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



Key to Adult Females — Continued 



68. (66) Marginal quinquelocular pores absent, or only 1-4 such pores 



where each spiracular pore band meets body margin 



zanthenes, new species, p. 227. 

 Marginal quinquelocnlar pores present and at least fairly numer- 

 ous 69 



69. Dorsal 8-shaped pores usually absent, but 2-6 such pores rarely 



present along median line 



fimbriatum (Fonscolombe) , p. 91. 

 Dorsal 8-shaped pores present, more numerous than above, 



arranged in transverse rows, at least in median area 70 



70. Multilocular pores, totaling 55 180, arranged in 3 or 4 complete 



and 2-4 interrupted rows, but with a total of at least 5 and 



sometimes 6 s rows; apical setae 1<k> 128 p long 71 



Multilocular pores, totaling 1 i 55, arranged in •"> complete rows. 

 or in .". complete and l Interrupted row. but with a total 

 of less than 5 rows; apical setae less than 100 n long— 72 



71. Dorsal 8-shaped pores in median groups and scattered from 



these to body margin, numerous, the majority as large as 

 marginal 8-shaped pores: marginal row of quinquelocular 

 pores interrupted for at leasl 30 8-shaped pores of nearer 

 row anteriorly and terminating as near to posterior spi- 

 racular pore band- as to apical setae" 



algeriense (Newstead), p. 42. 

 Dorsal 8-shaped pores in median groups and sometimes scat- 

 tered from these to body margin, the scattered pores either 

 numerous and much smaller than marginal pores or sparse 

 and slightly smaller; marginal row of quinquelocular pores 

 Interrupted for less than 3<> 8-shaped pores of nearer row 

 anteriorly and terminating slightly or much nearer to 

 apical setae than to posterior spiracular pore bands 



arabidis < Signorel ), p. 44. 



72. (70) Marginal quinquelocular pores In a single row starting about 



4 pores anterior to anterior- spiracular pore bands and 

 ending about 10 pores posterior to posterior spiracular 

 pore bands; dorsal 8 shaped pores usually arranged in :'» or 

 4 transverse rows in median area, and totaling no more 

 than L'o. hin with a few sometimes scattered between 



median group and body margin; 1 1 2:> multilocular pores; 

 without disk pores among spiracular quinquelocular pores 

 and with about 4 among multilocular pores 



lauru "< . now species, p. n ( .>. 

 Marginal quinquelocular pores much more numerous than 

 above, interrupted for a tew pores at anterior end and 

 terminating about as near or nearer to posterior 8-shaped 

 pores than to posterior spiracular pore bands; dorsal 

 8-shaped pores arranged In 5 9 transverse rows in median 

 area and with many scattered between median groups and 

 body margin; 20-55 multilocular pores; with disk pores 

 among spiracular quinquelocular pores and usually with 

 more than 4 among multilocular pores 73 



73. Dorsal 8-shaped pores arranged in 5 or 6 transverse groups 



in median area and scattered from them to body margin; 

 24 36 quinquelocular pores in each spiracular band; multi- 

 locular pores in .". complete rows near genital opening and 

 in 1 interrupted row anterior to posterior spiracles; anal 

 ring setae around 72 n long- nevaden&e Balachowsky, p. 138. 

 Dorsal 8-shaped pores arranged in 7-4 > transverse groups in 

 median area and scattered from them to body margin; 

 43-65 quinquelocular pores in each spiracular band; multi- 

 locular pores in 3 complete rows near genital opening and 

 without any anterior to posterior spiracles; anal ring 

 setae 80-92 /* long stent ae Brain, p. 196. 



fl There is so much variation in those characters that associated larvae should be 

 examined for a positive segregation of the 2 species. 



