A contribution to the knowledge of the centipedes of Saint Barthélemy Island (French Antilles), with re-descriptions of Newportia heteropoda Chamberlin, 1918 and Cormocephalus impressus Porat, 1876 (Chilopoda: Scolopendromorpha)
Author
Schileyko, Аrkаdy А.
text
Zootaxa
2018
2018-06-20
4438
1
59
78
journal article
29853
10.11646/zootaxa.4438.1.2
b9e09984-ea64-4dcf-aa00-0a42ea8b6e90
1175-5326
1294191
541FF57C-B838-4F65-B246-AE7D84B9B938
Key to the
Scolopendromorpha
of Saint Barthélemy Island
1. 23 leg-bearing segments............................................................................... 2.
-. 21 leg-bearing segments............................................................................... 5.
2. Leg-bearing segment 7 with spiracles, tarsus 2 of ultimate legs of several articles and longer than tarsus 1...................................................................................................
Newportia
(s.str.)
…
3.
-. Leg-bearing segment 7 without spiracles, tarsus 2 of ultimate legs consists of several articles or a single article which is shorter than tarsus 1........................................................................................ 4.
3. Tibiae 3/4–20 with lateral and ventral spurs..............................................
N. longitarsis virginensis
-. Tibiae 2–20 with a lateral spur only............................................................
N. heteropoda
4. Tarsungula very short, ultimate tarsus 2 of several articles.....................................
Newportia
(
Tidops
)
*
-. Tarsungula normal, ultimate tarsus 2 consists of a single article...................................
Scolopocryptops
*
5. Leg-bearing segment 7 with spiracles...............................................................
Rhysida
*
-. Leg-bearing segment 7 without spiracles.................................................................. 6.
6. Eyes absent..................................................................................
Cryptops
*
-. Eyes present........................................................................................ 7.
7. Spiracle atrium covered by cuticular folds................................................................. 8. -. Spiracle without cuticular folds.....................................................
Otostigmus
(
Parotostigmus
)
8. Legs without tarsal spurs.......................................................
Cormocephalus
:
C. i. impressus
-. Legs with tarsal spurs....................................................................
Scolopendra
… 9. 9. Tergite 1 with an anterior transverse suture.........................................................
S. crudelis
-. Tergite 1 without an anterior transverse suture............................................................. 10. 10. Prefemur of legs 20 with dorsal spines............................................................
S. alternans
-. Prefemur of legs 20 without dorsal spines................................................................ 11. 11. Prefemur of ultimate legs with up to 3(4) spines ventrally; tergite 21 without median suture...............
S. subspinipes
-. Prefemur of ultimate legs with at least 8 spines ventrally; tergite 21 with median suture....................
S. morsitans