AnimaliaacceptedgenusAccepted

Alluropus

Silvestri, 1911

GBIF:177020741

0year

ABOUT

Descriptions(6)

Figs 110 – 112

Schileyko, Arkady A., Vahtera, Varpu, Edgecombe, Gregory D. (2020): An overview of the extant genera and subgenera of the order Scolopendromorpha (Chilopoda): a new identification key and updated diagnoses. Zootaxa 4825 (1): 1-64, DOI: 10.11646/zootaxa.4825.1.1

Number of species. 1. Sexual dimorphism. Present.

Diagnosis. Median tooth of labrum well developed. Forcipular tooth-plates present, trochantero-prefemur with well-developed process (Fig. 111). Tergites lacking longitudinal keels. Sternites with paramedian sutures which may be incomplete. LBS 7 with spiracles, the spiracles with atrium (fig. 21 J in Siriwut et al. 2018). Legs with tarsal spur (s), legs 1 with prefemoral spur (Fig. 111). Coxopleural process normally developed, with spines (Fig. 110). Prefemur of the ultimate leg with numerous spines ventro-medially and ventro-laterally (not with “ a row of shallow tubercles ” as written in Edgecombe & Bonato 2011: 402). This prefemur with well-developed corner spine of characteristic shape: long and enlarged in males (Fig. 110) and visibly smaller, comb-like in females (Fig. 112, fig. 22 H in Siriwut et al. 2018). Ultimate tarsus 1 in males considerably swollen, with short, blunt dorsodistal projection (Fig. 110) followed by a disproportionately slender tarsus 2; pretarsus well-developed, with accessory spines.

(!) Alluropus Silvestri, 1911 Figs 110 – 112

Remarks. Treated as a genus in Edgecombe & Bonato (2011: 402), Siriwut et al. (2018: 1005). The latter authors wrote in the Diagnosis of Alluropus (p. 1029): “ … leg 1 with prefemoral … spurs. … Ultimate legs with male secondary sexual characters, such as swollen structure of tarsus 1 and dorsomedian projection [= corner spine] on prefemur ” and (p. 1032): “ The original description of R. calcarata also indicated characteristics of Alluropus, such as … and a prefemoral process on the ultimate legs that has not been reported in most South-East Asian Rhysida such as R. longipes, R. singaporiensis, R. immarginata and R. monticola ”. Based on re-investigation of ZMMU’s material of both Rhysida (see Remarks above) and Alluropus calcaratus (Pocock, 1891) — an adult female ca 30 mm long from Central Laos (Rc 7161), mentioned by Schileyko (2007: 83) as Rhysida calcarata Pocock, 1891 — we confirm these characters as diagnostic for Alluropus. None of the re-studied specimens of Rhysida (from either South-East Asia or the Neotropics, see above) have a prefemoral spur on leg 1 or a corner spine on the ultimate prefemur (Fig. 107). The re-studied specimen of Alluropus calcaratus has a coxopleural process of medium length with apical and subapical + lateral (or posterior coxopleural?) spines (i. e. as in the corresponding pictures of Siriwut et al. 2018), relatively short ultimate legs, the prefemur with spines and a very characteristic comb-like corner spine (figs 22 G, 22 H of Siriwut et al. 2018). These characters are virtually identical to those of females of A. calcaratus as presented in Siriwut et al. (2018).

Type species. Alluropus demangei Silvestri, 1911 (by monotypy). This species was synonymized with A. calcaratus (Pocock, 1891) (former Rhysida calcarata) by Siriwut et al. (2018: 1029).

Export occurrence data

Darwin Core Archive (ZIP)

CLASSIFICATION

Taxonomic Classification Tree

AnimaliaArthropodaChilopodaScolopendromorphaScolopendridaeAlluropus

Alluropus

MULTIMEDIA

Media Files(2)

FIGURES 102–107. Ethmostigmus rubripes spinosus (Newport, 1845); Juv. Rc 7174 102 forcipular segment ventrally; Ethmostigmus rubripes platycephalus (Newport, 1845); Ad. Rc 7514 103 left pleuron of LBS 3 laterally; Ad. Rc 7513 104 LBS 21 ventrally; Sad. СDT 105 coxopleural processes + prefemora of ultimate legs ventrally; Rhysida longipes (Newport, 1845); Ad. Rc 6683 106 anterior margin of forcipular coxosternite ventrally 107 coxopleural processes, legs 20 + ultimate legs laterally; (ap)—apical spine, (bs)—basal suture of forcipular tooth-plate, (cp)—coxopleural process, (csp)—corner spine of ultimate prefemur, (cx)—coxopleuron, (im)—intersclerite membrane, (lc)—lateral spines of coxopleural process, (pf)—ultimate prefemur, (pr)—trochantero-prefemoral process, (pts)—ultimate pretarsus, (rpf)—abnormally small (regenerated) right ultimate prefemur, (rpr)—rudiment of trochantero-prefemoral process, (s)—open spiracle without atrium, (scs)— spine at place of corner spine of ultimate prefemur, (su)—spines of ultimate prefemur, (t1)—ultimate tarsus 1, (tp)—forcipular tooth-plates, (ust)—ultimate sternite.

Imageimage/png© Schileyko, Arkady A.;Vahtera, Varpu;Edgecombe, Gregory D.Schileyko, Arkady A.;Vahtera, Varpu;Edgecombe, Gregory D.

FIGURES 108–112. Rhysida longipes (Newport, 1845); Ad. Rc 7003 108 left pleuron of LBS 3 laterally; Ad, Rc 7003 109 LBS 21 ventrally; Alluropus calcaratus (Pocock, 1891) (photos by Warut Siriwut); Ad. male CUMZ 00470 110 LBS 20, 21 + ultimate legs dorso-laterally; Ad. female CUMZ 00501 111 head, forcipular segment and LBS 1, 2 ventrally; Ad. female CUMZ 00501 112 LBS 20, 21 + prefemora of ultimate legs ventrally; (20)—leg 20, (ap)—apical + ventral subapical spines of coxopleural process, (cp)—coxopleural process, (csp)—corner spine of ultimate prefemur, (dd)—male’s dorsodistal projection of ultimate tarsus 1, (im)—intersclerite membrane, (lc)—lateral spine of coxopleural process, (pfs)—prefemoral spur of leg 1, (pr)—trochantero-prefemural process, (pts)—pretarsus, (s)—spiracle, (sh)— spiracle hump, (su)—spines of ultimate prefemur, (t1)—male’s enlarged ultimate tarsus 1, (t2)—male’s slim ultimate tarsus 2, (tp)—forcipular tooth-plates, (ust)—ultimate sternite, (ut)—ultimate tergite.

Imageimage/png© Schileyko, Arkady A.;Vahtera, Varpu;Edgecombe, Gregory D.Schileyko, Arkady A.;Vahtera, Varpu;Edgecombe, Gregory D.

IMAGES

Gallery(2)

See Gallery →

Descriptions(6)

Taxonomic Classification Tree

Media Files(2)

Gallery(2)

Occurrences with images