Hylekobolus

Wesener, Thomas, Enghoff, Henrik & Sierwald, Petra, 2009, Review of the Spirobolida on Madagascar, with descriptions of twelve new genera, including three genera of ' fire millipedes' (Diplopoda), ZooKeys 19 (19), pp. 1-128 : 101-102

publication ID	https://doi.org/ 10.3897/zookeys.19.221
publication LSID	lsid:zoobank.org:pub:C473F9F6-1AE7-4B3F-B17F-CA1C2709010C
DOI	https://doi.org/10.5281/zenodo.3791467
persistent identifier	https://treatment.plazi.org/id/1772122E-7863-FFA3-FF01-3FD3AB0DEE05
treatment provided by	Plazi
scientific name	Hylekobolus
status

Treatment

Key to the Hylekobolus View in CoL species:

1 Telopodite of posterior gonopod apically with a greatly enlarged membranous area (y in Fig. 66B View Figure 66 ). Whole posterior gonopod unusually wide ............ ............................................................................... H. anjanaharibe View in CoL sp. n.

– Telopodite of posterior gonopod, membranous area (y) not greatly enlarged. Posterior gonopod very slender ( Fig. 55O View Figure 55 )................................................. 2

2 Apical process of anterior gonopod telopodite tapering towards tip, laterally not projecting ( Fig. 34C View Figure 34 ). Telopodite of posterior gonopod not bending 90° but only 60° ( Fig. 64D View Figure 64 ) ............................................ H. andasibensis View in CoL sp. n.

– Apical process of anterior gonopod telopodite laterally always with a wellrounded, wide projection ( Fig. 55N View Figure 55 ). Telopodite of posterior gonopod always bending 90° ( Fig. 55O View Figure 55 ) ..................................................................... 3

3 Apical process (x) of posterior gonopod enlarged and triangular. Sperm canal discharging on tip ( Figs 65B, D View Figure 65 )..................................... H. marojejy View in CoL sp. n.

– Apical process (x) of posterior gonopod never triangular ( Fig. 55O View Figure 55 ). Sperm canal on special branch (z) protruding above gonopod............................... 4

4 Apical process (x) of posterior gonopod wide and membranous ( Figs 57F View Figure 57 , 58E View Figure 58 ). Sternite of anterior gonopod slender, triangular ( Figs 57E View Figure 57 , 58D View Figure 58 )...... 5

– Apical process (x) of posterior gonopod always completely sclerotized ( Fig. 55M View Figure 55 ). Sternite of anterior gonopod rectangular ( Fig. 56D View Figure 56 ), if triangular then not slender ( Fig. 55L View Figure 55 ) ................................................................................ 6

5 Central part of collum and anterior half of telson dark grey ( Figs 53B View Figure 53 , 57A View Figure 57 ). Retrorse process of anterior gonopod laterally not protruding above telopodite margin ( Fig. 57G View Figure 57 ). Telopodite of posterior gonopod without a membranous lobe ( Figs 57F, H View Figure 57 ).................................................. H. griseus View in CoL sp. n.

– Collum and telson shiny white ( Figs 53C View Figure 53 , 58A View Figure 58 ). Retrorse process of anterior gonopods laterally slightly protruding above telopodite margin ( Fig. 58F View Figure 58 ). Telopodite of posterior gonopod with a membranous lobe (y in Figs 58E, G View Figure 58 )............................................................................... H. albicollaris View in CoL sp. n.

6 Lateral margin (w) of posterior gonopod apically with a thick, swollen, wellrounded projection ( Figs 55M View Figure 55 , 60E View Figure 60 ). Apical process (x) basally wide, apically extended into a slender projection ( Fig. 55M View Figure 55 )............................................ 7

– Lateral margin of posterior gonopod without a swollen projection ( Figs 56E View Figure 56 , 59E, w View Figure 59 ). Apical process (x) either wide ( Fig. 56E View Figure 56 ) or slender ( Fig. 59E View Figure 59 ) ..... 8

7 Collum in anterior half entirely red or white ( Figs 53A View Figure 53 , 55A View Figure 55 ). Sternite of anterior gonopods wide, triangular ( Fig. 55L View Figure 55 ). Retrorse process of anterior gonopod laterally not protruding above telopodite ( Fig. 55N View Figure 55 ). Apical process (x) of posterior gonopod basally with a protruding margin ( Fig. 55M View Figure 55 )......... .......................................................................... H. brachiosauroides View in CoL sp. n.

– Collum grey, only at margins white ( Fig. 60A View Figure 60 ). Sternite of anterior gonopods wide and well-rounded ( Fig. 60D View Figure 60 ). Retrorse process of anterior gonopod laterally widely protruding above telopodite ( Fig. 60F View Figure 60 ). Apical process (x) of posterior gonopod basally wide, but not protruding ( Fig. 60E View Figure 60 ).................... ..................................................................................... H. montanus View in CoL sp. n.

8 Apical process (x) of posterior gonopod wide ( Figs 56E View Figure 56 , 63B View Figure 63 ). Retrorse process of anterior gonopod slightly protruding above telopodite lateral margin ( Fig. 56F View Figure 56 )................................................................................................... 9

– Apical process (x) of posterior gonopod slender ( Fig. 59E View Figure 59 ). Retrorse process of anterior gonopod widely protruding above telopodite lateral margin ( Fig. 59F View Figure 59 ) ............................................................................................ 10

9 Collum entirely red ( Fig. 56A View Figure 56 ). Sternite of anterior gonopod wide and rectangular ( Fig. 56D View Figure 56 ). Telopodite of posterior gonopod slender, 4 times longer than wide ( Fig. 56G View Figure 56 ). Males 60–65 mm long, 4.8–4.9 mm wide with 49–52 rings...................................................................................... H. rufus View in CoL sp. n.

– Collum anteriorly light, posteriorly darker grey. Sternite of anterior gonopod triangular ( Fig. 63A View Figure 63 ). Telopodite of posterior gonopod very wide, 2 times longer than wide ( Fig. 63D View Figure 63 ). Male 47 mm long, 4.2 mm wide with 46 or 47 rings................................................................................. H. latifrons View in CoL sp. n.

10 Central part of collum and anterior 3/4 of body rings dark grey ( Fig. 59A View Figure 59 ). Mesal coxite process of anterior gonopod well-developed ( Fig. 59D View Figure 59 ). Retrorse telopodite process relatively slender, but widely projecting ( Fig. 59F View Figure 59 ). Apical process (x) of posterior gonopod almost as slender as projection of sperm canal ( Fig. 59E View Figure 59 ) ................................................... H. goodmani View in CoL sp. n.

– Collum and posterior half of body rings light brown ( Fig. 62A View Figure 62 ). Body rings in anterior half only laterally with dark green colour, dorsally light brown. Each body ring dorsally with an isolated dark green spot. Mesal coxite process of anterior gonopod short ( Fig. 62D View Figure 62 ). Retrorse telopodite process wide and projecting ( Fig. 62F View Figure 62 ). Apical process (x) of posterior gonopod 4–5 times as wide as sperm canal ( Fig. 62E View Figure 62 )................................... H. analavelona View in CoL sp. n.