Pseudotremia

Shear, William A., 2011, Cave millipeds of the United States. X. New species and records of the genus Pseudotremia Cope. 2. Species from Virginia, USA (Diplopoda, Chordeumatida, Cleidogonidae), Zootaxa 3109, pp. 1-38 : 5-6

Key to Pseudotremia in Virginia, based on males

1a. Depigmented, troglomorphic, usually with less than 12 ocelli................................................... 2

1b. Pigmented, with 15–25 ocelli........................................................................... 10

2a. Heads enormously swollen (figs. 34, 35); about 6 reduced, depigmented ocelli; Giles Co................. peponocranium

2b. Heads normal; fewer or more depigmented ocelli............................................................ 3

3a. Metazonites evenly covered with regular, small, wart-like tubercles (fig. 91); Lee Co.......................... piscator

3b. Metazonites otherwise.................................................................................. 4

4a. Four or fewer ocelli, or appearing eyeless; Allegany Co................................................. cerberus

4b. About 10–12 ocelli.................................................................................... 5

5a. Gonopod LAP divided (fig. 69); Wise Co............................................................. hubbardi

5b. Gonopod LAP entire................................................................................... 6

6a. Gonopods with a ventral colpocoxite process................................................................ 7

6b. Ventral colpocoxite process absent........................................................................ 8

7a. Gonopod MAP with subapical spine (fig. 99); Lee Co.................................................... culveri

7b. Gonopod MAP without subapical spine (fig. 116); Lee Co............................................. inexpectata

8a. Gonopod colpocoxites reduced (fig. 76); Scott Co....................................................... ryensis

8b. Gonopod colpocoxites of normal size...................................................................... 9

9a. Row of 4–6 distinct tubercles across posterior margin of anterior metazonites; Lee Co.......................... nodosa

9b. No such tubercles; Giles Co....................................................................... orndorffi

10a. About 1.5 mm wide, 14–20 mm long; metazonites smooth or nearly so.......................................... 11

10b. More than 2.0 mm wide, more than 25 mm long; metazonites smooth or with rugae or tubercles...................... 12

11a. About 20 ocelli; segmental shoulders prominent (fig. 88); Lee Co........................................... valga

11b. About 15 ocelli; segmental shoulders weak; Montgomery Co.......................................... cavernarum

12a. Metazonites smooth or nearly so......................................................................... 13

12b. Metazonites roughened with tubercles or rugae............................................................. 15

13a. Ventral branch of LAP erect, forked; MAPs much reduced, without subapical or apical spines; Giles and Montogomery Cos................................................................................................ sublevis

13b. Ventral branch of LAP not erect, not forked; MAPs of normal size, with subapical spines............................ 14

14a. Gonopod MAPs with apical spine (fig. 43); Patrick Co................................................... glaber

14b. Gonopod MAPs without apical spine (fig. 22); Botetourt Co............................................. pomarium

15a. Gonopod MAPs lacking spines.......................................................................... 16

15b. Gonopod MAPs with at least one set of spines.............................................................. 18

16a. Width about 2.3 mm; Bath Co....................................................................... loomisi

16b. Width 2.7 mm or greater............................................................................... 17

17a. Gonopod LAPs twisted; VCP large, two-pronged; DCP absent (figs. 106–108); Lee Co....................... salfodina

17b. Gonopod LAPs curved, not twisted; VCP small, toothed; DCP grapple-like; Tazewell Co.................... tuberculata

18a. Apical spine present on gonopod MAPs................................................................... 19

18b. Apical spine absent from gonopod MAPs.................................................................. 22

19a. Metazonites covered with many small tubercles; gonopod LAPs undivided; VCP absent; Allegany and Bath Cos...... alecto

19b. Metazonites otherwise; gonopod LAPs divided; VCP present.................................................. 20

20a. Width about 2.3 mm; VCP very large, harpoon-like (figs. 55–57); Washington Co...................... jaculohamatum

20b. Width greater than 2.5 mm; VCP otherwise................................................................ 21

21a. Gonopod VCP as two large, hooked blades (fig. 63); Wise Co............................................. fremens

21b. Gonopod VCP single, curved, acute; Lee Co..................................................... johnholsingeri

22a. Gonopod LAPS large, broad, much divided, antler-like (fig. 50); Smyth Co................................. fergusoni

22b. Gonopod LAPs not antler-like.......................................................................... 23

23a. Twenty-five ocelli; width 3.0 mm; gonopod LAPs twisted; VCP an upright, blunt rod, DCP absent (figs. 12,13); Bath Co.................................................................................................. contorta

23b. Seventeen to 19 ocelli; width 2.8 mm or less; gonopod LAPs curved, not twisted; VCP absent or small; DCP present..... 24

24a. Gonopod VCP grapple-like, ending in retrorse hooks; metazonites with posterior row of tubercles; Smyth Co........ momus

24b. Gonopod VCP saber-like, without hooks; subapical spines of MAPs very long; metazonites with low rugae; Allegany Co. south to Lee Co................................................................................... hobbsi