Ammotrecha itzaana Muma 1986

Ammotrecha itzaana Muma 1951

Ammotrecha itzaana ►Muma, 1986: 16, figs 41-42; ►Muma, 1987: 16-17, figs 41-42; ►Vázquez Rojas, 1995: 31; Vázquez Rojas, 1996e: 76; ►Armas, 2004b: 59; ►Harvey, 2003: 200; ►Brookhart and Brookhart, 2006: 323.

HOLOTYPE: Mexico:. Yucatan - Chichen Itza, at lights, 24 June 1951 (L. J. Stannard), 2 males (holotype, allotype). Deposited in the American Museum of Natural History.

Original description:
Muma, 1986: 16, figs 41-42:

        "MALE HOLOTYPE: Total length, 12.5 to 16.5 mm. Chelicerae, 0.9 to 1.3 mm. wide and 3.2 to 4.2 mm. long. Propeltidium, 2.2 to 3.0 mm. wide and 2.1 to 2.6 mm. long. Holotype larger measurements. Chelicerae, 0.7 mm. wide and 2.6 mm. long.
         Coloration in alcohol pale to dusty yellow with purplish brown markings as follows: venter, sternites, malleoli, and appendage coxae pale yellow; chelicrae and propeltidium dusty yellow; palpi dark on tarsi and apical half of metatarsi with other segments dusty yellow; leg 1 dusky on tarsus, metatarsus, and tibia with other segments pale yellow; leg 2 indistinctly dusky on femur, tibia, and metatarsus with other segments pale yellow; leg 4 dusky on femur, tibia, and metatarsus with other segments pale yellow.
         Structure similar to that of other males of the genus. Dentition as shown in figure 41. Palpi with 5 pairs of spine-like setae, as shown in figure 42. Chelicerae 3.4 times longer than wide. Propeltidium 1.1 times wider than long. Eyes separated by slightly less than one diameter. Flagellum attached to fixed finge behind principal tooth."

Fig. 41 - Right male chelicera, ectal view; Fig. 42 - Right male palpus, tibia, metatarsus, and tarsus, mesoventral view.

DISTRIBUTION: Mexico (Yucatan). Known only from type locality.

PUBLISHED RECORDS: Known only from the type series.

NOTES: Muma (1986,1987) stated that this species appears to be closely related to A. stolli [sic], but can be distinguished by its pale palpi, which are dark only on the tarsi and apical ends of the metatarsi, and the obscure indentation on the dorsal margin of the fixed cheliceral finger. He further noted that it differs from A. nigrescens Roewer 1934 and A. chiapasi Muma 1986 in having much paler and less extensive markings, and differs from A. limbata (Lucas 1835) in possessing 5, rather than 4, pairs of spine-like setae on the palpal metarsus. Vázquez Rojas (1995) included the species in a checklist of arachnids occurring in Mexico. Armas (2004) listed the species in a catalog of the solifuges of Central America and the Antilles, noting that it was known only from two males taken at a light at the type locality. Brookhart and Brookhart (2006) included the species in their checklist of North American solifugae, again noting that it was known only from the holotype and paratype mentioned above.

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