Spirostreptus opinatus

Pimvichai, Piyatida, Enghoff, Henrik & Panha, Somsak, 2009, A revision of the Thyropygus allevatus group. Part 1: the T. opinatus subgroup (Diplopoda: Spirostreptida: Harpagophoridae), Zootaxa 2016, pp. 17-50 : 26-27

publication ID

https://doi.org/10.5281/zenodo.185971

DOI

https://doi.org/10.5281/zenodo.6218616

persistent identifier

https://treatment.plazi.org/id/1644D538-F44B-FFC8-FF49-F97A9AFDFAE2

treatment provided by

Plazi

scientific name

Spirostreptus opinatus
status

 

Key to species of the T. opinatus subgroup

1 Spatulate lobe ( sl) distally drawn out into one (rarely two) sharp dark brown spine(s).............................................. 2

1* Spatulate lobe ( sl) distally expanded and/or rounded, spoonlike, without a spine ...................................................... 6

2 Spatulate lobe ( sl) terminating in two sharp brown spines, the outer spine slightly smaller and shorter than the inner one; lateral process of anterior coxal fold ( alp) slender, slightly curving mesad; mesal process of anterior coxal fold ( amp) almost as long as alp, flattened........................................................................ Thyropygus bispinispatula View in CoL n. sp.

2* Spatulate lobe ( sl) terminating in a single sharp dark brown spine .............................................................................. 3

3 Telopodite distally to fe with a large, round lobe ( lo) projecting distolaterally............................................................ 4

3* Telopodite without a lobe distal to fe; lateral process of anterior coxal fold ( alp) long, slender, regularly curved, tip

close to tip of opposite alp, the two together forming a circle; mesal process of anterior coxal fold ( amp) straight, shorter than alp; femoral spine ( fe) directed distad, pointed.................................................. Thyropygus erectus View in CoL n. sp. 4 Lateral process of anterior coxal fold ( alp) very slender, regularly curved, simple, tip close to tip of the opposite side, the two together forming a circle; mesal process of posterior coxal fold ( pmp): strongly developed along anterior-posterior axis................................................................................ Thyropygus floweri ( Demange, 1961) View in CoL n. comb.

4* Lateral process of anterior coxal fold ( alp) different, broader and/or with several apical denticles ........................... 5

5 Lateral process of anterior coxal fold ( alp) broad, apically gradually narrowed; mesal process of anterior coxal fold ( amp) almost as long as lateral process ( alp), slender, straight, terminally slightly curved, pointed ........................................................................................................................................... Thyropygus opinatus ( Karsch, 1881) View in CoL n. comb.

5* Lateral process of anterior coxal fold ( alp) apically bent abruptly mesad, tip with serrate margins; mesal process of anterior coxal fold ( amp) much shorter than lateral process ( alp), directed meso-distad, simple, pointed; mesal process of posterior coxal fold ( pmp): strongly developed along anterior-posterior axis........................................................................................................................................................... Thyropygus implicatus ( Demange, 1961) View in CoL n. comb.

6 Lateral process of anterior coxal fold ( alp) broad, mesal margin concave, tip with serrate margins, cockscomb-like; mesal process of anterior coxal fold ( amp) much shorter than lateral process ( alp), directed meso-distad, simple, pointed; an additional spine-like process ( aip) between alp and amp ............................. Thyropygus cristagalli View in CoL n. sp.

6* Lateral process of anterior coxal fold ( alp) slender, regularly curved, no additional process between lateral ( alp) and mesal ( amp) ones ......................................................................................................................................................... 7

7 Lateral process of anterior coxal fold ( alp) apically abruptly truncate.................................... Thyropygus bearti View in CoL n. sp.

7* Lateral process of anterior coxal fold ( alp) apically pointed........................................................................................ 8

8 Mesal process of anterior coxal fold ( amp) very small, telopodite distally to fe with a small round lobe ( lo) projecting distolaterally........................................................................................................................ Thyropygus loxia View in CoL n. sp.

8* Mesal process of anterior coxal fold ( amp) relatively long.......................................................................................... 9

9 Mesal process of anterior coxal fold ( amp) much shorter than lateral process ( alp), directed obliquely disto-mesad, slender, straight.................................................................................................................... Thyropygus chelatus View in CoL n. sp.

9* Mesal process of anterior coxal fold ( amp) directed distad, thicker, straight or slightly sigmoid ............................. 10

10 Mesal process of anterior coxal fold ( amp) almost as long as lateral process ( alp), slightly sigmoid, pointed; mesal process of posterior coxal fold ( pmp) directed distolaterad..................................... Thyropygus brachyacanthus View in CoL n. sp.

10* Mesal process of anterior coxal fold ( amp) longer than lateral process ( alp), directed distad, parallel with opposite process......................................................................................................................................................................... 11

11 Lateral process of anterior coxal fold ( alp) apically with a crest extending caudad and ending in a small spine; mesal process of anterior coxal fold ( amp) apically irregularly tuberculate; telopodite distally without a rounded lobe ( lo); femoral spine ( fe) short; spatulate lobe ( sl) distally rounded, with smooth edges..................................................................................................................................................................... Thyropygus inflexus ( Demange, 1989) View in CoL n. comb.

11* Lateral process of anterior coxal fold ( alp) apically without a crest; mesal process of anterior coxal fold ( amp) apically sharp; telopodite distally with a rounded lobe ( lo); femoral spine ( fe) long; margins of spatulate lobe ( sl) terminally meeting in a distinct angle.......................................................................................... Thyropygus bispinus View in CoL n. sp.

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF