YJQ PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 106 



Standard data of the type specimen from Clermont County, 



Ohio: 



AW PW AP SB ASB PSB Ah AM PL S 

 60 67 19 19 35 11 64 39 64 23* 

 ♦Head of sensilla only 

 Summary of standard data, inchiding the type, of five specimens 

 from each geographic region— Clark County, Iowa; Clermont 

 County, Ohio; Scioto County, Ohio; and Union County, Pa. (AM's 

 from 19 specimens, S's from 5 specimens) : 



AW 54-66, mean 58.1; PW 63-73, mean 67.2; AP 16-22, mean 18.5; 



SB 16-22, mean 18.9; ASB 25-37, mean 33.3; PSB 10-14, mean 11.9; 



AL 54-72, mean 65.6; AM 31-39, mean 35.6; PL 54-70, mean 61.6; 



S 26-31, mean 29.4. 

 Eyes: Two pairs, subequal in size. Diameters (from 14 speci- 

 mens) of anterior eyes, 10 to 13, m.ean 11.9; of posterior eyes, 

 9 to 13, mean 11.5. 



Dorsal setae: Arranged in six or seven rather clearly defined 

 transverse rows with a few irregularly placed on the posterior; 

 total number fev»^er than in E. rubra. Form of setae over most 

 of the body similar to E. rubra. Posterior setae with heavier 

 shafts; setules shorter, heavier, somewhat scalelike, reduced in 

 numbers and exposing portions of the shaft; free ends blunt or 

 with V-clefts. Length of humerals, 54 to 64; of setae near the 

 middle of the first posthumeral row, 50 to 63 ; of posterior setae, 

 41 to 56. 



Dorsal formulae for five specimens from each geographical 



region : 



Clarke County, Iowa: 2 . . 14 . . 15 . . . . 15 . . . . 10 . . 10. . 6 . +8 



2 . . 14 . . 16 . . . . 14 . . . . 9 . . 9 . . 8 . . 4 



2 .. 12 .. 15 .. .. 13 .. .. 9 .. 9 .. . +7 



2 . . 14 . . 14 . . . . 15 . . . . 11 . . 10 . . 7 . . 3 



2 .. 14 .. 14 .. .. 15 .. .. 9 .. 8 .. 8. +5 



Clermont County.Ohio: 2 . . 12 . . 13 . . . . 12 . . . . 11 . . 7 . . . +8 (Type) 



2 . . 12 . . 17 . . . . 12 . . . . 10 . . 10 . . 5 



2 . . 13 . . 14 . . . . 15 . . . . 12 . . . . +16 



2 . . 12 . . 14 . . . . 13 . . . . 12 . . 8 . . . -f7 



2 .. 13 .. 14 .. .. 14 .. .. 11 .. 11 .. 6 .. 4 



Scioto County, Ohio: 2 . . 12 . . 14 . . ..13.. . . 11 . . 8 . . .+7 



2 .. 12 .. 14 .. .. 12 .. .. 10 .. 7 .. 7 .. 7 



2 .. 12 .. 15 .. .. 13 .. .. 9 .. 8 .. 9 .. 4 



2 . . 14 . . 14 . . . . 14 . . . . 10 . . 11 . . 9 . . 6 



2 .. 12 .. 16 .. .. 12 .. .. 12 .. 10 .. 6 .. 1 



Union County, Pa.: 2 . . 12 . . 16 . . . . 14 . . 1 . . 10 . . 8.. 6.. 1 



2 . . 12 . . 15 . . . . 12 . . . . 9 . . 8 . . . -r9 



2 . . 13 . . 18 . . 1 . . 13 . . . . 9 . . 7 . . 6 . . 5 



2.. 13.. ?.. .. ?.. .. ?.. ?..?.. ? 



2 .. 12 .. 17 .. .. 14 .. .. ? .. ?..?.. ? 



7 indicates setae could not be counted. 



