Coryssocnemis simla, HUBER, 2000

HUBER, BERNHARD A., 2000, New World Pholcid Spiders (Araneae: Pholcidae): A Revision At Generic Level, Bulletin of the American Museum of Natural History 2000 (254), pp. 1-348 : 248-250

Coryssocnemis simla , new species Figures 35 , 110 , 980–992

TYPES: Male holotype, 53 4♀ paratypes, and 6 juveniles, from Simla , Arima Valley, Trinidad ; Apr. 19, 1964 (A. M. Chickering), in AMNH .

ETYMOLOGY: Named for the type locality. The specific name is a noun in apposition.

DIAGNOSIS: Distinguished from congeners by the position and number of sclerotized cones frontally on the male chelicerae (fig. 987; in C. callaica they form a pair of arches; see Huber, 1997b), and by the two slender bulbal apophyses (fig. 990; in C. callaica they are much shorter; see Huber, 1997b); from C. callaica and C. guatopo also by the flat epigynum (fig. 991; in C. callaica the epigynum has a pair of distinctive frontal protrusions: fig. 993; in C. guatopo the epigynum has a median indentation: fig. 995).

MALE (holotype): Total length 4.4, carapace width 1.6; leg 1: 37.7 (8.8+0.7 +9.1+16.8+2.3), tibia 2: 5.7, tibia 3: 4.7, tibia 4: 5.2; tibia 1 l/d: 68. Habitus as in fig. 980; carapace ochre to light brown, with dark brown pattern (fig. 983), ocular area brown with light median band; distance PME-ALE about 80% of PME diameter. Clypeus brown (fig. 982), sternum ochre with dark brown median band (fig. 986); chelicerae brown with several cone-shaped, sclerotized apophyses, and pair of upward-bent apophyses distally (figs. 35, 987: arrow). Palps as in figs. 984–985, coxa with rounded but distinct retrolateral apophysis, femur with conspicuous retrolateral apophysis proximally, ventral apophysis distally (fig. 989), procursus with membranous lamella ventrally, long spine dorsally (fig. 988), bulb with pair of apophyses and accompanying transparent protru- sion (fig. 990). Legs brown, femora and tibiae with light tips; femora 2 thicker than others; femora 1 and 2 with two rows of spines ventrally (fig. 981); legs without curved and vertical hairs; retrolateral trichobothrium of tibia 1 at 2%; tarsus 1 with over 30 pseudosegments. Opisthosoma greenish-gray, with darker greenish spots arranged in stripes (fig. 980); genital plate dark brown, black band behind genital plate halfway to spinnerets.

VARIATION: Tibia 1 in 10 males (type locality): 8.7–10.9 (x¯ = 9.7).

FEMALE (type locality): Total length (N = 10) 2.4–3.3; tibia 1 (N = 10) 5.5–6.4 (x¯ = 5.9). In general very similar to male but femora without spines. Epigynum brown to dark brown, simple flat plate (fig. 991), dorsal view as in fig. 992, pore plates oval.

DISTRIBUTION: Known from several localities on Trinidad.

MATERIAL EXAMINED: TRINIDAD: St. George Co.: Arima Valley, Simla , Apr. 16– 28, 1964 (10 vials) (A. M. Chickering), 373 38♀ many juveniles in AMNH ; same locality, Feb. 8, 1965, and Feb. 24, 1966 (2 vials) (J. Rozen), 43 4♀ 1 juvenile in AMNH ; 4 mi N Arima, Apr. 18–May 4, 1967 (C. T. Collins), 2♀ in AMNH ; Arima, Asa Wright Nat. Cent. , ‘‘at night ex small excavation in embankment roadside, in web,’’ July 12, 1979 (L. N. Sorkin & B. Faber), 13 in AMNH ; Arima, Simla Research Station , Feb. 4, 1984 (J. Coddington), 13 1♀ in USNM ; Arima, Spring Hill ( AWNC), ‘‘web, roadside mud embankment with depression,’’ July 22, 1979 (L. N. Sorkin), 13 1♀ in AMNH ; Arima, Andrews Trace (off Blanchisseuse Rd ), ‘‘leaf litter, web,’’ July 16, 1979 (L. N. Sorkin), 13 2♀ in AMNH ; Arima, Guanapo Valley Rd, Guanapo Cave , cave wall, July 15, 1979 (L. N. Sorkin), 13 in AMNH ; Arima Valley , 800–1200 ft elev., Feb. 10–22, 1964 (2 vials) (J. Rozen & P. Wygodzinski), 53 5♀ in AMNH ; Blanchisseuse , beach area, Apr. 22, 1964 (A. M. Chickering), 23 2♀ in AMNH ; St. Patrick Co.: navy base, Sept. 1944, Apr. 1945 (2 vials) (R. Ingle), 13 3♀ some juveniles, in AMNH .

Figures

Figs. 30–35. Sexual modifications on male chelicerae. 30. Galapa baerti (Gertsch), cheliceral fang with basal apophysis (arrow). 31. Chibchea araona, n. gen., n. sp., cheliceral fang with tiny projections (arrow; cf. fig. 666). 32. Blancoa piacoa, n. gen., n. sp., cheliceral fang with basal apophysis (arrow). 33. Canaima arima (Gertsch), cheliceral apophysis and projections. 34. Calapnita vermiformis Simon, scales on distal cheliceral apophysis. 35. Coryssocnemis simla, n. sp., upward-bent apophysis. Scale lines: 20 µm (30–33, 35), 3 µm (34).

Figs. 105–112. Miscellaneous structures. 105. Leptopholcus dalei (Petrunkevitch), modified hair at tip of male palpal trochanter apophysis. 106. Micropholcus fauroti (Simon), modified hair at tip of male palpal trochanter apophysis. 107. Metagonia maldonado, n. sp., tip of clypeal apophysis. 108. Modisimus dominical Huber, male femur, showing vertical (and ‘‘normal’’) hairs. 109. Ibotyporanga naideae Mello- Leitão, male tibia, showing vertical (and ‘‘normal’’) hairs. 110. Coryssocnemis simla, n. sp., spine on male femur 2. 111–112. Modisimus dominical Huber, pseudotrichia on inner surface of male palpal coxae (endites). Scale lines: 100 µm (108–109), 20 µm (107, 110), 5 µm (105–106, 111–112).

Figs. 980–985. Coryssocnemis simla, n. sp., male. 980. Habitus, lateral view. 981. Ventral side of femur 1 at ~ 1/3 of length, with two rows of spines. 982 983. Prosoma, frontal and dorsal views. 984. Right palp, retrolateral view. 985. Right palp, prolateral view. Scale lines: 1.0 mm (980, 982, 983), 0.5 mm (984–985), 0.1 mm (981).

Figs. 986–992. Coryssocnemis simla, n. sp. 986. Male prosoma, ventral view. 987. Male chelicerae, frontal view (arrow points to upward-bent apophysis, cf. fig. 35). 988. Right procursus tip, retrolateral view. 989. Male right palpal femur, retrolateral view. 990. Embolar division of right bulb, prolateral view. 991. Epigynum, ventral view. 992. Epigynum, dorsal view. Scale lines: 0.5 mm (986), 0.2 mm (987–992).