Three new genera of tracheline sac spiders from southern Africa (Araneae: Corinnidae) Author Haddad, Charles R. Department of Zoology & Entomology, University of the Free State, P. O. Box 339, Bloemfontein, 9300 South Africa haddadcr.sci@ufs.ac.za Author Lyle, Robin text African Invertebrates 2008 2008-12-31 49 2 37 37 http://www.bioone.org/doi/abs/10.5733/afin.049.0204 journal article 10.5733/afin.049.0204 2305-2562 7661475 Genus Fuchibotulus gen. n. Etymology: The name is a combination of Fuchiba , a genus to which these spiders are related, and the Latin botulus (sausage), that refers to the sausage-shaped ST II of the female. Gender masculine. Type species: Fuchibotulus bicornis sp. n. Diagnosis: The carapace shape is evenly high and flat dorsally, with a sharp decline in the last fifth, and has a strongly tuberculate surface texture ( Figs 50, 51, 53, 54 ). The abdomen is notched anteriorly and has distinct dorsal sigillae with several pairs of tiny intermediate sclerites among them ( Figs 52, 55 ). The legs lack spines and ventral cusps, and are weakly scopulate. Males have a needle-like embolus originating prolaterally and curving retrolaterally around the tegulum, accompanied by a narrow membranous conductor ( Fig. 56 ); the palpal tibia has a larger single or bifid distal retrolateral apophysis and a small tooth-like proximal retrolateral dorsal apophysis ( Figs 57, 58 ); females have a narrow median epigynal hood and strongly twisted entrance ducts leading to long, sausage-shaped ST II, with corresponding twisted ducts leading from ST II to the small posterior ST I. Description: Small spiders, 2.80–3.55 mm long; carapace red, surface strongly granulate; abdomen pale grey with darker dorsal chevron marking; AER procurved, clypeus height equal to or slightly larger than AME diameter; AME slightly smaller than ALE, or eyes subequal; AME closer to ALE than to each other; PER strongly recurved; PME slightly larger than PLE, or eyes subequal; PME closer to each other than to PLE; chilum single, triangular, tapring distally; cheliceral promargin and retromargin with three teeth each, retromarginal teeth often on single base; labium trapezoidal, posterior width equal to length; endites straight laterally with distinct serrula; carapace broadly oval, widest at midpoint, eye region smoothly connected to thoracic region; carapace with slight depression anterior to fovea, posterior margin slightly concave; pleural bars isolated; sternum shield-shaped; precoxal triangles present; intercoxal sclerites present between coxae I and II, II and III, and III and IV; legs I slightly more strongly built than others in males; legs without spines or ventral cusps, metatarsi and tarsi weakly scopulate, metatarsi III and IV with terminal preening brush; leg formula 1423 ♂ , 4123 ♀; abdomen oval, distinctly notched anteriorly, tapering posteriorly; dorsal scutum absent in both sexes; dorsal sigilla present, with several intermediate sclerites between them; venter with paired tiny sclerites running from epigastric fold to spinnerets; small inframamillary sclerite present; male palp with subtriangular RTA, sometimes split distally, and small tooth-like dorsal apophysis; tegulum oval, embolus needle-like, originating prolaterally, directed retrolaterally along distal margin of tegulum, accompanied by narrow membranous conductor; female epigyne with narrow median epigynal hood, copulatory openings medially, entrance ducts strongly twisted, ST II long and sausage-like, directed posteriorly; duct leading from ST II to ST I twisted around entrance ducts; ST I small and oval, posterolaterally situated. Figs 50–55. General habitus of Fuchibotulus gen. n. species: (50–52) F. bicornis sp. n. , Fisherhaven: (50) male, (51) female, (52) male abdomen, indicating anterior notch (AN), intermediate sclerites (IS) and sigilla (SI); (53–55) F. kigelia sp. n. : (53) male, Magaliesberg, (54) female, Ndumo Game Reserve, (55) female abdomen. Scale bars = 1.0 mm. Species included: F. bicornis and F. kigelia (both new). Key to species of the genus Fuchibotulus gen. n. 1 Males .................................................................................................................... 2 – Females ................................................................................................................. 3 2 Embolus tip at 2/3 of cymbium width ( Fig. 61 ); distal retrolateral tibial apophysis distinctly bifid ( Fig. 62 ) .............................................................. F. bicornis sp. n. – Embolus tip at retrolateral margin of cymbium ( Fig. 67 ); distal retrolateral tibial apophysis triangular ( Fig. 68 ) ........................................................ F. kigelia sp. n. 3 ST II very elongate, extending posteriorly beyond anterior margin of copulatory openings ( Fig. 69 ) .......................................................................... F. kigelia sp. n. – ST II oval-elongate, not extending to anterior margin of copulatory openings...... ( Fig. 65 ) ...................................................................................... F. bicornis sp. n.