Eutrichodesmus reductus Golovatch, Geoffroy, Mauries &amp; VandenSpiegel 2009, sp. n.
Creators: name: Golovatch, Sergei
name: Geoffroy, Jean-Jacques
name: Mauriès, Jean-Paul
name: VandenSpiegel, Didier
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplopoda
Polydesmida
Haplodesmidae
Eutrichodesmus
Eutrichodesmus reductus

description: <i>Eutrichodesmus reductus</i> Golovatch, Geoffroy, Mauriès &amp; VandenSpiegel, sp. n. urn:lsid:zoobank.org:act: 1726A727-8FC2-4BF8-807D-8DFC1C54380C Figs 31-33 <b>Type material:</b> Indonesia, Sulawesi Selatan, kab. Maros: Samanggi, Gua Saripa Cave, hand collected, 18.VIII.1990, leg. A. Bedos and L. Deharveng (SULS-214), holotype ♁ (MZB), paratypes: 1 ♁ (MNHN JC 325), 1 &amp;female; (SEM). <b>Name:</b> To emphasize the strongly underdeveloped paraterga 2 and lack of metatergal tuberculation. <b>Diagnosis:</b> Differs from congeners except <i>E. communicans</i> Golovatch, Geoffroy, Mauriès &amp; VandenSpiegel, 2009 by the strongly underdeveloped paraterga 2, coupled with 19 body segments and the absence of metatergal tuberculation; from <i>E. communicans</i> by a very short tergal trichome, from it and other congeners in a few minor details of gonopod structure (in particular, the shape of the telopodite). <b>Description:</b> Length of adults of both sexes ca 4.0- 4.2 mm, width 0.45-0.5 mm, body broadest at midbody segments. Holotype ca 4.0 mm long and 0.45 mm wide. Coloration uniformly pallid, shown pinkish because of a photographic artifact (Fig. 31). Adults with 19 segments, body subcylindrical (Figs 31, 32A), volvation apparently incomplete due to insufficiently wide and low paraterga. Head (Fig. 33A) slightly transverse, with a poorly separated pair of very low, paramedian tubercles above antennal sockets; antennae relatively short and clavate, antennomere 6 longest; tegument (Figs 33 C-E) and many other characters (Figs 32F, 33B) much as in <i>E. distinctus</i> sp. n.; collum and following metaterga devoid of tuberculation, beset with numerous, irregularly arranged, extremely short setae (Fig. 32 B-F, 33C-E). Paraterga directed ventrolaterad, slightly interrupting contour of convex dorsum, short, not reaching level of venter (Figs 32 A-D); paraterga 2 (Fig. 32B) only a little enlarged compared to following ones, indistinctly lobulate both anterolaterally and laterally, with only a single noticeable lobe forming a schism ledge, both schism and hyposchism very small; paraterga 3 and 4 not narrower than others, overlap typical already from paraterga 4, not paraterga 5 as in preceding congeners. Paraterga broadly rounded caudally, very indistinctly lobulate laterally and with a single evident lobulation caudolaterally (Figs 32 C-E, 33C). Limbus distinctly denticulate, almost hidden by nearby abundant microvilli (Fig. 33D, E). Pore formula normal, ozopores located dorsally near base of caudal corner of paraterga (Fig. 33C). Legs relatively long and slender, evidently surpassing edge of paraterga (Fig. 33B). Gonopods (Fig. 33F, G) relatively complex. Coxae abundantly micropapillate, but only with a few macrosetae. Telopodite elongate, only slightly arcuate, with a large, papillate, peculiar, distofemoral outgrowth (dp) in distal one-third and a slender but short solenomere bearing a few small setae (but no pad!) subapically at base of a very complex tip represented by two erect teeth, a longer uncus and a group of minute outgrowths. <b>Remarks:</b> This small-bodied, pallid, non-volvatory (= “haplodesmid”, see Golovatch et al. 2009) species seems to be especially close, morphologically as well as geographically, to <i>E. communicans</i> from Vanuatu, Melanesia, southwestern Pacific (Golovatch et al. 2009), possibly representing still one more troglobite.
description: Published as part of <i>Golovatch, Sergei, Geoffroy, Jean-Jacques, Mauriès, Jean-Paul &amp; VandenSpiegel, Didier, 2009, Review of the millipede genus Eutrichodesmus Silvestri, 1910 (Diplopoda, Polydesmida, Haplodesmidae), with descriptions of new species, pp. 1-46 in ZooKeys 12 (12)</i> on pages 37-40, DOI: 10.3897/zookeys.12.167, http://zenodo.org/record/576460
description: {"references": ["Golovatch SI, Geoffroy J-J, Mauries J-P, VandenSpiegel D (2009) Review of the millipede family Haplodesmidae, with descriptions of some new or poorly-known species (Diplopoda: Polydesmida). In: Golovatch SI, Mesibov R (Eds) Advances in the Systematics of Diplopoda I. ZooKeys 7: 1 - 53."]}