainder slightly decreasing in diameter to 
posterior end of body. Third and fourth segments each with two transverse sinuate 
wrinkles over whole of dorsum, and one small one each side of median line in front. 
Fifth to twelfth segments with one wrinkle like large ones in other segments. Anal 
shield smooth, shining, tinged with yellowish brown and possessing a slight central 
depression. Numerous small, smooth, shining prominences are present on body 
located as follows: on dorsum there are two parallel rows each side of median line 
on fifth to twelfth segments inclusive, the four on each segment being placed so as 
to form a trapezoid on segments five to eight, and a square on nine to twelve. ‘These 
two rows are replaced by double prominences on segments three, four and thirteen. 
Just below these rows there is a partial row with prominences placed on segments 
two, three, four and thirteen. 
Below this and close to stigmata there is another row on segments three to eleven 
inclusive and two more, evidently belonging to this row, on twelfth and thirteenth 
segments on a level with stigmata, that on the twelfth being placed just in front of 
the stigma. Another row set close to the stigmata below on segments two to thirteen 
