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



KEY TO ADULT FEMALES 



1. Anal ring or margin of anal opening without setae or with 1 



or 2 setae 2 



Anal ring with 4 or G setae 50 



2. Marginal 8 -shaped pores in a doable row 3 



Marginal B-shaped pores in a single row 4 



3. Marginal quinquelocular pores numerous; multilocular pores. 



totaling 35-40, in t complete rows ami l or 2 interrupted 

 rows; margin of anal opening without setae; mounted 

 specimens usually at least 1.25 nun. in diameter 



acaciai Morrison and Morrison, p. 37. 



Marginal quinquelocular pores sparse; multilocular pores, 



totaling 2-6, in 2 indefinite rows: margin of anal opening 



with setae: mounted specimens usually less than 1 mm. 



in diameter viennae, new species, p. 222. 



4. (2) Tubular ducts around 7.2 u long 5 



Tubular duets 16 48 u long 6 



5. Multilocular pores approximately 250 in number, arranged 



in groups within rows; dark-rimmed 8-shaped pores un- 

 usually numerous and arranged in conspicuous groups; 2 

 sclerotized contiguous collars sunken in derm al apes ot 



abdomen distinction, new species, p. 80. 



Multilocular pores •".<"> !•! in number, not arranged ;i^ above; 

 dark-rimmed 8-shaped pores nor particularly numerous or 

 conspicuous; no such sclerotized collars 



spectabiU Newstead, p. 194. 



6. (4» Entire apex of abdomen heavily sclerotized; marginal B-shaped 



pores present only on lateral margins, with 7 11 on each 



side of body scirrosis, new species, p. 1*4. 



Apex of abdomen not as above; marginal B-shaped pores present 

 elsewhere than on lateral margins, more numerous than 

 above 7 



7. Apical setae no! more than 12 u long, shorter or very slightly 



longer than a posterior marginal B-shaped pore 8 



Apical setae al least 20 u ion-, much Longer than a posterior 



marginal 8 shaped pore 14 



8. Apical si zimately '.» u ion-, approximately the same 



Length as a posterior marginal 8 shaped pore, about one- 



half the length of a tubular duct ._ 



Apical setae not more than 5.5 u long, distinctly shorter than a 

 posterior marginal 8-shaped pore, one-fifth to one-ninth 

 the Length of a tubular duct 11 



9. With :i sclerotized, heart-shaped area associated with anal ring 



setae; anal iinu r setae around it; u Long, about twice the 



Length of apical setae difficile, new species, p. 78. 



Withoul a heart-shaped area as above; anal ring setae 7 10 m 



long, of practically the same length as apical setae 10 



10. With 4 <; multilocular pores; marginal 8-shaped pons continu- 



ous between apical setae; marginal trilocular pores absenl 

 between apical setae; mounted specimens measuring 0.85 l 



mm. Long and 0.6 wide degeneratum, new species, p. 75. 



With 20-28 multilocular pores; marginal 8-shaped pores usually 

 absenl between apical seta< ; marginal trilocular po 

 usually present between apical setae; mounted specimens 

 measuring 1-1.75 mm. long and 0.5 0.9 wide 



shniic. new species, ]). 187. 



11. (8) With 8-shaped pores in median area of ventral surface approxi- 



mating marginal 8-shaped pores in size; with quinquelocu- 

 lar pores dorsad as well as ventrad of marginal 8-shaped 



pores ceriferum ceriferum Green, p. 63. 



With 8-shaped pores on ventral surface, but none approximat- 

 ing marginal 8-shaped pores in size; without quinquelocu- 

 lar pores dorsad of marginal 8-shaped pores 12 



12. With a rectangular, sclerotized plate containing multilocular 



pores, on ventral surface posterior to anal opening 



singulare, new species, p. 190. 

 Without such a plate 13 



