30 MISC. PUBLICATION 42 4, U. S. DEPT. OF AGRICULTURE 



Key to Larvae — Continued 



48. (1) Anal ring with 4 setae 49 



Anal ring with 6 setae 51 



49. Anterior and posterior spiracles each with 2 pores ; 66-76 



dorsal 8-shaped pores medium, new species, p. 127. 



At least not both anterior and posterior spiracles with 2 pores 



each ; fewer than 50 dorsal 8-shaped pores 50 



50. Anterior spiracle with 2 pores, posterior with none ; axes of all 



marginal 8-shaped pores longitudinal to body margin ; 

 about 14 dorsal 8-shaped pores 



victoriae, new species, p. 221. 

 Anterior spiracle with 1 pore, posterior with 2 ; axes of at least 

 the posterior 6 pairs of marginal 8-shaped pores trans- 

 verse to body margin ; 36-40 dorsal 8-shaped pores 



quadrisetosum, new species, p. 170. 



51. (48) Apex of abdomen with 3 pairs of setae 52 



Apex of abdomen with more than 3 pairs of setae 62 



52. Anterior spiracle with 2 pores, posterior with 1 53 



Anterior spiracle with 1 pore and posterior with 1, or anterior 



spiracle with 2 pores and posterior spiracle with 2 55 



53. Fifth antennal segment without setae; femur with 1 seta; 



tarsus with 2 setae; about 16 dorsal 8-shaped pores ar- 

 ranged in a submedian row of about 3 and a lateral row of 

 about 5 on each half of body 



horneense, new species, p. 54. 



Fifth antennal segment with 1 or 2 setae ; femur with 3 setae ; 



tarsus with 3 setae ; more than 16 dorsal 8-shaped pores 



arranged in a submedian and in a lateral row on each half 



of body, but the number in each row not as above 54 



54. First antennal segment with 1 seta ; about 32 dorsal 8-shaped 



pores arranged in a submedian row of about 10 and a lat- 

 eral row of about 6. on each half of body; 2 pairs of setae 

 between antennae and mouth parts 



exiguum Green, p. 89. 



First antennal segment with 2 setae ; about 24 dorsal 8-shaped 



pores arranged in a submedian row of about 10 and a 



lateral row of about 2 on each half of body ; 3 pairs of setae 



between antennae and mouth parts 



rubrocomatum Green, p. 178. 



55. (52) Anterior and posterior spiracles each with 1 pore 56 



Anterior and posterior spiracles each with 2 pores 59 



56. Anal ring with approximately 16 pores ; anal ring setae about 



12.6 ix long florum, new species, p. 94 



Anal ring without pores ; anal ring setae less than 8 fi long 57 



57. Fifth antennal segment with 1 seta; about 18 dorsal 8-shaped 



pores arranged in a submedian row of about 9 on each half 

 of body ; apical setae about 28 fi long 



udagatnae Green, p. 212. 

 Fifth antennal segment without setae ; either less or more than 



18 dorsal 8-shaped pores ; apical setae about 45 /x long 58 



58. About 16 dorsal 8-shaped pores arranged in a submedian row of 



about 8 on each half of body ; axes of the posterior 6 pairs 

 of marginal 8-shaped pores longitudinal or slightly diagonal 



to body margin masuil Kuwana, p. 126. 



About 35 dorsal 8-shaped pores arranged in a submedian row of 

 about 10 or 11 and a lateral row of about 7 or 8 on each half 

 of body ; axes of the posterior 6 pairs of marginal 8-shaped 

 pores transverse to body margin sasae, new species, p. 182. 



59. (55) Fifth antennal segment without setae; femur without setae; 10 



pairs of submarginal 8-shaped pores; about 44 dorsal 



8-shaped pores sumatrae, new species, p. 204. 



Fifth antennal segment with 1 seta ; femur with at least 1 seta ; 

 9 pairs of submarginal 8-shaped pores ; fewer than 40 dorsal 

 8-shaped pores 60 



