Lamponina isa, PLATNICK, 2000

PLATNICK, NORMAN I., 2000, A Relimitation And Revision Of The Australasian Ground Spider Family Lamponidae (Araneae: Gnaphosoidea), Bulletin of the American Museum of Natural History 2000 (245), pp. 1-328 : 135

Lamponina isa , new species Figures 311–314 ; Map 36

TYPES: Male holotype and female allotype from spinifex at an elevation of 310 m on Lake Moondarra Road, Mount Isa , Queensland, 208419S, 1398309E (Apr. 18, 1996; R. Raven), deposited in QMB ( S31252 ) .

ETYMOLOGY: The specific name is a noun in apposition taken from the type locality.

DIAGNOSIS: Males resemble those of L. scutata but have a much lower retrolateral tibial apophysis that has a much more pronounced dorsal tip (fig. 312); the palpal bulb is shorter, with the anterior prolateral ledge much less abruptly separated from the translucent distal portion of the bulb (fig. 311). Females have a distinctive heart­shaped epigynal midpiece (fig. 313) and large, ovoid spermathecae on anteriorly narrowed stalks (fig. 314). In both sexes, the lateral white abdominal markings are small, square patches, much narrower than the transverse stripes typical of L. scutata .

MALE: Total length 8.4. Abdominal dorsum gray, with lateral white spots square, narrow, connected median pair of white spots forming inverted v­shaped mark, and small posterior white spot over spinnerets, venter gray; legs reddish orange, femora and sides of tibiae darkest. Palpal femur long, with ventral invagination at about half its length; retrolateral tibial apophysis short, with prolonged dorsal tip (fig. 312); tegulum with pronounced posterolateral corner, embolus relatively short, tip relatively straight (fig. 311).

FEMALE: Total length 9.4. Coloration as in male, except median white spots widely separated. Epigynal midpiece heart­shaped, openings at anterolateral arches of heart (fig. 313); spermathecae ovoid, situated on anteriorly narrowed stalks (fig. 314).

OTHER MATERIAL EXAMINED: Northern Territory : Jasper Gorge , 168019S, 1308429E, June 12, 1978, under rock (H. Cogger, E. Cameron, AMS KS18827 ), 1/. Queensland : Coen, Cape York, 138569S, 1438129E, July 1932 (P. Darlington, MCZ), 1 ?; Davies Creek National Park , 178009S, 1458349E, July 23–Nov. 26, 1992, pitfall (R. Raven, P., E. Lawless, M. Shaw, QMB S19859 ), 2 /; Fairbairn Dam , S Emerald, 238409S, 1488069E, Apr. 21, 1995 (K. McDonald, J. Covacevich, P. Couper, QMB S26328 ), 1 ?; Killymoon Creek , S Townsville, 198249S, 1478019E, Oct. 26, 1991 – July 27, 1992, pitfall (P. Lawless, R. Raven, M. Shaw, QMB S19952 ), 2 /; Lake Moondarra Road , Mount Isa, 208419S, 1398309E, Apr. 18, 1996, spinifex, elev. 310 m (R. Raven, QMB S31252 ), 1 ?; Mareeba , 178009S, 1458269E, Feb. 8, 1970 (N. Coleman, AMS KS31843 ), 1 /; Osbourne Mine site, SSE Mount Isa, 228079S, 1408349E, Dec. 1996 (A. Nicholson, QMB S34302 ), 1 /; Thatch Creek , 198069S, 1458189E, July 26– Dec. 1, 1992, pitfall, dry eucalypt woodland (R. Raven, P., E. Lawless, M. Shaw, QMB S25272 ), 1 /; Wyandotte Creek , 188299S, 1448559E. Dec. 1, 1992 – Apr. 14, 1993, pitfall, dry eucalypt woodland (R., J., S. Raven, P., E. Lawless, QMB S24163 , 24170 ), 2 /.

DISTRIBUTION: Northern Territory and Queensland (map 36).

Figures

Map 36. Records of Lamponina loftia, new species (circles) and L. isa, new species (squares).

Figs. 311–314. Lamponina isa, new species. 311. Left male palp, ventral view. 312. Same, retrolateral view. 313. Epigynum, ventral view. 314. Same, dorsal view.