Category:Masteriinae
From Dipluridae
| Masteriinae Simon, 1889 |
|---|
| Systematic |
| Order: Araneae |
| Infraorder: Mygalomorphae |
| Family: Dipluridae |
Contents |
Diagnosis
Masteriinae can be distinguished from Diplurinae and Ischnothelinae by the absence of maxillary cuspules, and all other diplurids in the reduced size of the anterior median eyes and the linear maxillary serrula.
Description
Carapace very flat with long erect bristles; fovea small pitlike or very short. Eye group small, compact, with six or eight eyes (anterior median eyes very small or absent).Chelicerae small, with only one margin with teeth. Intercheliceral tumescence absent. Maxillae stout, bulbous, or barrel-shaped, anterior lobe indistinct; cuspules absent; serrula single, straight, or curving row of long erect teeth. Labium much wider than long, without cuspules. Labiosternal suture laterally wide, deep. Sternum cordate, narrow; all sigilla oval, marginal. Third leg usually shortest. Legs elongate but weakly spinose, without preening combs. Males with unsegmented tarsi; cymbium bilobed, spinose. Palpal bulb pyriform with short embolus with elongate paraembolic apophysis (some Masteria). Tibia I of males with bipartite cuticular process or bare. Paired claws with one S-shaped row ofteeth; unpaired claw long, curved with several long, fine teeth on common process. Tarsal organ with three exposed receptors in concave depression surrounded by concentric ridges. Scopulae entirely absent in both sexes. Posterior median spinnerets with crescent of hirsute cuticle isolated by pallid glabrous tissue anterior to bases. Posterior lateral spinnerets long; all segments subequal. Spermathecae consisting of two entire or divided receptacula seminins.
Genera included
Key to the genera of Masteriinae
1. Posterior median eyes present ..........2
– Posterior median eyes absent ..........Chilehexops
2. Australotheline crescent present; thoracic pattern absent; Tibia I mating apophysis or megaspine present in males; female with divided spermathecae ..........Masteria
– Australotheline crescent absent; thoracic pattern present; Tibia I mating apophysis or megaspine absent in males; female with undivided spermathecae ..........Striamea
In synonymy
Accola Simon, 1889 = Masteria L. Koch, 1873 (Raven, 1979: 624).
Antrochares Rainbow, 1898 = Masteria L. Koch, 1873 (Raven, 1979: 624).
Microsteria Wunderlich, 1988 = Masteria L. Koch, 1873 (Raven, 2000a: 573).
References
- Raven, Robert J. 1979: Systematics of the mygalomorph spider genus Masteria (Masteriinae: Dipluridae: Arachnida). Aust. J. Zool. 27: 623-636.
- Raven, Robert J. 1985: The spider infraorder Mygalomorphae (Araneae): Cladistics and systematics. Bull. Am. Mus. nat. Hist. 182: 1-180.PDF
Subcategories
This category has the following 3 subcategories, out of 3 total.
