Palindroma avonova, Rudy Jocqué & Arnaud Henrard, 2015
treatment provided by
gen. et sp. nov
Palindroma avonova gen. et sp. nov.
The male of P. avonova gen. et sp. nov. is easily recognized by the characters of the palp: the swollen patella, the thick RTA, the ridged tegulum and the sickle shaped embolus. The female has a characteristic epigyne with longitudinal central depression separated from the posterior margin by a rectangular plate.
The species name is an arbitrary combination of letters forming a noun in apposition and containing ‘nova’ (new) as the genus as well as the species are new.
TANZANIA: 1 ♂, together with holotype ( MRAC 244092) GoogleMaps ; 2 ♂♂, 1 ♀, together with holotype ( ZMUC) GoogleMaps ; 5 ♂♂, 1 ♀, Muheza district, Marimba Forest Reserve , 5°01’ S, 38°41’ E, no date, Frontier Tanzania ( ZMUC) GoogleMaps .
TANZANIA: 1 ♀, Coastal Region, Kazimzumbwi Forest Reserve , 6°57’ S, 39°3’ E, Jan.–Feb. 1991, Frontier Tanzania ( ZMUC) GoogleMaps ; 2 ♀♀, as previous GoogleMaps ; 1 ♂, as previous GoogleMaps ; 1 ♀, Pugu Forest Reserve , 9°59’ S, 39°7’ E, 25 Apr. 1981, leaf litter, K.M. Howell ( MRAC 159097) GoogleMaps .
Total length 7.60; carapace 3.83 long, 2.63 wide, narrowed to 1.28 in eye region.
Colour: Carapace dark brown with few silvery setae ( Fig. 8 View Fig. 8 A – B); chelicerae, sternum and legs medium brown; Mt I, II with white hairs. Abdomen: dorsum with white setae, denser in front and on posterior white bar; three pairs of white spots, one pair of adjacent white bars and a white bar in front of spinnerets; four apodemes well developed; sides dark grey; venter pale grey, well separated from sides by oblique white band on either side; sclerotized in front of epigastric fold; four rows of apodemes; spinnerets yellowish brown.
Eyes: AME: 0.10; ALE: 0.14; ALE-ALE: 0.15; AME-ALE: 0.13; PME: 0.08; PLE: 0.13; PME-PME: 0.12; PME-PLE: 0.30. Clypeus 0.39 or 2.8 times width of ALE.
Chilum double, each sclerite 0.13 high, 0.20 wide; no setae. Chelicerae with distomesal membranous swelling. Sternum shield-shaped, 1.42 long, 1.28 wide.
Legs: anterior tarsi slightly longer than metatarsi.
* 3 long, slender setae + 2 or 3 short, thick, distal setae Leg measurements
Male palp ( Figs 9 View Fig. 9 A – B, 10 A – C): patella large, swollen; tibia with short, rounded dorsal process; RTA strongly sclerotized, short, thick, with truncated tip; cymbium with several spines in distal half; with basal swellings near dorsal tibial process and RTA; tegulum with longitudinal ventral ridge ending medially in poorly developed knob; embolus short, sickle shaped; MA strongly sclerotized, conical, pointing backward; subtegulum large, strongly sclerotized.
Female (paratype from Marimba Forest)
Total length 8.02; carapace 3.76 long, 2.63 wide, narrowed to 1.63 in eye region.
Colour: carapace dark brown without silvery setae ( Fig. 8 View Fig. 8 C – D); chelicerae, sternum and legs medium brown without white setae; abdomen: pattern as in male but without white setae and not sclerotized in front of epigastric fold but for epigyne. Further as in male.
Carapace: finely reticulated. Clypeus with dispersed setae.
Eyes: AME: 0.18; ALE: 0.20; ALE-ALE: 0.18; AME-ALE: 0.20; PME: 0.13; PLE: 0.16; PME-PME: 0.10; PME-PLE: 0.31. Clypeus 0.43 or 2.2 times width of ALE.
Chilum double, each sclerite 0.10 high, 0.26 wide; no setae. Sternum shield-shaped, 1.42 times as long as wide.
* 2 long, slender setae + 1 or 3 short, thick, distal setae
Palp: claw with three teeth, turned inward over 45°. Tarsus provided with strong retrolateral spines.
Epigyne ( Figs 9 View Fig. 9 C, 10 D): dark, fairly large central depression longitudinal, separated from posterior margin by transverse rectangular plate.
Known from forest in Muheza District in Tanzania ( Fig. 16 View Fig. 16 ).
Denmark, Kobenhavn [= Copenhagen], University of Copenhagen, Zoological Museum
USA, Florida, Gainesville, University of Florida, Florida Museum of Natural History, Allyn Museum
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