Cteniogaster lampropus, Jan Bosselaers & Rudy Jocque, 2013

Jan Bosselaers & Rudy Jocque, 2013, Studies in Liocranidae (Araneae): a new afrotropical genus featuring a synapomorphy for the Cybaeodinae, European Journal of Taxonomy 40, pp. 1-49 : 24-25

Cteniogaster lampropus sp. nov.

urn:lsid:zoobank.org:act:54BD025D-0757-4750-ACEB-403E5B47E984

Figs 3H-J , 4E-F, 12L, 14; Appendix 1I

Diagnosis

Cteniogaster lampropus sp. nov. differs from all other Cteniogaster gen. nov. species by the relatively large PME, the strongly iridescent legs and the vulva with widely separated piriform posterior ST1 with internal spikes and more median and dorsally situated, broad, longitudinally oriented ST2.

Etymology

The species name is a noun in apposition and is derived from the Greek LaMpRoς, shining, and poUς, leg, referring to the strongly iridescent legs.

Type material

Holotype

♀: TANZANIA, Tanga, W. Usambara Mts., Mazumbai Forest , 4°49’S 38°29.5’E, 12-20 Nov. 1995, 1800-1900 m asl, Griswold C., Scharff N. & Ubick D. ( ZMUC) .

Description

Male

Unknown.

Female (holotype)

TOTAL LENGTH. 2.42. Carapace length 1.18, width 0.97, brown, with grey radiating striae and dark grey border ( Fig. 3H-I ). Fovea pronounced, length 0.09, anterior end 0.83 from front end of carapace. MOQ length 0.13, anterior width 0.11, posterior width 0.16. AER width 0.29, PER width 0.37. AME 0.4 of ALE diameter. PLE 0.8 of ALE diameter, separated from them by PLE diameter. PME circular, not reduced, 2/3 of AME diameter. Both eye rows recurved from above ( Fig. 3H ). Clypeus vertical, equal to AME diameter. Chilum brown, small. Sternum yellow with a darker brown border ( Fig. 3J ), length 0.74, width 0.68. PCT pale, subtriangular.

ABDOMEN. Dark greenish grey dorsally, covered with greenish iridescent silky hairs. Ventral side of abdomen creamy brown, darker around spinnerets ( Fig. 3J ). ALS separated by half their diameter, PLS short and stout, subcylindrical, separated by 1.5 times their diameter. Legs orange, femora olive grey ( Fig. 3H ), iridescent with a green and blue lustre. Retrocoxal hymen subglobular, hyaline. Trochanter notch more pronounced in legs III and IV. Sparse ve terminal preening brushes on mt III and IV. Tarsus IV slightly bent. Leg spination as in Appendix 1I.

LEG MEASUREMENTS:

	fe	pa	ti	mt	ta	Total
I	0.85	0.34	0.76	0.53	0.53	3.01
II	0.76	0.34	0.63	0.53	0.50	2.76
III	0.76	0.29	0.53	0.58	0.50	2.66
IV	1.03	0.39	0.84	0.92	0.63	3.81

EPIGYNE. With a narrow anterior hood-like structure, partly transparent, showing superimposed lateral ST1 and ST2 ( Fig. 12L). Vulva with widely separated piriform posterior ST1 with internal spikes and more median and dorsally situated, broad, longitudinally oriented ST2 with an anterior, porous glandular structure ( Fig. 4E-F ).

Distribution

Tanzania, West Usambara mountains, 1800-1900 m asl.

Figures

Fig. 3. A-B. Cteniogaster sangarawe sp. nov. A. ♀, habitus, ventral view. B. Idem, dorsal view. C-D. Cteniogaster taxorchis sp. nov. C. ♀, prosoma, dorsal view. D. Idem, ventral view. E-G. Cteniogaster nana sp. nov. E. Ƌ, habitus, ventral view. F. Idem, abdomen, ventral view. G. Idem, habitus, dorsal view. H-J. Cteniogaster lampropus sp. nov. H. ♀, prosoma, dorsal view. I. Idem, habitus, dorsal view. J. Idem, ventral view. Scale bars: A-D, F-J = 0.5 mm; E = 0.2 mm.

Fig. 4. Female genitalia, ventral view. A, C, E: cleared in methyl salicylate. A-B. Cteniogaster toxarchus gen. et sp. nov. C-D. Cteniogaster hexomma sp. nov. E-F. Cteniogaster lampropus sp. nov. Scale bars = 0.1 mm.