Cavisternum heywoodi, Baehr & Harvey & Smith, 2010

Baehr, Barbara C., Harvey, Mark S. & Smith, Helen M., 2010, The Goblin Spiders of the New Endemic Australian Genus Cavisternum (Araneae: Oonopidae), American Museum Novitates 3684, pp. 1-40: 27

publication ID

http://doi.org/ 10.1206/667.1

DOI

http://doi.org/10.5281/zenodo.5454830

persistent identifier

http://treatment.plazi.org/id/03A08799-6565-CE32-FF29-FB27EC5DA80A

treatment provided by

Carolina

scientific name

Cavisternum heywoodi
status

new species

Cavisternum heywoodi   , new species

Figures 17 View Figs , 123–127 View Figs , map 5

TYPES: AUSTRALIA: Queensland: Male holotype from Mt Molloy , 16 ° 44 9 27 0 S, 145 ° 19 9 19 0 E, riparian woodland, 400 m (Dec. 1992 – Jan. 1993, S. Burnett) (PBI_OON 00007474), deposited in QM ( S72984 View Materials ). Female allotype from same location (1 Jan. 1993, S. Burnett) (PBI_OON 00020933), deposited in QM ( S59015 View Materials ) GoogleMaps   .

ETYMOLOGY: The specific name is a patronym in loving memory of Hosea Heywood.

DIAGNOSIS: Males of C. heywoodi   resemble those of C. rochesterae   with the sternal concavity occupying about K the sternal length and O of the sternal width (fig. 17), and the epigastric scutum slightly protruding. Males of C. heywoodi   have smaller eyes, and long and thick fangs, which that cross and reach labium (fig. 17), and a long flattened embolus with a deep basal incision (fig. 124). Females of C. heywoodi   differ from other known females by the tripartite copulatory duct (figs. 126, 127).

MALE: Total length 1.17. Carapace 0.54 long, 0.46 wide; abdomen 0.63 long, 0.38 wide. Carapace, sternum, mouthparts, and abdominal scutae orange-brown, legs yellow. Sternum as long as wide, with median concavity occupying about K of sternal length, O of sternal width (fig. 17). Cheliceral paturon with large triangular distal tooth at basis of fang, fang long, tip distally widened, bent posteromedially and crossing other fang. Abdomen ovoid, epigastric scutum slightly protruding. Cymbium-bulb complex square, with a long flattened embolus deeply incised at retrolateral base (figs. 123–125).

FEMALE: Total length 1.21. Carapace 0.52 long, 0.41 wide; abdomen 0.69 long, 0.35 wide. Coloration as in male. Epigastric area with semicircular rim, reaching apodemes laterally, a large U-shaped field consisting of three parts reaching beyond tracheal groove and a narrow copulatory duct (figs. 126, 127).

OTHER MATERIAL EXAMINED: AUSTRALIA: Queensland: Davies Creek National Park , 17 ° 00 9 S, 145 ° 34 9 E, 29 Oct. 1991 – 23 July 1992, R. Raven, P. Lawless, M. Shaw, 2 ³, 1 ♀ (PBI_OON 00006914, QM S22724 View Materials ) GoogleMaps   , 1 ♀ (PBI_OON 00019982, QM S79595 View Materials ) GoogleMaps   ; 23 July– 26 Nov. 1992, R. Raven, P. Lawless, M. Shaw, 2 ³ (PBI_OON 00019949, QM S72979 View Materials )   .

DISTRIBUTION: This species is found in northeastern Queensland (map 5).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Oonopidae

Genus

Cavisternum