Crinopseudoa, Jocqué & Bosselaers, 2011
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publication ID |
https://doi.org/ 10.1111/j.1096-3642.2010.00679.x |
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DOI |
https://doi.org/10.5281/zenodo.10545750 |
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persistent identifier |
https://treatment.plazi.org/id/EC17CE33-D251-FF94-57E5-FA1B0E28FE4C |
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treatment provided by |
Valdenar |
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scientific name |
Crinopseudoa |
| status |
gen. nov. |
CRINOPSEUDOA View in CoL GEN. NOV.
Type species: Crinopseudoa bong sp. nov.
Diagnosis: Members of Crinopseudoa are easily recognized by the diffuse pattern of small warts on the carapace only, by the smooth sternum that is as long as wide, by the presence of two ve spine pairs on mt IV, by the small, subtriangular MA of the male palp that is fused to the tegulum, and by the posterior, lobate ducts of the vulva.
Etymology: Crinopseudoa is derived from the Greek KRINW, to distinguish, to select, and YEUdώ, to cheat, to be in error. The name was coined because at the start of this investigation, it was not immediately realised that the many species available for study would constitute two monophyletic sister clades.
Description: Medium size spiders (4.00–6.15). Carapace covered with a diffuse pattern of tiny, setabearing warts ( Figs 45A–H View Figure 45 , 46A, D View Figure 46 ), exhibiting some radial striae ( Fig. 43A, C, E View Figure 43 ).
Carapace wide (width = ±0.92 l); strongly narrowed in front to ±0.55 maximum width in cephalic part ( Figs 43A, C, E View Figure 43 , 44A View Figure 44 ). Cephalic region produced into a blunt snout between AME. Cervical grooves weak; radiating striae slightly indicated ( Fig. 43A, C, E View Figure 43 ). Profile fairly flat with highest point between PME ( Fig. 44B View Figure 44 ) and fovea that is deep.
Colour: yellowish to orange brown; abdomen greyish with yellowish brown scuta ( Fig. 43A–E View Figure 43 ).
Eyes ( Figs 43A, E View Figure 43 , 44A, B View Figure 44 ) circular, in two rows that are both procurved as seen from front as well as from above. AME the largest, up to twice the diameter of the remainder ( Fig. 43E View Figure 43 ), which are subequal; lateral eyes close together on a tubercle; AME somewhat less than one diameter apart; PME about 1.5¥ diameter apart. AME about half of AME diameter from ALE, PME slightly more than their diameter from PLE. MOQ trapezoidal; wider in front and slightly wider than long. Clypeus concave ( Fig. 44B View Figure 44 ), with typical corinnid central bulge, twice as high as diameter of ALE.
Chilum single, smooth, shape variable: ranging from a narrow triangle about twice wider than high to a wide triangle, ± four times wider than high.
Chelicerae massive ( Fig. 46G–I View Figure 46 ), with strong condyle; promargin with dense cluster of peculiarly modified setae ( Fig. 46I View Figure 46 ) and three teeth, retromargin with two teeth. Endites ( Figs 43D View Figure 43 , 44C View Figure 44 ) converging, bulging, swollen in basal half, with scopula on distal membranous area. Labium roughly rectangular, constricted near base. Sternum ( Figs 43D View Figure 43 , 44C View Figure 44 ) rebordered, shield-shaped, as wide as long in most species, with intercoxal triangular extensions and fused with smaller precoxal triangles; areas in front of coxae bulging. Pleural bars yellowish brown, weakly sclerotized, without warts, fused to a single, thin strip, with short triangular extensions between coxae. Leg formula 2413. Retrocoxal hymen conspicuous, hemispherical to subconical, pale whitish, semitransparent. Trochanters not notched. Patellar indentation long and narrow. Tarsi widened towards tip; two claws with few tiny teeth, claw tufts, no scopula. Spination: fe I with one or two pl spines, no rlv spines in females and one in males; fe II spineless; ti I and II with six to seven ve pairs of long spines, mt I and II with three or four ve pairs. Fe II and IV, Pa and ta spineless. Legs III and IV with several lateral and ve spines on ti and mt. Mt III and IV with vt preening brush ( Fig. 46E View Figure 46 ). Tarsal organ in the shape of a keyhole ( Fig. 46F View Figure 46 ). Bothria with U-shaped ridge and sunken plate ( Fig. 46B, C View Figure 46 ). Male abdomen oval with a small (<65% of do surface area), sometimes weak and diffuse do scutum associated with a lanceolate pl sigillum on either side. Epigastric sclerite present in both sexes, accompanied by two crescent-shaped sclerites behind the booklung openings (also found in Pronophaea , Procopius , and in Lamponidae !); completely surrounding petiolus in males, surrounding petiolus over 240° and separated by two gaps from a trapezoidal do sclerite in females. LOP consisting of two subrectangular sclerites connected by a flexible membrane, posterior part posteriorly notched. PSP surrounding ve half of petiolus, trapezoidal, posteriorly notched, and ventrally keeled. Spinnerets ( Fig. 47A–F View Figure 47 ): six, fairly long; ALS well separated, conical with short distal segment; PMS and PLS cylindrical, respectively, with three and two cylindrical gland spigots in females.
Genitalia fairly variable; male palpal tibia with RTA as well as a PTA (e.g. Figs 46J View Figure 46 , 49B View Figure 49 ); RTA often with characteristic shape (e.g. Fig. 46K, L View Figure 46 ). Cymbium with dense distal patch of chemosensitive setae; posterior part of tegulum strongly bulging (except in C. leiothorax ). Embolus mostly short and sickle-shaped, originating in centre or on anterior part of tegulum. MA mostly strongly developed. FC weakly developed or absent. The epigyne often with one or more transverse grooves; internal structure often with posterior, lobate ducts, visible in transparency in dorsal view. Female palp with more or less numerous femoral spines and typical club-shaped tarsus provided with dorsolateral patch of chemosensitive setae.
Natural history: Very little is known about the habits of the spiders belonging to Crinopseudoa . They are known from the wet forests in Liberia and Guinea. One species, C. paucigranulata , was collected in montane grassland on Mt. Cameroon and is exceptional in this clade of forest inhabiting species.
Distribution: The presently known distribution area of Crinopseudoa is the western African forest block from Guinee Conakry to Cameroon.
Affinities: As the sister genus of Pseudocorinna , the genus Crinopseudoa is equally hard to place and is best left as incertae sedis within Corinnidae .
| PMS |
Peabody Essex Museum |
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