INSECUTOR INSCITI^ MENSTRUUS 15 



Stage II. — Head bilobed, yellow, width about 0.50 mm. ; 

 ocelli black. Body subcylindrical, general color "chrome 

 orange" ; warts "chrome orange" on all segments except on 

 the first two abdominal, and on the fifth, sixth, and seventh 

 abdominal, where they are a dark brown. Black hairs in this 

 instar more prominent than the white ones. 



Stage III. — Head bilobed, orange, width about 0.80 mm. 

 General body color "burnt sienna" with warts of same color 

 on thoracic segments and on abdominal segments 3 and 4, and 

 8 and 9. On the other segments the tubercles are black. Body 

 densely clothed with black hairs except on third and fourth 

 abdominal segments, which bear light brown hairs arising from 

 the dorsal tubercles. A few short inconspicuous white hairs 

 arise from the dorsal and lateral warts, excepting on the black- 

 tubercled segments. 



Stage IV. — Head reddish brown, width about 1.25 mm. 

 Clothing of thoracic segments, reddish brown ; of abdominal 

 segments 1-7, inclusive, black, except for light brown arising 

 from dorsal warts on abdominal segments 3 and 4. Last two 

 abdominal segments clothed with reddish-brown hair. 



Stage V. — Head dark reddish brown, width about 1.5 mm. 

 First two abdominal segments brown, with darker coloring 

 around the bases of the warts. Hairs all black except those 

 arising from the dorsal and subdorsal warts of abdominal seg- 

 ments 3 and 4. Tubercles of last two segments, yellowish 

 brown. 



Stage VI. — Head broader than high, "Indian red," width 

 about 2.25 mm. A distinct inverted "Y" in pink on the face, 

 clypeus small. Cephalic hairs coarse and light brown. Body 

 black, tubercles "Indian red," all hairs black except a few 

 dark-brown ones on the thoracic segments. A rather conspicu- 

 ous lemon-yellow spiracle surrounded by a black ring on all 

 segments but the last two thoracic and the last abdominal. 

 Thoracic legs reddish brown, prolegs dark. 



Stage VII. — No noticeable difference between this and pre- 

 vious instar. Width of head about 2.75 mm. 



Stage F///.— Width of head about 3.8 mm. Out of 15 

 maturing larvae only three reached this instar. 



