Cavisternum ledereri, 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 : 29-30

publication ID

https://doi.org/ 10.1206/667.1

publication LSID

lsid:zoobank.org:pub:C6A064BB-45E2-494A-935D-D7797D6E7BCC

persistent identifier

https://treatment.plazi.org/id/03A08799-6563-CE35-FF5F-FBABE95FA8DE

treatment provided by

Carolina

scientific name

Cavisternum ledereri
status

sp. nov.

Cavisternum ledereri View in CoL , new species

Figures 19 View Figs , 131–135 View Figs , map 4

TYPES: AUSTRALIA: Queensland: Male holotype from Thatch Creek (NQ 32), 19 ° 06 9 S, 145 ° 18 9 E (26 July–1 Dec. 1992; R. Raven, P. Lawless, E. Lawless, M. Shaw) (PBI_OON 00020010), deposited in QM ( S25275 View Materials ). Female allotype collected with holotype (PBI_OON 00023346), deposited in QM ( S83815 View Materials ) GoogleMaps .

ETYMOLOGY: The specific name is a patronym in honor of Zachary Lederer, a supporter of spider taxonomy.

DIAGNOSIS: Males of C. ledereri resemble those of C. foxae as both have the sternal concavity occupying the whole sternal length (fig. 19) and the epigastric scutum is not protruding. However, males of C. ledereri can be easily separated from all other species by their pear-shaped cymbium-bulb complex with a bifurcate embolus (fig. 133). Females can be easily distinguished from all other Cavisternum species by their dark, broadly oval epigastric area with inverted V-shaped copulatory opening situated between groove and epigastric fold, and with the copulatory duct short, broadly oval and narrowed toward the epigastric fold (figs. 134, 135).

MALE: Total length 1.11. Carapace 0.51 long, 0.40 wide; abdomen 0.60 long, 0.30 wide. Carapace, sternum, mouthparts, and abdominal scutae pale orange, legs yellow. Sternum longer than wide, concavity, along the whole length of the sternum, U-shaped field of clavate setae covering about L of sternum width (fig. 19). Cheliceral fangs extremely long, crossed, tips bent medially and distally widened. Abdomen cylindrical, epigastric scutum not protruding. Cymbium-bulb complex pear shaped with bifurcate embolus (figs. 131–133).

FEMALE: Total length 1.17. Carapace 0.50 long, 0.38 wide; abdomen 0.67 long, 0.30 wide. Coloration as in male. Epigastric area a broadly oval region with inverted V-shaped copulatory opening, situated between groove and epigastric fold, copulatory duct short, broadly oval, narrowed toward epigastric fold (figs. 134, 135).

OTHER MATERIAL EXAMINED: AUSTRALIA: Queensland: Thatch Creek (NQ 32), 19 ° 06 9 S ,

145 ° 18 9 E (26 July–1 Dec. 1992, R. Raven, P. Lawless, E. Lawless, M. Shaw), 2 ³ (PBI_OON 00023345) (QM S83814 View Materials ) ; same data except (1 Dec. 1992 – 14 Apr. 1993), 18 ³, 1 ♀ (PBI_OON 00007430) (QM S59573 View Materials ) ; same data, 1 ³ (PBI_OON 00020939, QM S52810 View Materials ) .

DISTRIBUTION: This species is known only from the type locality in mideastern Queensland (map 4) .

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Oonopidae

Genus

Cavisternum

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