— 231 — 



two subventral rows of smaller ones, while on joint 13 there are two 

 tubercles in the dorsal rows. Body pale brown, heavily mottled 

 with blackish brown, especially in a broad dorsal band on joints 2 

 and 4, and laterally on joints 5 and 10. On joints 3 and 4, laterally, 

 is a subquadrate paler patch, yellowish above, and similar yellowish 

 marks dorsally on joints 6 and 7. The yellow patch on joints 10 

 and 1 1 is as before. A whitish ventral band on the last segments. 

 As the stage advances the lateral brown marks on joints 5-10 fade 

 into the ground color, leaving a narrow, black, subdorsal line and 

 all the yellow marks, except those on joints 10 and 11, disappear. 

 Duration of this stage four days. 



Fourth Larval Stage.— Head shaped as before, very pale 

 brown, thickly and evenly mottled with little crinkled lines of dark 

 brown; a few hairs. Width 2.1 mm. Dorsal process on joint 5 

 long, perpendicular in front, a little sloping behind, surmounted by 

 two whitish tubercles each bearing a hair. On joint 8 is a slight 

 elevation, on joint 9 a larger one, and a similar one on joint 12, a 

 little larger than that on joint 8, each surmounted by two tubercles 

 which, with those on the other segments, form row one ol the tirst 

 stage. The lateral ones are also present, small, whitish, each bear- 

 ing a hair. Body pale brown, mottled with dark brown, exenly 

 like the head, except that on joints 2 and 4 is a broad, dark brown 

 dorsal band, while the sides of these joints are often paler; on joints 

 6 to II is a narrow subdorsal line, and on the dorsum of joints 6 to 

 « afe oblique brown lines, one on each segment, posteriorly to which 

 the color is paler. The yellow patch on joints 10 and 11 (the usual 

 V-mark) is triangular on joint 10, Init on joint 11 is divided mto 

 three spots, the outer ones elongate, the posterior one small and 

 rounded. Venter nearly black by the confluence of the mottlings; 

 a broad, pale greenish, ventral band. Thoracic feet pale brownish 

 testaceous; anal ones elevated when at rest. Duration of this stage 

 four days. 



P'iFTH Larval Stagk.— Head higher than wide, slightly de- 

 pressed at the vertex and marked as in the preceding stage. Max- 

 ills;, bases of antenna; and ocelli, red-brown. Width 3.3 mm. The 

 body for joints 2 to 4, 6, 11 and 13, is not as high as the vertex of 

 the head; the dor.sal process on joint 5 is long and large, its sur- 

 mounting pair of tubercles pointing forward; joints 7 to 10 are 

 arched and apparently enlarged dorsally by the abdominal feet being 

 held close together, joints 8 and 9 each have a double hump, the 

 one on joint 9 the larger, but both shorter than the j)rocess on joint 

 5; a slight double hump on joint 12. its apices closer together than 



