THE CANADIAN ENTOMOLOGIST, 289 



LIFE HISTORY OF HYPSOROPHA HORMOS, HUBN. 



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



H. Jionnos is not uncommon on the persimmon in Alexandria County, 

 Virginia. Tiie species is double-brooded. 



Egg. — -Less than hemispherical, domed ; ribbed with about 48 ribs 

 around the margin, rather low, distinct, diminishing by confluence in 

 pairs toward vertex, very slightly waved. Cross striae faint lines crossing 

 the hollows, scarcely indicated on the ribs. Micropyle somewhat 

 broadly finely rounded reticular, not ridged. Diameter .6 mm. 



Stage I. — Head rounded, slightly bilobed, colourless, ocelli black ; 

 width about .4 mm. Body slender, colourless transparent, food green ; 

 feet on joints 7 and 8 rudimentary, not used, larva a semi-looper. Shields 

 scarcely cornified, faintly brown ; tubercles distinct, pale, dark bordered ; 

 setre short, stiff, white, i. and ii. in a square. Segments inoniliform, in- 

 cisures well marked, the segments not very strongly 3-annulate. Setae 

 primary. 



Stage II. — Head small, slightly bilobed, whitish, dull ; width .6 mm. 

 Body slender, translucent green, food dark green ; feet normal, small on 

 joints 7 and 8, but little smaller than those on joints 9 and 10 ; anal feet 

 projecting backward. No marks ; tubercles obscure, set?s minute, i. and 

 ii. faintly whitish. 



Stage III. — The same ; no perceptible marks ; width of head .9 mm. 

 Stage IV. — Head 1.3 mm. Tubercles i. and ii. and the segmental 

 folds distinctly whitish ; no other marks as yet. Another example came 

 out brown spotted at this stage. On the head, a dot on the vertex and 

 at tubercle i. ; a dash on each side of the cervical shield ; an addorsal 

 blotch on joint 4, and a dot on jomt 3 ; a spot below tubercle i. on joints 

 5, 6, 7, 8, ID, II and 13 ; a large patch across dorsum on joints 9 and 12 

 anteriorly ; some small dots on the sides and on joint 13 posteriorly. 



Stage V. — Head as high as joint 2, scarcely bilobed, pale green, not 

 shining, antennse and mouth whitish ; ocelli pale, in part black; width 

 1.8 mm. Body a little flattened, feet small, those of joints 7 and 8 

 slenderer than the others, those of joint 13 projecting backward. Trans- 

 lucent green, incisures folded, whitish, tubercles i. and ii. and the faintest 

 trace of a subdorsal line in a few scattered dots yellowish-white ; tubercles 

 iii., iv. and v. and a {tw dots about the tracheal line also slightly pigmented. 

 Ramifications of tracheae visible. Tubercle iv. of joint 5 at the upper 

 corner of spiracle, of joints 6 to 9 at the lower corner, of 10 below the 

 middle, of 11 nearly in line with tubercle v., of 12 at the middle. 



