LEPTOCERID. 
The peculiar curved form of the tibia and basal tarsal joint 
of the middle leg indicates some peculiar habit in the larval life 
of this species. 
PERIOD OF EMERGING.—Our earliest record of emerging is 
June 2oth. At that time most specimens had pupated, but a few 
were still in the prepupal state. These late specimens would 
probably emerge about the middle of July. 
DIsTINCTIVE CHARACTERS OF Larva.—Color light-green in 
life. Length, 9 mm. Tarsus of middle leg curved, figure 179. 
Swimming hairs on hind legs. 
SETODES GRANDIS. 
176. Larva. Head and thorax. 179. Middle leg. 
177. Larva. Frons. 180. Larva. Hind leg. 
178. Front leg. 181. Case. 
Head.—The ground color of the head is pale straw yellow; 
on the dorsal surface it is spotted with dark-brown, as in figure 
176; the ventral surface is without marks. ‘The mandibles are 
deeply grooved, and have several teeth on the inner surface; in 
color they are brown. 
The Thorax—The prothorax is straw yellow, mottled with 
oval brown spots, as in figure 176. 
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