CHIGGERS — FARRELL 145 



Anomalies: One specimen with two anteromedian setae. One 

 specimen wider between the anterolaterals than between the pos- 

 terolaterals. 



Eyes : Two pairs ; anterior pair lateral to posterolateral setae. 

 Diameter of anterior eyes for 20 specimens, 7 to 10, mean 8.4; 

 of posterior eyes, 7 to 11, mean 8.3. Diameter of both anterior 

 and posterior eyes of a cotype of E. signator, 12. 



Dorsal setae: Setae well covered with setules on sides away 

 from body. Posterior setae with slightly fewer setules, tending 

 to terminate in V-shaped clefts, but of the same general form as 

 the other dorsals. In unengorged specimens humerals not dis- 

 tinctly set off from first posthumeral row. Length of humerals 

 of 90 specimens, 37 to 51 ; of setae near the middle of the first 

 row of posthumerals, 85 to 50; of setae in the posterior group, 

 27 to 36. 



Dorsal formulae for 26 specimens, including a fairly typical 

 specimen from each county : 



Oklahoma 



Latimer County: 2 . . 11 . . 15 



Ohio 



Clermont County: 2 . . 10 . . 14 



Kentucky 



Rowan County: 2 . . 10 . . 14 



North Carolina 



Durham County: 2 . . 10 . . 12 



Orange County: 2 . . 10 . . 13 



Maryland 

 Prince Georges County: 2 . . 10 . . 15 



Pennsylvania 



Bedford County: 2 . . 10 . . 12 . . 2 . . 12 . . ..10.. 7 



York County: 2 . . 10 . . 14 . . ..12.. ..10.. 9 



Lancaster County : 2 . . 9 . . 14 . . . . 14 . . 

 Westmoreland County: 2 . . 10 . . 12 . . . . 14 . . 



Indiana County: 2 . . 10 . . 16 . . . . 15 . . 



Jefferson County: 2 . . 10 . . 14 . . 2 . . 13 . . 



Clearfield County: 2 . . 10 . . 14 . . . . 15 . . 



Cameron County: 2 . . 10 . . 14 . . . . 17 . . 



McKean County: 2 . . 10 . . 12 . . . . 10+ 



Beaver County: 2 . . 10 . . 14 . . . . 13 . . 



Venango County: 2 . . 10 . . 13 . . 2 . . 13 . . ..12.. 9 



Center County: 2 . . 10 . . 16 . . ..14.. ..11.. 9 



Union County: 2 . . 10 . . 15 . . ..13.. ..10.. 8 



Schuylkill County: 2 . . 10 . . 15 . . ..13.. ..10.. 8 



Lycoming County: 2 . . 10 . . 14 . . . . 14 . . . . 9 . . 7 



Sullivan County: 2 . . 10 . . 13 . . ..14.. .. 9.. 9 



Bradford County: 2 . . 10 . . 15 . . ..14.. .. 9.. 7 



Monroe County: 2 . . 10 . . 14 . . ..12.. ..12.. 9 



Pike County: 2 . . 11 . . 15 . . ..12.. .. 9.. 7 



Wayne County: 2 . . 10 . . 15 . . ..12.. ..10.. 8 



2 . . 12 . . 2 



.. 12 



.. 12 



.. 12 

 .. 16 



10 .. 8 



7 .. 8 



12 .. 8 



12 .. 8 



13.. 8 



11 

 12 

 13 

 14 

 12 

 12 



10 

 8 

 9 

 10 

 9 

 9 



9+ 6 

 9 .. 8 



. 5 



. 4 



. 4 



. 5 



