|
Eremobates aztecus Pocock 1902
Eremobates aztecus
►Pocock
1902c: 60-61, plate XII figs 2, 2a, 3, 3a; Roewer 1933: fig. 163c; ►Roewer
1941: 178;
►Muma 1970a: 26, figs 28-31;
►Muma 1976: 17;
►Muma 1986: 20;
►Muma 1987: 20;
►Vázquez Rojas 1995: 31; Vázquez Rojas 1996e: 76;
►Brookhart and Brookhart,
2006: 305.
Eremoperna azteca (Pocock):
►Roewer 1934: 558, 560-562, figs 323d, 324e; Caporiacco 1938: 254.
Eremoperna aazteca (Pocock):
►Roewer 1934: 559, fig. 322c.
HOLOTYPE:
Hab. MEXICO,
Guanajuato,
Atoyac in Vera Cruz
(A. Dugès).
TYPE LOCALITY:
Male and female
types
from
Guanajuato. Mexico.
in BMNH.
Original
description:
Pocock, 1902c:
60-61, plate XII figs 2, 2a, 3, 3a
♀,
Colour: carapace, with
exception of the black ocular tubercle
and a narrow
marginal
transverse line
on each side
of
the
latter, mandibles, palpi,
and
legs a uniform
clear ochre-yellow,
the tip
of the tarsus of
the palp only being brownish;
terga. of
abdomen and thorax blackish, sides
of these regions
deep ashy-grey,
sternal plates yellowish.
Width of
head-plate exceeding length of
patella of palp, about equal to its tibia and tarsus, and to patella
or
tibia and tarsus of fourth leg; tubercle furnished
in front with numerous subequal bristles.
Mandible
furnished above
with
simple long bristles;
upper jaw armed
distally with two
large subequal
teeth and a smaller tooth between them, proximally with
one very large
tooth, which bears two
much smaller teeth on its anterior slope at
the base, and
behind it one minute tooth
just above the
upper cheek-tooth of the outer row, upper cheek-tooth
of inner row long;
lower
jaw
armed
with two large teeth, the distal a little
smaller than the
proximal, and two smaller
intermediate
teeth, the
upper of
which is
situated
on the
anterior slope of the proximal
principal tooth and the lower at
its base.
Palpi covered with longer and shorter bristles,
entirely
without spines,
except for
one long
apically
setiform
spine on
the inner
side of the distal end of the femur;
lower side of the tibia beset with
many vertical and truncate so-called
cylindrical
bristles.
Patella of legs, armed
beneath apically with a pair
of long
spines,
which on
that of
the fourth
leg are
apically setiform, and one anterior setiform spine, thicker on the fourth
than on the third,
and very slender on
the second, in the distal
third of
the segment;
the tibia armed beneath with
three anterior and four
posterior
slender spines
(in
addition to
the five
strong spines on the upperside
of these segments
on the
second and
third legs); tarsus of fourth
with
four pairs of spines,
the sides
and the lower
surface
of the segment
normally
bristly.
♂. Resembling the female in colour,
but with
the paJpi and legs stained
with brown.
Carapace about two-thirds
the length
of the patella, or the tibia
and tarsus of the palp and of the patella
of the
fourth leg,
and as long as the tibia
of the fourth.
Mandible with upper fang nearly straight, gradually tapering to a point., projecting
nearly at right
angles
from the plane of the
cheek-teeth;
the long upper cheek-tooth
of the outer
series
separated
from the
base of
the fang by a wide
space,
which
is about equal to the diameter
of the base of
the fang, a minute tooth above the long cheek-tooth and three below
it,
the middle
of which is the
larger;
the inner row of four teeth, the upper the largest, the third larger
than the second,
the fourth
or lowest
the smallest., and
situated on the tooth above it;
lower
jaw armed with one large tooth, which
is furnished
anteriorly at the base with one
minute tooth. Spine-armature of
legs as in femaIe.
M easurements
in mm.-
♀.
Total
length
of trunk
27; width of
head-plate 7 ; length
of palpus 19, its patella 6:
tibia and tarsus 7; fourth leg 22, its patella
7. ♂.
Total length
19; width
of carapace 4.5; length
of
palpus 19, its patella
7; tibia and tarsus 7.3
; fourth
leg 22, its patella
7.
SUBSEQUENT
ACCOUNTS:
Roewer 1933: fig. 163c;
Roewer 1934: 558, 560-562, figs 323d, 324e
(as Eremoperna azteca);
59, fig. 322c (as
Eremoperna aazteca (Pocock).
Schlüssel der ♂♂ (inkl. Diagnose):
1". Büschel des Flagellumkomplexes nur aus einfachen, gleichartigen
Borsten bestehend; unbeweglicher Finger
ohne einen dorsal-basalen
Höcker
......................................................................2.
2". Unbeweglicher
Finger
mit 4 medialen und 4 lateralen
Wangenzähnen, deren 1. jeweils der größte seiner Reihe ist; beweglicher
Finger mit 1 Haupt- und 1 medialen Wangenzahn, ohne weitere Zähne; Gebiß
(Abb. 322, c); Pedipalpen wie bei
E. formidabilis ;
2. Tibia dorsal-apikal mit 1 und 3. Tibia
hier mit 2 Dornen; 2.-4.
