28 MISC. PUBLICATION 4 2 4, U. S. DEPT. OF AGRICULTURE 



Key to Larvae — Continued 



First antennal segment without setae ; 20-40 dorsal 8-shaped 

 < pores, varying in size, some much smaller, others much 



larger, than marginal pores of same segments 



pinangae, new species, p. 156. 



23. (20) Apex of abdomen with 3 or 4 pairs of setae ; fewer than 18 dorsal 



8-shaped pores, which are very small, not approximating 



the marginal in size 24 



Apex of abdomen with at least 4 pairs of setae; at least 18 

 dorsal 8-shaped pores, which are fairly large, some approxi- 

 mating the marginal in size 25 



24. Anal ring differentiated from anal opening; beak with 4 pairs 



of setae ; about 12 dorsal 8-shaped pores ; anterior margin 

 of body with 1 pair of setae 



Phoenicia Ramachandra Rao, p. 154. 



J Anal ring not differentiated from anal opening; beak with 2 



pairs of setae; about 7 dorsal 8-shaped pores; anterior 

 margin of body with 3 pairs of setae 



inlabef actum, new species, p. 112. 



25. (23) Femur without setae; ^ixth antennal segment with 2 long 



setae; 18 dorsal 8-shaped pores, the largest distinctly 



smaller than a marginal pore singulare, new species, p. 190. 



Femur with 1 seta: sixth antennal segment with 3 long setae: 

 at least 26 dorsal 8-shaped pores, some nearly or actually 

 as large as marginal 26 



26. Coxa with 2 setae 27 



Coxa with 3 setae 28 



27. Fifth antennal segment without setae ; about 40 dorsal 8-shaped 

 pores ; marginal and dorsal 8-shaped pores conspicuously 

 elongate and slender ffttvum, new species, p. 99. 



Fifth antennal segment with 1 seta ; about 30 dorsal 8-shaped 

 pores; marginal and dorsal 8-shaped pores not conspicu- 

 ously elongate and slender bondari Lepage, p. 210. 



28. (26) Apex of abdomen with 5 pairs of setae: apical setae about 54 \i 

 long; 26-33 dorsal 8-shaped pores 



inusitatum, new species, p. 113. 

 Apex of abdomen with 4 pairs of setae ; apical setae about 36 m 

 long; about 36 dorsal 8-shaped pores 



pabnae Cockerell, p. 146. 



29. (17) Anterior margin of body without setae; antenna 5-segmented; 

 8 pairs of submarginal 8-shaped pores ; anal tube not 

 apparent acaciae Morrison and Morrison, p. 37. 



Anterior margin of body with setae ; antenna 6-segmented ; 

 8 pairs of submarginal 8-shaped pores in roboris, but 

 usually more, rarely less ; anal tube very short, but present 

 and differentiating anal ring from anal opening 30 



30. Anterior margin of body with 3 pairs of setae ; coxa with 4 

 setae ; apex of abdomen with 2 pairs of ventral setae — 31 



Anterior margin of body with 2 pairs of setae; coxa with 3 

 setae; apex of abdomen either without ventral setae or 

 with only 1 pair 33 



31. With 32-36 dorsal 8-shaped pores which are at least as large as 

 marginal pores ; first antennal segment with 2 setae ; 3 

 pairs of submarginal 8-shaped pores ; 5 pairs of submar- 

 ginal setae brevispinnm Brain, p. 56. 



With about 20 dorsal 8-shaped pores much smaller than mar- 

 ginal, and 2-5 of practically the same size as marginal; 

 first antennal segment with 1 seta ; 9 pairs of submarginal 

 8-shaped pores ; either 9 or 11 pairs of submarginal setae. 32 



32. Anterior and posterior spiracles each with 2 pores ; about 20 

 dorsal 8-shaped pores which are much smaller than mar- 

 ginal simplex, new species, p. 189. 



Anterior spiracle with 2 pores, posterior with none ; about 5 

 dorsal 8-shaped pores of practically the same size as mar- 

 ginal and around 25 minute vitreum, new species, p. 225. 



