Otostigmus telus Chamberlin 1939
Creators: name: Lewis, John G. E.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Chilopoda
Scolopendromorpha
Scolopendridae
Otostigmus
Otostigmus telus

description: Otostigmus telus Chamberlin, 1939
O. telus Chamberlin, 1939, 4. Pionierbivak, New Guinea [Irian Jaya, Indonesia]. O. telus: Chamberlin: 1944b, 3 (in list).
Description. (From Chamberlin (1939)). Length 48 mm. Antennae with 23 articles, the basal 2.25–2.33 glabrous. Tergites with complete paramedian sutures from 5, marginate from 8, low rounded keels from about 5, with very fine spinules. Ultimate tergite with posterior median depression. Sternites smooth, sternite of ultimate leg-bearing segment narrowed posteriorly, posterior margin “curved”. Coxopleural process with three apical and two lateral spines. No dorsal spine.
Legs 1–19 with two tarsal spurs, 20 with one, 21 with none. Ultimate leg prefemoral spines VL 3, VM 3, DM 1, CS 1.
Remarks. Chamberlin (1939) did not describe the forcipular coxosternal tooth-plates. He stated that it was a species close to O. loriae. It is incompletely described and is thus a nomen dubium. The holotype is in the Bogor Zoological Museum, Java.
1 Forcipular coxosternum with more than 4+4 main teeth....................................................... 2
- Forcipular coxosternum with 3+3 or 4+4 main teeth.......................................................... 5
2 Legs 1–4/5 only with two tarsal spurs. Sternites 11–20 with “scratches” (Fig. 57). 6+6/8 forcipular coxosternal teeth.................................................................................. O. striolatus Peninsular Malaysia
- Legs 1–18 with two tarsal spurs. Sternites without “scratches”.................................................. 3
3 11+9 small forcipular coxosternal teeth. Ultimate leg prefemoral spines VL2, VM2 spines and a corner spine..................................................................................... O. brevidentatus Peninsular Malaysia
- With 6–10 teeth on each coxosternal tooth-plate. Ultimate leg prefemur with (6) 7–12 spines in three or four rows and a corner spine............................................................................................... 4
4 Coxosternal tooth-plates not occupying entire anterior margin of coxosternite (Fig. 43)..... O. multidens multidens SE Asia
- With unusually wide coxosternal tooth-plates occupying entire anterior margin of coxosternite..................................................................................................... O. multidens nordicus Vietnam
5 Antennae of 17 articles................................................................................ 6
- Antennae with more than 17 articles, usually 20–23 but 18 in O. kashmiranus (which has complete sternite paramedian sutures)............................................................................................ 11
6 Forcipular coxosternum with 3+3 main teeth (Fig. 2)......................................................... 7
- Forcipular coxosternum with 4+4 main teeth (Fig. 50)........................................................ 8
7 A large species, up to 57 mm. Sternites with short anterior paramedian sutures. Sternite of ultimate leg-bearing segment with sides diverging and posterior margin concave................................................. O. ateles Australia
- A smaller species, up to 32 mm. Sternite paramedian sutures almost complete. Sternite of ultimate leg-bearing segment qua- dratic........................................................................... O. australianus Australia (The Malanda spm. of “ O. australianus ” hereabouts.)
8 Tergites without paramedian sutures, coxopleuron with single apical spine............. O. foveolatus Peninsular Malaysia.
- Most sternites with paramedian sutures and coxopleuron with two apical spines.................................... 9
9 Tergites keeled and spined from 5, 6 or 7 in most specimens. Sternite of ultimate leg-bearing segment with rounded sides converging posteriorly, the posterior margin usually rounded. With two tarsal spurs on leg 1 only or none................................................................................................... O. seychellarum Seychelles
- Tergites without keels or spines. Sternite of ultimate leg-bearing segment trapeziform. The posterior margin rounded, straight or concave. Two tarsal spurs on first 3, 4 or 5 pairs of legs.................................................... 10
10 Leg 20 with a tarsal spur, coxopleuron with a lateral spine........................................ O. orientalis India
- Leg 20 without a tarsal spur, coxopleuron without a lateral spine.. O. oatesi Burma and possibly India (requires confirmation).
11 Sternite paramedian sutures complete. Coxopleuron with four apical and one lateral spine........... O. kashmiranus India.
- With short anterior paramedian sutures or none. Coxopleuron with two apical and one lateral spine (three apicals only in O. niasensis)........................................................................................... 12
12 Ultimate leg prefemur with two rows of spines (VM 3, VL 2–3) or three rows, each of two spines, no corner spine. Usually legs 1–17 to 1–19 with two tarsal spurs....................................................... O. ruficeps India.
- Ultimate leg prefemur with three or four rows of spines and a corner spine. First 1–3, 4 or 5 pairs of legs with two tarsal spurs................................................................................................... 13
13 Coxopleuron with three apical spines (no lateral spine). Ultimate leg without a tarsal spur........... O. niasensis Sumatra.
- Coxopleuron with two apical and one lateral spine. Ultimate leg with a tarsal spur................................. 14
14 Sternite of ultimate leg-bearing segment trapezoidal (Fig.39). Tergites generally without spinules................................................................................................... O. metallicus SE Asian Islands.
- Sternite of ultimate leg-bearing segment parallel sided. (Fig. 66). Tergites with spinules................. O. sucki Borneo.
description: Published as part of Lewis, John G. E., 2014, A review of the orientalis group of the Otostigmus subgenus Otostigmus Porat, 1876 (Chilopoda: Scolopendromorpha: Scolopendridae), pp. 388-413 in Zootaxa 3889 (3) on pages 408-411, DOI: 10.11646/zootaxa.3889.3.3, http://zenodo.org/record/224919