Genus Eremothera Muma 1951

Eremothera sculpturata Muma 1951: 38 (figure 14), 39 (figure caption), 41 (key), 82; Muma 1970a: 3 (key), 29; Muma 1976: 18; Muma 1986: 9–10; Muma 1987: 10; Muma 1989: 3 (key), 15.


Type species:

Eremothera sculpturata Muma 1951


Diagnosis:

Eremobatine species in which the fixed cheliceral finger of the male is shortened and bears pronounced ectal and mesal flanges on the dorsal surface.


Ectal view of chelicera of male Eremothera sculpturata Muma from Arizona.


Original description:

Muma 1951: 82:

"Moderate-sized Eremobatinae. Fixed finger of males a flanged, shovel-like structure, with a weak mesal groove that does not extend the length of the finger. Flagellum complex composed of two large, dorsal, spatulate bristles between which is a long, slender, apically plumose spine and a basal group of short, slender, simple spines. First postspiracular abdominal sternite of males with ctenidia on its posterior margin. Mesal tooth of movable finger present. Ectal row of fondal teeth graded in size III, I, IV, II; mesal row I, III, II, IV."


Muma notes in his diagnosis of the subfamily Eremobatinae (p. 41): "Fixed finger of male chelicera usually style-like, except in Eremothera, new genus, and usually having a ventral or mesoventral groove."
In the first couplet of a key to males of the subfamily (same page) he separates Eremothera on the first couplet: "Fixed finger sculptured, not style-like......Eremothera"


Subsequent accounts:

Muma 1970a: 3 (key), 29 (heading, literature reference)

"Leg I with 1 claw; large, robust, short legged species…Eremobatinae Roewer...................2

Palpus with or without spinelike setae; when present, apparently not movable and not on metarsus and tarsus..............................................................................................................3

Fixed finger short and dorsally lobate or sculptured...............................Eremothera Muma"


Muma 1976: 18:

""


Muma 1987: 10:

"The new records and new species of this genus that are included here do not significantly alter the diagnostic characters cited by Muma (1951). It should be noted, however, that one of the two large spatulate setae of the flagellum complex may be the apical plumose bristle and not a dorsal bristle as previously stated."


Muma 1989: 3 (key), 15:

"Leg 1 with one claw; chelicerae about twice as long as wide; small to large species ......
............................................................................................................. Eremobatinae ... 2

Fixed cheliceral finger short, sculptured and flanged; mesoventral groove a trough-like slot; moderate-sized species ............................................................. Eremothera Muma "


"Moderate- sized Eremobatinae. Fixed cheliceral finger of males sculptured and with short, weak mesal groove that does not extend length of finger. Dorsal setae of flagellum complex striate; ventral setae plumose; apical striate, and apical plumose setae both flattened and spatulate. Females have opercula broadly triangular in form."


Notes:

The genus Eremothera contains two species from the southwestern United States and adjacent Mexico.



Included species



Bibliography: