October, 1902] 



PSYCHE. 



407 



of ranged appendages on each side, the 

 uppermost laterodorsal, the lowermost 

 with two appendages to a segment, all 

 springing from flattened tubercles. Ma- 

 ture caterpillar : Spines of head slender, 

 tapering throughout ; uppermost spines 

 of body much longer than the segments. 

 Chrysalis : Frontal tubercles excessively 

 long, ribbon-like, serrate above ; antennal 

 joints spined ; abdominal prominences 

 terminating in spines. 



2. CoLAENis. Butterfly : Fore wing 

 distinctly more than twice as long as 

 broad, its cell fully half as long as wing ; 

 cell of hind wing open. Egg- Unknown. 

 Caterpillar at birth : Ranged appendages 

 springing from elevated tubercles. Ma- 

 ture caterpillar : Uppermost spines of 

 body scarcely longer than the segments. 

 Chrysalis : Frontal tubercles large but 

 not elongate ; antennal joints not spined ; 

 laterodorsal prominences of abdomen be- 

 yond third joint large, compressed, sub- 

 quadrate. 



3. Agraui.is. Butterfly. Fore wing 

 not more than twice as long as broad, 

 its cell much less than half as long as 

 wing; cell of hind wing open. Egg: 



Tapering from the middle upward. Cat- 

 erpillar at birth : Three principal rows 

 of ranged appendages on each side, all 

 with one appendage to a segment and all 

 springing from elevated tubercles. Ma- 

 ture caterpillar: Spines of head stout, 

 scarcely tapering; uppermost spines of 

 body longer than the segments. Chrys- 

 alis: Frontal tubercles large but not 

 elongate; antennal joints tuberculate but 

 not spined ; laterodorsal prominences of 

 abdomen beyond third joint small, con- 

 ical. 



Apostraphia Hiibner. 



Butterfly : Palpi very slender, very 

 thinly haired; antennae as long as the 

 body, gradually clavate. Fore wings 

 more than twice as long as broad with 

 well-rounded tip, the cell more than half 

 as long as the wing ; cell of hind wings 

 closed, the anal angle rounded. Fore 

 tarsus of $ very short; pulvilli and 

 paronychia present. Egg: Subcylindri- 

 cal, tapering considerably only on the 

 upper third, the lateral cells less than 

 twice as broad as high. Laid singly. 



LIFE HISTORIES OF NORTH AMERICAN GEOMETRIDAE. — XXXVl. 



BY HARRISON G. DYAR, WASHINGTON, D. C. 



Synomila siiboctirearia Uiilst. 



Eg-g. — Elliptical, sides loundedlj flat- 

 tened, truncation rounded, a little oblique, 

 outline in general a little irregular, no end 

 depression. Reticulations circular-hexago- 

 nal, rounded, rai.sed, the cell areas forming 

 round pits like a thimble all over the sur- 



face. Pale velloNvish pink, turning darker. 

 Size .6 X .5 X ■+ mm. Laid loose, easih- lol- 

 ling around. 



Stage I. — Head rounded, erect, sligbtlv 

 bilobed, free, dark dull brown ; width .3 nun. 

 Body moderate, normal, translucent sordid 

 whitish, marked with sordid vinous brown. 



