Cyrtognatha morona, 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 : 44-47

publication ID

0003-0090

persistent identifier

https://treatment.plazi.org/id/A23B87F1-FFD9-FFCF-EAC5-B22F7E30FDCB

treatment provided by

Felipe

scientific name

Cyrtognatha morona
status

sp. nov.

Cyrtognatha morona View in CoL , new species Figure 16

TYPE: Male holotype from Ecuador, Morona Santiago, 3.0093S, 78.4939W, elevation 1750 m. 12.vii.2004, Maddison, Agnarsson, Iturralde, and Salazar ( MCZ).

ETYMOLOGY: The species epithet is a name in apposition taken from the type locality.

DIAGNOSIS: Cyrtognatha morona can be easily distinguished from all other Cyrtognatha species by the presence of a very conspicuous apophysis on the top of the embolus (fig. 16A–C). The overall shape of the embolus is also very diagnostic (fig. 16A–C).

DESCRIPTION: Male (holotype). Habitus as in figure 16D–G. Carapace yellowish with a well-marked fovea and darker band running longitudinally. Carapace margins with darker grayish bands. Legs greenish, darker than the cephalothorax. Abdomen cylindrical, with small tubercles. Tip of the dorsal tubercle oriented caudally. Abdomen with gray-greenish coloration and with numerous guanine spots concentrated in two dorsolateral bands. Central part of the abdomen dorsally with darker greenish coloration and without guanine. Ventrally the epigastric furrow well marked, brownish in color, and strongly chitinized. Spinnerets coloring darker and brownish. Total length 4.75. Cephalothorax 2.00 long, 1.43 wide, 0.88 high. Abdomen 2.75 long, 1.00 wide, 0.88 high. Sternum yellowish with greenish tones and darker edges, 0.93 long, 0.85 wide. Endites and labium darker with brown pigmentation. Clypeus height 1.7 times one AME diameter. Eyes nearly the same size. AME diameter 0.10. All eyes surrounded by darker brownish pigmentation. Lateral eyes over short elevations. ALE touch PLE. Distance between AME slightly less than their diameter; between AME and ALE at about 1.5 times one AME diameter. PME separated by distance slightly shorter than PME diameter. Chelicerae (fig. 16E) dark brown, robust, and widely divergent. Dorsal cheliceral tooth very well developed, outlying the fang joint and curved prolaterally. Cheliceral fang with welldeveloped dorsal outgrowth. Femur I 4.65, 2.32 times the length of the cephalothorax. Pedipalp as in figure 16A–C. Palpal tibia length 0.27; cymbium length 0.95.

Female. Unknown.

DISTRIBUTION: Known only from the type locality (fig. 5).

MCZ

Museum of Comparative Zoology

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Tetragnathidae

Genus

Cyrtognatha

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