Otostigmus nemorensis Silvestri, 1895

Lewis, John G. E., 2014, A review of the orientalis group of the Otostigmus subgenus Otostigmus Porat, 1876 (Chilopoda: Scolopendromorpha: Scolopendridae), Zootaxa 3889 (3), pp. 388-413 : 402

Otostigmus nemorensis Silvestri, 1895

Otostigma nemorense Silvestri, 1895 , 716. Sumatra.

Otostigmus nemorensis: Kraepelin, 1903 , 119, Fig. 56 . Sumatra, Java. O. (O.) nemorensis: Attems, 1930 , 142.

Description. Type material not examined. (Silvestri’s data augmented from Kraepelin (1903) the latter in parentheses). Length 44 mm. 21–23 antennal articles, (the basal 2.33 glabrous). 3+3 (or 4+4) forcipular coxosternal teeth. Tergites (without keels or spinules), with paramedian sutures from 4 (5), marginate from 7 (8). Sternites with short (anterior) paramedian sutures and with a posterior median depression. Sternite of ultimate leg-bearing segment subquadrate with a median sulcus (and posterior margin straight). Coxopleural process with two apical and one lateral spine. Legs 1–21 with a tarsal spur. (Two tarsal spurs on legs 1–4, 5–21 with one). Ultimate leg prefemoral spines 5, 3, 3, 3 (VL 4, VM 2, M 2–3, DM 1–2, CS 1).

Remarks. Kraepelin did not examine the type material presumably adding to Silvestri’s data from his Javan material. Attems (1930) repeated Kraepelin’s description except that he stated tergites with spinules (dornstrichelig), probably an error. O. nemorensis is very similar to O. sucki and Kraepelin stated that O. sucki was in many ways a spine-streaked O. nemorensis but I consider that the available data are not sufficient for a definite decision to be made as to its status and therefore regard it, for the present, as a nomen dubium.

Figures

FIGURES 55 – 62. Otostigmus striolatus. Syntypes. 55. Forcipular coxosternal tooth-plates ZMB spm. 56. Tergite 13 ZMB spm. (detail shown on left side only). 57. Sternite 16 ZMB spm. (partly freehand). 58. Ultimate leg-bearing segment ZMB spm. (detail of pores shown in posterior part of right coxopleuron). 59. Right coxopleural process ZSM spm. 60. Left coxopleural process ZSM spm. 61. Detached ultimate leg ZSM spm. 62. Second detached ultimate leg ZSM spm. FIGURES 63 – 67. Otostigmus sucki Syntypes. 63. Antennal article 3 dorsal spm. 2. 64. Right forcipular trochanteroprefemoral process and coxosternal tooth-plates spm. 3. 65. Ultimate tergite spm. 3. 66. Sternite of ultimate leg-bearing segment and left coxopleural process spm. 3. 67. Right prefemur ultimate leg spm 3 ventral. Scale bars = 1.0 mm except Figs 55, 58, 63 & 64 = 0.5 mm and Figs 59 & 60 = 0.1 mm.