Thyropygus bifurcus

Key to species of the T. bifurcus View in CoL subgroup

1 Telopodite with a single femoral spine ......................................................................................................................... 2

1* Telopodite with a double femoral spine........................................................................................................................ 3

2 Lateral process of anterior coxal fold ( alp) without an apical crest; mesal process of anterior coxal fold ( amp) shorter than and as broad as alp, directed distad; femoral spine ( fe) very long and slender.......... Thyropygus casjeekeli View in CoL n. sp.

2* Lateral process of anterior coxal fold ( alp), with a sharp crest on the posterior surface near the tip ( Fig. 5 View FIGURE 5 C, arrow); mesal process of anterior coxal fold ( amp) almost as long as alp, straight, directed distad; femoral spine ( fe) very long, slender, with an additional lamella at base ( Fig 5 View FIGURE 5 D, arrow)................................ Thyropygus quadricuspis View in CoL n. sp.

3 Lateral process of anterior coxal fold ( alp) broader, terminating in a very short external spine and a very long internal one; mesal process of anterior coxal fold ( amp) as long as alp; first femoral spine ( fe 1) very short, pointed; second femoral spine ( fe 2) very long, as long as tibial spine ( ti); an additional lamella at both side of base of fe 2......... ............................................................................................................................... Thyropygus richardhoffmani View in CoL n. sp.

3* Lateral process of anterior coxal fold ( alp) slender, regularly curved, sickle-shaped ................................................. 4

4 Mesal margin of lateral process of anterior coxal fold ( alp) simple, without a caudad spine or crest; mesal process of anterior coxal fold ( amp) much shorter than lateral process ( alp), curved, pointed ............................................................................................................................................................................... Thyropygus enghoffi ( Demange, 1989) View in CoL

4* Mesal margin of lateral process of anterior coxal fold ( alp) with a caudad small spine or crest ................................. 5

5 Mesal margin of lateral process of anterior coxal fold ( alp) with a small caudad crest; mesal process of anterior coxal fold ( amp) slightly shorter than alp, slightly sigmoid, pointed......................... Thyropygus bifurcus ( Demange, 1986) View in CoL

5* Mesal margin of lateral process of anterior coxal fold ( alp) with a short curved caudad spine; mesal process of anterior coxal fold ( amp) as long as alp, straight..................................................................... Thyropygus demangei View in CoL n. sp.