Metatarsus
wie bei
E. formidabilis
bedornt. 5.
Sternit des Opisthosoma mit Ctenidien und
Färbung wie bei E. formidabilis; Korperlänge 19 mm; Mexiko..........................................................................................................................3.
E. azteca
Schlüssel der ♀♀ (inkl. Diagnose):
I". Beweglicher Finger mit nnr 2 Zwischenzähnen.........................................................3.
3' Beweglicher Finger mit 1 medialen Wangenzahn; Gebiß
(Abb.323,d);
2. Tibia dorsal-apikal mit 1 und 3. Tibia hier mit 2 Dornen; 2. und 3.
Metatarsus dorsal mit 5 Dornen der Haupt- und 4 Dornen der Nebenreihe;
Sternithälften des Genitalsegmentes (Abb. 324, e); Pedipalpen
nur behaart, ihr Metatarsus ohne ventrale Scopula und ohne Zylinderborsten;
Färbung wie beim ♂; Körperlänge 27 mm; Mexiko.......................................................................................,,,,......................3. E.
azteca
3. Eremoperna azteca Pocock 1902 S. 60 (sub Eremobates). ♂, ♀ - Mexiko (Guanajuato, Atoyac) - (vidi 1
♂,
2 ♀, Typus).
Caporiacco, 1938: 254 (as
Eremoperna azteca).
Roewer 1941: 178;
Erneut gefunden und nachgewiesen aus:
Mexico (Patzcuaro) - 1 ♂ - (Typus im Zool. Inst. Univ. Bologna?).
Muma, 1970a: 26, figs 28-31;
MALE:
TYPE:
Total
length
24.0 mm.
| |
LENGTH |
WIDTH |
|
Chelicerae |
5.8 mm. |
2.8 mm. |
|
Propeltidium |
3.0 mm |
4.2 mm |
|
Palpi |
21.0 mm |
|
|
1st legs |
18.0
mm |
|
|
4th legs |
28.0
mm |
|
Color
in alcohol pale yellow
except
as follows, propeltidium narrowly
dusky
on anterior
margin; abdominal
tergites
dusky
purple.
Dentition
as shown in figures 28
and 29.
Movablc finger with distinct
mesal tooth,
anterior tooth of movable finger reduced to an indistinct ridge, and fondal notch with aborted
teeth. Palpi with
usual clothing except
cylinder bristles
fewer than
usual and
no scopula. Abdominal ctenidia
absent.
FEMALE TYPE, Total length 33.5
mm.
| |
LENGTH |
WIDTH |
|
Chelicerae |
8.0 mm |
3.7
mm |
|
Propeltidium |
4.2
mm |
4.2 mm |
|
Palpi |
20.0
mm |
6.9
mm |
|
1st legs |
19.0 mm |
|
4th legs |
21.0 mm |
|
Color
in alcohol
same
as that of male except
abdominal
tergites darker. Structure typical of genus. Dentition
as shown in figure 30; mesal
tooth
of movable
finger present.
Abdomen with trace
ctenidia. Palpi
without scopula
but otherwise with
typical
bristles, setae,
and spines.
Opercula
as shown in figure 31.
Figs. 28-31.
Eremobates aztecus Pocock (redrawn from Muma (1970): 28. Ectal view
of right male chelicera. 29. Mesal view of male fixed finger.
30. Ectal view of left female chelicera. 31. Ventral view of
female genital opercula.
Muma, 1976: 17
Male and female types from
Guanajuato, Mexico in BMNH. Distibution North America: Mexico
(Guanajuato), known only from the types.
Muma, 1986: 20; Muma 1987: 20
Pocock described this species from Distrito Federal,
Mexico; Roewer (1934) also recorded it from Atoyac, Mexico, and (1941)
from Patzcuaro, Mexico.
Vázquez Rojas (1995) included this species in a list of the solifuges of Mexico.
Vázquez Rojas, 1996e: 76
Brookhart and Brookhart, 2006: 305.
Brookhart
and Brookhart (2006) included this species in
their annotated checklist of
continental North American Solifugae,
DISTRIBUTION:
Mexico.
PUBLISHED
RECORds:
nOTES:
Pocock (1902) - From key to Central American species:
Upper (immovable)
jaw of mandible toothless,
nearly straight,
and projecting
almost at right
angles from the basal area bearing
the
cheek·teeth. (Males.)
Lower jaw of mandible with one large proximal tooth
and one
or two small
teeth
in front
of it.
Distal
end of femur
and proximal
end of
patella
of palp unspined;
lower jaw of mandible
with one small tooth in front
of the large
tooth,
and none on the inner
side.
Mandible
without dark
stripes; upper
jaw almost
straight,
gradually
tapering; upper
long cheek-tooth
separated from
base of movable jaw
by a space which is nearly equal to the
basal
diameter
of
the latter
Muma 1970:
DlAGNOSIS:
Males
are distinguished
by the lack of a scopula,
the lack
of ctenidia,
and pale palpi
and legs.
Females
are similarly colored with distinctive opercula.
DISCUSSION: The mesodorsal
position
of the male cheliceral mesal grooye. the multiple intermediate teeth
of the female movable cheliceral
finger,
and
the distinctive opercula
have prompted
the placement of this
species in a separate
species group.
|
