chiapasi Muma 1986
Ammotrecha chiapasi ►Muma, 1986:
15-16, figs 38-40; ►Muma, 1987: 15-16, figs 38-40; ►Vázquez
Rojas, 1995: 31; Vázquez Rojas, 1996e: 76; ►Armas, 2004b: 59; ►Harvey,
2003: 200. ►Brookhart and Brookhart, 2006:
Chiapas - San Cristobal de las Casas, in house, 29 October 1971 (Dennis E.
Breedlove), 3 males (holotype, 2 paratypes) and 2 females
Deposited in the California Academy of Sciences.
Muma, 1986: 15-16, figs 38-40:
Total length 16.5 to 17.0 mm. Chelicerae 1.3 to 1.4 mm wide and
4.2 to 4.7 mm long. Propeltidium 2.9 to 3.1 mm wide and 2.3 to 2.7
mm long. Holotype larger measurements.
Coloration in alcohol pale to
bright yellow marked with purplish brown essentially as in A. stolli
[sic]. Venter, malleoli, sternites and appendage coxae pale
yellow. Chelcerae and propeltidium bright yellow with propeltidium
slightly darker. Abdominal tergites dark along margins and lighter
to almost white mesally; abdominal pleura dusky dorsally and pale
Legs and palpi dusky on tarsi, metatarsi, tibiae and apical ends of
femora; palpi with a pale to white ring at the proximal end of the
metatarsi that is broadest ventrally and interrupted dorsally. One
of the paratypes has the abdominal pleura paler than usual with the
result that the tergite markings form two distinct dorsal stripes.
Dentition essentially typical
of other males of the genus except for the dorsal indentation of the
fixed cheliceral finger as shown in figure 38. Palpi clothed with
the usual cylinder bristles, and long and short hairs, but lacking a
series of stout spine-like setae on the tibiae and metatarsi as shown in
Chelicerae 3.2 times longer
than wide. Propeltidium 1.2 times wider than long. The eyes
are separated by less than one diameter and the flagellum is attached to
the fixed finger with an elongate, elliptical disk just behind the
principal tooth. Flagellum not visible from ectal view.
FEMALES: Total length
20.0 to 20.5 mm. Chelicerae 1.7 to 2.1 mm. wide and 2.7 to 3.1 mm.
long. Allotype larger measurements.
Female coloration essentially
the same as that of the males except somewhat paler.
Structure also similar to that
of the males except for sexual differences. Chelicerae as shown in
figure 40, with peak of cheliceral carina over first fondal tooth.
Palpi clothed as in the males.
Chelicerae 2.9 times longer
than wide. Propeltidium 1..4 times wider than long. Eyes
separated by less than one diameter. Opercula 2.5 times wider than
long; caudal notch 3/5 times the length of the opercula.
Fig. 38 - right male chelicera,
ectal view; Fig. 39 - right male palpus, mesoventral view; Fig. 40 -
right female chelicera, ectal view.
Chiapas. Known only from
PUBLISHED RECORDS: Known only
from the type series.
NOTES: Muma (1986) noted that
this species is readily distinguished from others in the genus by the
presence of a white ring at the proximal end of the palpal metatarsus and
the lack of paired, stout, spine-like setae on the palpal metatarsus.
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 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 type series.