August, igoo.] 



PSYCHE. 



93 



Valley, Aug. 1-4 (Scudder), Spring 

 Lake Villa, Utah Co., Utah, Aug. 1-4 

 (Palmer), and Gazelle, CaL, Sept. 4 

 (Mor.se). Besides these states, it has 

 been reported from the Yellowstone re- 

 gion ( Bruner ) , Dakota ( Thomas, 

 Bruner ), and Montana ( Thomas ). 



(^f the spread specimens I have seen, 

 all from east of the continental divide, 

 have the base of the wings as pellucid 

 as the distal half; while in all from 

 west of this line, the base of the wings is 

 washed with pale citron. 



LIFE HISTORIES OF NORTH AMERICAN GEOMETRIDAE. — XIII. 



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



Synchlora glaiicaria Giieii. The larva lias 

 been described (as rubivora Riley) by Riley, 

 Saiuuler.s and French but not in much de- 

 tail. 



Egg. Elliptical, strongly flattened on two 

 sides, the flat faces concave, sunken, the edges 

 well marked but a little rounded; side view 

 slightly wedge shaped, the broader end trun- 

 cate roundly, elevated in its center so as to 

 be almost quite round like the narrower end, 

 and is so except for a slight annular flatten- 

 ing, noticeable from side view. Surface all 

 finely hexagonally reticulate, the reticulations 

 not strt)nglv I'aised. Pale, slightly greenisii 

 yellow, shining. Size .6 X .5 X .3 mm. 

 Later turns pale red. 



Stage. I. Head round, slightly bilobed, 

 pale brown, mottled with paler, with short, 

 white, glandular setae; width about .3 mm. 

 Body cylindrical, smooth, tubercles rather 

 large, especially iv, which is cylindrical and 

 produced with a conical tip. Setae white ; on 

 abdomen short with flattened enlarged tips, 

 except iii (of joint 5) and iv (joints 6 to 9) 

 which is very long and has a bulbous tip. 

 This seta is sticky and bears, on its base 

 principally, the fragments which adhere to 

 the larva. Subdorsal setae of thorax and joint 

 12 also prolonged, but much shorter than the 

 long lateral ones. Dark brown-black mot- 

 , tied with ocherous, especially on joints 12 



and 13, which look lighter; traces of a dark 

 dorsal line. 



Stage II. Head rounded, slightly bilobed, 

 of the color of the body ; width .4 mm. Body 

 as before, the setae glandular but much 

 shorter, iv still the longest and arising from 

 a somewhat produced base. Color dull 

 brown, a whitish ground speckled with brown. 

 Skin granularly roughened. Larva rather 

 short and thick. It becomes entirely covered 

 with fragments of the flowers it feeds on, 

 which adhere to the sticky setae. 



Stage III. Head rounded bilobed, clypeus 

 rather high; shagreened, setae obscure; lu- 

 teous whitish, speckled with brown, heaviest 

 near the suture and on the sides of the lobes ; 

 width .8 mm. Body thick and robust, dor- 

 sum slightly flattened; tubercles angularly 

 elevated; setae small except iv, which is 

 large and arises from an elongated tubercle. 

 No marked lateral projections, the slight 

 angular projections nearly alike for all the 

 tubercles. Gray brown, densely frosted with 

 white granules, an obscure, double, white 

 dorsal line, divided by brown; traces of a white 

 lateral band on tlie angular elevations poste- 

 riorly, on anal plate and anal feet. Tuber- 

 cles pale, setae white. All the dorsum except 

 thorax and joints 12-13 covered with frag- 

 ments of flowers which adhere to the spiny 

 base of the short stitV seta iii. Feet pale. 



