Crossopriza surobi, Huber, 2022

Huber, Bernhard A., 2022, Revisions of Holocnemus and Crossopriza: the spotted-leg clade of Smeringopinae (Araneae, Pholcidae), European Journal of Taxonomy 795 (1), pp. 1-241 : 204-208

publication ID

https://doi.org/ 10.5852/ejt.2022.795.1663

publication LSID

lsid:zoobank.org:pub:7394D45E-46E1-453C-BF7E-1FE1B2CEBB0A

DOI

https://doi.org/10.5281/zenodo.6317899

persistent identifier

https://treatment.plazi.org/id/6D67AB05-2114-445F-9217-35ED08B6B68F

taxon LSID

lsid:zoobank.org:act:6D67AB05-2114-445F-9217-35ED08B6B68F

treatment provided by

Felipe

scientific name

Crossopriza surobi
status

sp. nov.

Crossopriza surobi View in CoL sp. nov.

urn:lsid:zoobank.org:act:6D67AB05-2114-445F-9217-35ED08B6B68F

Figs 353A View Fig , 806–822 View Figs 806–808 View Figs 809–817 View Figs 818–822 , 841–853 View Figs 841–848 View Figs 849–857. 849–853

Diagnosis

Distinguished from known congeners by details of male palp ( Figs 809–811 View Figs 809–817 ; procursus ventral sclerite with strong retrolateral branch; procursus tip with strong dorsal process; distal bulbal sclerite with distinctive series of apophyses on prolateral side); from the similar C. lyoni (identical male chelicerae) also by longer epigynum and less elongated pore plates ( Figs 816–819 View Figs 809–817 View Figs 818–822 ); from the similar C. maculipes also by male chelicerae ( Fig. 815 View Figs 809–817 ; lateral apophyses in lateral view long and pointed) and by female internal genitalia ( Fig. 817 View Figs 809–817 ; pore plates farther apart).

Etymology

The species name refers to the type locality; noun in apposition.

Type material

Holotype AFGHANISTAN – Kabul • ♂; SE of Surobi / Sarobi (“Sorubay”); 34.50° N, 69.87° E (see Remark below); 800 m a.s.l.; 6 Aug. 1975; A. Senglet leg.; MHNG. GoogleMaps

Remark

The label coordinates (34°30’ N, 69°52’ E) are actually slightly outside of Kabul Province in Laghman Province. The actual collecting site might thus be slightly further west or northwest.

Other material examined

AFGHANISTAN – Kabul • 8 ♂♂, 8 ♀♀ (partly used for SEM); same collection data as for holotype; MHNG GoogleMaps 1 ♂, 3 ♀♀, 1 juv.; E of Kabul; 34.57° N, 69.48° E; 4 Aug. 1975; A. Senglet leg.; MHNG GoogleMaps . – Wardak • 1 ♀; [between] Kabul [and] Shahabuddin ; 34.33° N, 68.85° E; 12 Aug. 1975; A. Senglet leg.; MHNG GoogleMaps 1 ♀; NNE of Ghazni; 33.75° N, 68.57° E; 12 Aug. 1975; A. Senglet leg.; MHNG GoogleMaps .

Description

Male (holotype)

MEASUREMENTS. Total length 4.2, carapace width 1.6. Distance PME–PME 100 µm; diameter PME 100 × 130 µm; distance PME–ALE 25 µm; diameter AME 90 µm; distance AME–AME 20 µm. Leg 1: 32.8 (9.2 + 0.6 + 8.9 + 11.9 + 2.2), tibia 2: 6.0, tibia 3: 4.3, tibia 4: 5.3; tibia 1 L/d: 64; femora 1–4 diameters: 0.22, 0.17, 0.17, 0.17.

COLOR (in ethanol). Carapace ochre-yellow, anteriorly in median pit light brown; sternum with many small brown spots partly arranged in radial marks; legs ochre-yellow, without darker rings, with black lines on femora and (few) on tibiae; abdomen pale gray, with few indistinct small dark marks dorsally and posteriorly above spinnerets; ventrally with broken dark band, with indistinct parallel longitudinal marks behind gonopore.

