Cyrtognatha catia, Dimitrov & Hormiga, 2009

Dimitrov, Dimitar & Hormiga, Gustavo, 2009, Revision And Cladistic Analysis Of The Orbweaving Spider Genus Cyrtognatha Keyserling, 1881 (Araneae, Tetragnathidae), Bulletin of the American Museum of Natural History 2009 (317), pp. 1-140 : 35-37

publication ID

0003-0090

persistent identifier

https://treatment.plazi.org/id/A23B87F1-FFD0-FFC5-EB0B-B6817EDEFE5D

treatment provided by

Felipe

scientific name

Cyrtognatha catia
status

sp. nov.

Cyrtognatha catia View in CoL , new species Figure 8

TYPE: Male holotype from Colombia, Cali, Valle del Cauca, San Antonio (near El Saladito), 3 ° 29 9 49.2 0 N, 76 ° 37 9 29.1 0 W, 2085 m elevation. 16.ii.1998, G. Hormiga, J. Coddington, J. Zujko-Miller, and D. Correa ( USNM).

ETYMOLOGY: Named after the Catíos, the indigenous people living in Cauca Valley ( Colombia) before the arrival of the Europeans. The species name is a noun in apposition.

DIAGNOSIS: Easily distinguished from similar congeners ( C. quichua and C. pachygnathoides ) by the shape of the embolus, which in ventral view is shaped as double S (fig. 8A) and is conspicuously curved in lateral view (fig. 8B, C). Further distinguished from C. pachygnathoides by the reduced membrane between the metine embolic apophysis and the embolus and the cylindrically shaped distal part of the embolus (fig. 8A–C). In C. pachygnathoides the embolus widens distally subapically and has a laminar shape. In C. quichua the embolus and the metine embolic apophysis are very similar but the embolus carries a semimembranous ridge that reaches to its tip (figs. 11A, 12D).

DESCRIPTION: Male (holotype). Habitus as in figure 8D–G. Carapace yellow-brownish with a well-marked fovea. Abdomen yellowish with numerous guanine spots and a short dorsal tubercle distally. Total length 4.75. Cephalothorax 2.25 long, 1.32 wide, 0.95 high. Abdomen 2.50 long, 1.18 wide, 1.25 high. Sternum 1.00 long, 0.87 wide. Clypeus

height 1.9 times one AME diameter. AME, ALE, and PLE almost the same size. AME diameter 0.1. PME slightly larger. Distance between PLE and PME twice the diameter of PME. ALE and PLE very close to each other. Distance between AME equal to their diameter; between PLE half of the PLE diameter. Chelicerae (fig. 8E) slightly darker than the cephalothorax with large dorsal tooth distally situated very close to the joint of the cheliceral fang. Femur I 3.92, 1.74 times the length of the cephalothorax. Pedipalp as in figure 8A–C. Palpal tibia length 0.23; cymbium length 1.01.

Female. Unknown.

DISTRIBUTION: This species is known only from the type locality (fig. 5).

USNM

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Tetragnathidae

Genus

Cyrtognatha

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