Hyleoglomeris fanxipan, Nguyen ı Katsuyuki Eguchi & Hwang, 2019

Nguyen, Anh D., Eguchi, Katsuyuki & Hwang, Ui W., 2019, Two new pill millipedes (Diplopoda: Glomerida: Glomeridae) from high mountains of Vietnam, Journal of Natural History 53 (21), pp. 1369-1384 : 1374-1378

publication ID	https://doi.org/10.1080/00222933.2019.1646338
DOI	https://doi.org/10.5281/zenodo.3679863
persistent identifier	https://treatment.plazi.org/id/2C5787C9-3D7B-5A6D-FE44-33D671FCFA34
treatment provided by	Valdenar
scientific name	Hyleoglomeris fanxipan
status	sp. nov.

Treatment

Hyleoglomeris fanxipan sp. nov.

( Figures 6 – 10 View Figure 6 View Figure 7 View Figure 8 View Figure 9 View Figure 10 )

Material examined

Holotype. One male ( IEBR-Myr 673H)ı Lao Cai Prov. ı Sa Paı Hoang Lien National Parkı short bamboo forestsı Fanxifan Mt. ı 2ı800 – 2ı 900 m alt.ı 103°52 ʹ 42 ″ Eı 22°21 ʹ 22 ″ Nı 23 September 2017ı leg. Anh D. Nguyen & K. Eguchi.

Paratypes. One maleı three females ( IEBR-Myr 673P)ı with the same data as the holotype.

Diagnosis

An entirely blackish or greenish-black body; ocelli 7 + 1; thoracic shield with 10 – 12 vague transverse striae (but only three cross); telopods long and robust; syncoxital lobe roundly trapeziform; both prefemoral and femoral trichosteles present; femoral process directed mesoventrallyı strongly rugulose and folded in anterior side; tip strongly recurved; posterior surface of tip densely micropapillate; tibia without modifications; tarsus curvedı bearing two apical setae.

Etymology

Named (noun in apposition) after the Fanxipan Mountain where the type specimens were found.

Description

Size. Holotype male ( IEBR-Myr 673H). Width of second tergum 4.9 mm; body length 11.8 mm.

Colour. Entirely blackish or greenish-black except for two distolateral brownish-yellow marbled oval spots and lateral margins yellowish.

Head. Ocelli 7 + 1; lenses convexı shining black as background of the head. Tömösváry organs transverse ovalı ca. 2 – 2.2X wider than long. Antenna clavate apically; antennomere six largeı ca. 2.5 – 3.0X longer than wide. Antennal tip with four largeı apical sensory cones.

Body. Collum semicircuları with a very large-marbled yellowish-brown spot in the middleı and two transverse striae; other parts of collum brownish-black. Thoracic shield (= tergum 2) with a narrow hyposchismı reaching caudal margin; with 10 – 12 vague transverse striae; only 3 of which cross the dorsum. Other terga with 3 – 4 short vague transverse striae. Anal shield strongly rounded emarginate mediocaudally.

Legs. Leg-pair 17 strongly reducedı 4-segmented; coxite with a rounded outer lobeı with a setiferous tubercle distomesally; podomere 1 with a small distomesal setiferous knob. Leg-pair 18 less strongly reducedı 4-segmentedı with a simple syncoxital notch.

Genitalia ( Figures 8–10 View Figure 8 View Figure 9 View Figure 10 ). Telopods long and robust. Syncoxital lobe ( syl) roundly trapeziform. Syncoxital horns ( syh) highly elevatedı directed ventrallyı with numerous setae; tips truncated. Prefemur ( pref) longı densely micropapillate laterally and posterolaterallyı with a longı prominentı finger-shaped trichostele ( pret). Femora ( fe) broadı enlarged distallyı also bearing a longı prominentı finger-shaped trichostele ( fet)ı and with densely micropapillate apical cingulum. Femoral process ( fp) directed mesoventrallyı strongly rugulose and folded in anterior side; tip strongly recurved; posterior surface of tip densely micropapillate. Tibia ( ti) without modificationsı but the tibial process ( tb) short and stout. Tarsus ( ta) curvedı bearing two apical setae.

Variation. In other specimensı only 10 – 11 vague transverse striae are present on the dorsal surface of the thoracic shield. Width of second tergum 5.4 – 6.2 mm in the maleı 5.1 – 5.9 mm in the female; body length 11.0 – 11.4 mm in the maleı 12.0 – 14.0 mm in the female.

DNA barcode

COI barcode data (partial) is for the paratype uploaded to GenBank under the accession number MH248039. The new species shares the identity of 87% with Glomeris pustulata , G. connexa and G. minima .

Remarks

According to Golovatch et al. (2006) ı the new species seems to belong to the modesta - group characterised by the dark background and lighter pattern/markings. This group consists of eight speciesı mainly distributed in the Himalayas of India and Nepal. Howeverı the new species totally differs from the known modesta -group species in lacking axial spots on terga 2 – 11ı and in the presence of two distolateral brownishyellow marbled oval spots.