BODY. Habitus similar to C. tiwi sp. nov. (cf. Figs 393–394 View Figs 391–398 ). Ocular area slightly raised. Deep thoracic pit and pair of furrows diverging from pit toward posterior margin. Clypeus unmodified, only rim slightly more sclerotized than in female. Sternum wider than long (1.05/0.65), unmodified. Abdomen slightly elongated, dorso-posteriorly angular to conical. Gonopore with four epiandrous spigots ( Fig. 852 View Figs 849–857. 849–853 ).

CHELICERAE. As in Figs 814–815 View Figs 809–817 , with two pairs of frontal apophyses; proximal pair in lateral position, pointed and directed towards lateral; distal pair directed towards median, at tip with one large modified cone-shaped hair each ( Fig. 845 View Figs 841–848 ); distance between tips of modified hairs 30 µm; lateral stridulatory ridges distinct ( Fig. 841 View Figs 841–848 ; distances between ridges ~4 µm), clearly visible in dissecting microscope.

PALPS. As in Figs 806–808 View Figs 806–808 ; coxa with rounded retrolateral hump; trochanter barely modified; femur distally strongly widened, with rounded ventral protrusion, proximally with prolateral stridulatory pick ( Fig. 842 View Figs 841–848 ), without retrolateral transversal line, without retrolateral proximal process; femur-patella joints shifted toward prolateral side; tibia-tarsus joints slightly shifted toward retrolateral side; tarsus without macrotrichia; tarsal organ capsulate ( Fig. 849 View Figs 849–857. 849–853 ); procursus ( Figs 809–810 View Figs 809–817 ) straight, prolateral proximal hump set with many hairs, long dorsal hairs not curved, procursus tip with flat dorsal sclerite (wide in dorsal view), strong ventral sclerite with distinctive retrolateral branch ( Fig. 846 View Figs 841–848 ), and brush of short hair-like processes on retrolateral side ( Fig. 847 View Figs 841–848 ); genital bulb ( Figs 811–813 View Figs 809–817 ) with simple basal sclerite connected to distal (main) sclerite, sperm duct opening at basis of distal sclerite on prolateraldorsal side (arrow in Fig. 848 View Figs 841–848 ); distal sclerite with retrolateral ridge and distinctive set of prolateral apophyses and ridge.

LEGS. Femur 1 with single row of ~18 ventral spines; without curved hairs; few vertical hairs; retrolateral trichobothrium of tibia 1 at 4.5%; prolateral trichobothrium absent on tibia 1, present on other leg tibiae; tarsal pseudosegments not seen.

Male (variation)

Tibia 1 in seven males (incl. holotype): 7.8–8.9 (mean 8.4). Some males also with whitish internal marks on abdomen.

Female

In general similar to male but without spines on legs, without stridulatory files on chelicerae ( Fig. 843 View Figs 841–848 ), and with stridulatory organ consisting of pair of weakly sclerotized but distinct processes posteriorly on carapace and pair of small but distinct light brown plates anteriorly on abdomen. Tibia 1 in 12 females: 6.0–8.3 (mean 7.3). Epigynum as in Figs 819 View Figs 818–822 and 853 View Figs 849–857. 849–853 ; main epigynal plate wider than long, weakly protruding, sclerotized area at posterior margin widening towards lateral; with median ridge with shallow pair of opposing pockets close together (distance 30 µm); internal sclerotized arcs and median anterior internal sclerite visible in uncleared specimens; posterior plate light brown, short but wide. Internal genitalia ( Figs 816–817 View Figs 809–817 , 820–822 View Figs 818–822 ) with large angular pore plates, dorsal arc simple, ventral arc stronger, with median sclerite asymmetric; apparently antisymmetric (only two females cleared; ‘left’ and ‘right’ sided).

Distribution

Known from four localities in eastern Afghanistan (Kabul and Wardak Provinces) ( Fig. 353A View Fig ).

MHNG

Museum d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Crossopriza

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