Sanguinobolus Wesener, 2009

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 : 12-14

Sanguinobolus Wesener , gen. n.

urn:lsid:zoobank.org:act:C699F031-ACE7-4624-8B68-4C153FAE59E1

Type species: Sanguinobolus maculosus sp. n., monotypic

Diagnosis: distinguished by male tarsal pads less prominently developed than in other large-bodied Malagasy genera of Spirobolida ( Figs 7C, D ), and by anterior telopodite process with a wide and apically swollen tip, unlike in any other Malagasy spirobolid genus ( Figs 6A, B ). Sperm canal on posterior gonopod discharging into membranous area of telopodite main branch ( Fig. 6D ). Shares a large body size (> 100 mm) and an aposematic red-black colour pattern with Aphistogoniulus Silvestri, 1897 , Madabolus Wesener & Enghoff, 2008 , Corallobolus and Colossobolus gen. n.. Differs from Aphistogoniulus Silvestri, 1897 and Colossobolus gen. n. by the absence of a mesal branch on the posterior gonopod telopodite ( Fig. 6C ). The sperm canal in Sanguinobolus runs through the lateral branch, in Aphistogoniulus and Colossobolus gen. n. through the mesal branch. Differs from Colossobolus gen. n. in the absence of a central membranous area basally to the main branch of the posterior gonopod telopodite. Sanguinobolus resembles Colossobolus gen. n. in the presence of a short and wide mesal process on

the coxite of the anterior gonopod which is shorter or only slightly longer than the telopodite and sternite.

Distribution and ecology: only known from the isolated rainforest in Montagne d’Ambre, north Madagascar ( Fig. 5 ). Species of the genus are probably active on the soil surface because of their relatively long legs and aposematic colour pattern.

Etymology: Sanguinobolus , masculine, is composed of sanguinus, blood, which refers to the blood-red colour pattern of the single constituent species, and - bolus a common suffix for genera of the order Spirobolida .

Figures

Figure 5. Distribution map for the genera Corallobolus gen. n. and Sanguinobolus gen. n.

Figure 6. Sanguinobolus maculosus sp. n., male holotype. A left half of anterior gonopod, anterior view B left half, posterior view C left posterior gonopod, anterior view D left posterior gonopod, posterior view. Cx = coxite; Cx-br = coxite branch; Gr = groove on anterior gonopod; St = sternite; T = telopodite;T-mbr = telopodite main branch; Tp = telopodite process. Not to same scale.

Figure 7. Sanguinobolus maculosus sp. n., male paratype, SEM. A antenna, apical view, arrow indicates area shown in 7B B antennomere 6 with sensilla basiconica C male left midbody leg D detail of tarsus E left mandible, mesal view. 3iT = 3-combed internal teeth; eT = external tooth; LT = lateral tooth; mp = molar plate; pL = pectinate lamella; sb = sensilla basiconica.