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Hemisphaeroparia fusca, Golovatch, S. I., Fiemapong, A. R. Nzoko, Tamesse, J. L., Mauries, J. - P. & VandenSpiegel, D., 2018

Golovatch, S. I., Fiemapong, A. R. Nzoko, Tamesse, J. L., Mauries, J. - P. & VandenSpiegel, D., 2018, Trichopolydesmidae from Cameroon, 1: The genus Hemisphaeroparia Schubart, 1955. With a genus-level reclassification of Afrotropical genera of the family (Diplopoda, Polydesmida), ZooKeys 785, pp. 49-98 : 72-73

publication ID

 https://dx.doi.org/10.3897/zookeys.785.27422

publication LSID

 lsid:zoobank.org:pub:03935A66-FA34-4DEB-BEEA-00EC88094062

persistent identifier

https://treatment.plazi.org/id/430155E2-B5B3-4DF9-889A-589BABD13839

taxon LSID

 lsid:zoobank.org:act:430155E2-B5B3-4DF9-889A-589BABD13839

treatment provided by

ZooKeys by Pensoft

scientific name

 Hemisphaeroparia fusca
status

sp. n.

Hemisphaeroparia fusca sp. n. Figs 15, 16, 29A

Type material.

Holotype ♂ (MRAC 22757), Cameroon, Littoral Region, Nkam Division, Koukoe, forest, 04°08'N, 010°10'E, 28.IX.2017, leg. A.R. Nzoko Fiemapong and J.A.Yetchom Fonjo.

Paratypes: 1 ♂ (without gonopods)(MRAC 22758), 1 ♂ (SEM, MRAC 22759), same locality, 19.IV.2014; same locality, 21.III.2015; 1 adult ♀, 1 subadult ♀, 2 fragmented juveniles (MRAC 22760), same locality, together with holotype, all leg. A.R. Nzoko Fiemapong and J.A. Yetchom Fonjo.

Diagnosis.

Differs from all species of the genus by the absence of epicranial modifications (♂), coupled with the clearly more strongly developed and caudally acute paraterga compared to H. zamakoe sp. n. and most other congeners, as well as the presence of three prominent branches (ab, mb and bb) and a low lobe (lo) on the gonopodal telopodite and of a conspicuous foramen (fo) in the lateral wall to accommodate the end of the solenomere (sl) in a kind of pulvillus (Figure 16).

Name.

To emphasize the mostly dark coloration; adjective in feminine gender.

Description.

Length of holotype ca. 8.5 mm (♂), width of midbody pro- and metazonae 0.8 and 1 mm (♂), respectively. Length of paratypes (♀) 9.5 mm, width of midbody pro- and metazonae 0.9 and 1.2 respectively. Coloration in alcohol brown; head, antennae, gonopods, and venter light brown; legs light yellow-brown (Figure 29A). All type material badly overgrown with molds.

All other characters as in H. zamakoe sp. n., except as follows.

Head without epicranial modifications (Figure 15A, D, G). Antennae long, slightly clavate, reaching back to segment 3 (♂) or 2 (♀) when stretched dorsally. In length, antennomere 3> 2 = 5 = 6> 4> 7> 1; antennomeres 5 and 6 the largest. In width, collum <head <segment 2 <3 = 4 <5-17. Collum ellipsoid, lateral angles acute and narrowly rounded. Tergal setae relatively long, bacilliform, mainly 1/3 as long as metatergum (Figure 29A). Dorsum nearly flat. Paraterga well-developed, set high, at around upper 1/4 of metazonae, mostly slightly upturned caudad (Figure 15A, F, J). Caudal corner of paraterga increasingly well drawn behind towards telson, narrowly rounded until around midbody segments, thereafter acute and drawn behind rear tergal margin, sharp and subspiniform (♂, ♀)(Figure 15 A–F). Pleurosternal carinae traceable as a thin line on all segments.

Legs rather long and slender, ca. 1.3-1.4 (♂) or 1.1-1.2 (♀) times as long as midbody height; in length, tarsus> femur> prefemur> coxa = postfemur = tibia.

Gonopodal telopodites (Figure 16) almost fully concealed inside a large gonocoel, with three branches (ab, mb, bb), all contiguous and moderately only exposed beyond coxa, followed by a small round lateral lobe (lo) more basally. Seminal groove short, moving onto a short subspiniform solenomere (sl), the latter subtransverse and directed laterad, and perforating the lateral wall to form a conspicuous foramen (fo) resembling a pulvillus because of numerous microscopic transparent filaments around.

Specimens