Genus Chanbria Muma 1951

Chanbria Muma, 1951: 85, 96; Muma, 1962: 27; Muma, 1970a: 3 (key), 36; Muma 1976: 20; Muma 1989: 3 (key), 18; Harvey 2003a: 249; Brookhart and Brookhart 2006: 301 (key), 315.


                     Undescribed male Chanbria sp. from Baja California.


Type species:

Chanbria regalis Muma 1951


Diagnosis:

Long-legged psammophilic therobatine solifuges in which the fixed cheliceral finger of the adult males is stronly curved upwards.


Original description:

Muma 1951: 85 (key), 96:

"85 - KEY TO GENERA

        MALES

    1. Dorsal bristles of flagellum complex simple and tubular............................Therobates

        Dorsal bristles of flagellum complex plumose, striate, or otherwise modified...........2

   2. Fixed finger distinctly sinuate ........................................................................ Chanbria

        Fixed finger straight or at most weakly curved or undulate..................Hemerotrecha"

96 - CHANBRIA1, NEW GENUS

Small- to moderate-sized Therobatinae. Males with fixed finger distinctly sinuate and lacking mesal groove. Flagellum complex consisting almost entirely of plumose setae that tend to be flattened or clavate near the tip of the finger. Males without ctenidia on venter of first post-spiracular segment of abdomen. Opercula of only known female, a species from Mexico, are lobate posteriorly, with the spermathecal opening occurring behind them. Ectal row of teeth graded III, IV, II, I in size; mesal row I, III, II, IV.

GENOTYPE: Chanbria regalis, new species.


Subsequent accounts:

Muma 1962: 27:

27 - "GENUS CHANBRIA MUMA

The key given below is a revision of that in Muma (1951, p. 96). A modification of the original generic description appears to have been made necessary by the inclusion of the additional species. There are only two ectal fondal teeth in C. tehachapianus, new species. They seem to represent III and IV, with III being the larger. I and II in the ectal row may be small but present or completely missing in the genus. Females frequently lack ectal fondal tooth I or II, or both."

KEY TO MALES

    1. Fixed finger sinuate and lacking aborted teeth ..................... Chanbria serpentinus Muma

        Fixed finger strongly bent dorsally and bearing aborted teeth.......................................... 2

    2. Fixed finger straight from dorsal view and bearing only one aborted tooth and several
      denticules ............................................................................... Chanbria rectus, new species

        Fixed finger bent mesially from a dorsal view and bearing two aborted teeth and several
       denticules........................................................................................................................... 3

    3. Metatarsus of palpus without a scopula; fixed finger of chelicerae constricted near tip and
       attenuated .............................................................. Chanbria tehachapianus, new species

        Metatarsus of palpus with scopula; fixed finger of chelicerae not constricted and
       attenuated near tip ......................................................................... Chanbria regalis Muma


Muma 1970a: 3 (key), 36:

3 -       KEY TO SUBFAMILIES AND GENERA OF EREMOBATIDAE
(MALES AND FEMALES)

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

    Leg I with 2 claws; small, slender, long legged species ....................... Therobatinae Muma-5

2. Palpus with 2 ventral rows of long, robust, spinelike, erectile and deflectile setae on femur,
   tibia, metatarsus, and tarsus ...................................................................... Horribates Muma

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

(MALES ONLY)

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

    Fixed finger elongate and need1elike or stylelike ................................................................ 4

4. Mesoventral groove of fixed finger extending to base of finger; apical seta of flagellum-
  complex flattened and plumose ................................................................ Eremobates Banks

    Mesoventral groove of fixed finger not extending to base of finger; apical seta of flagellum-
  complex tubular, at most striate ............................................................... Eremorhax Roewer

5. Dorsal setae of flagellum complex simple and tubular ........................... Eremochelis Roewer

    Dorsal setae of flagellum-complex striate, plumose, spatulate, or otherwise modified .......
   ............................................................................................................................................... 6

6. Fixed finger distinctly sinuate, bent upward and bent or curved downward; dorsal setae
  plumose ......................................................................................................... Chanbria Muma

36 -    Genus Chanbria Muma

Chanbria Muma, 1951, p. 96.

KEY TO SPECIES-GROUPS (MALES)

    1. Fixed finger sinuate and lacking aborted teeth ................................ serpentinus group

        Fixed finger strongly bent dorsally and bearing aborted teeth.................. regalis group"



Muma 1976: 20:

20 - Genus Chanbria Muma, 1951.

Four names have been applied to species presently recognized as members of this genus, all are apparently valid. Muma (1951, 1962 and 1970) recognized two species groups within the genus.


Muma 1989: 3 (key), 18:

3 -     Key to Subfamilies and Genera of Eremobatidae

  (Males Only)

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

1'. Leg 1 with 2 claws; chelicerae 2.5–3 times longer than wide; tiny to moderate sized
   species ......................................................................................................... Therobatinae-6

2. Fixed cheliceral finger long, style-like or needle-like; mesoventral groove a crease, slot or
   cup-like structure; moderate-sized to large species .......................................................... 3

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

3. Mesoventral groove an indistinct hollow or crease that does not extend to the base of
    the fixed finger; movable finger dentition greatly reduced ................................................
   ....................................................................................... Arenotherus Brookhart and Muma

3'. Mesoventral groove a distinct crease, cup, or slot that may or may not extend to base of
   fixed finger; movable finger dentition normal or increased .............................................. 4

4. Mesoventral groove short, not extending to base of fixed finger; apical striate or
   plumose setae of male flagellum complex not obviously modified or flattened .............. 5

4'. Mesoventral groove long, extending to base of fixed finger; apical plumose seta of male
   flagellum complex obviously enlarged or flattened covering part of the mesoventral
   groove..................................................................................................... Eremobates Banks

5'. Palpal metatarsus, tibia, and femur provided with 2 ventral rows of enlarged, robust,
    spine-like, obviously movable setae ....................................................... Horribates Muma

6. Fixed cheliceral finger strongly recurved, sigmoid, or S-shaped; mesoventral groove
    absent; both dorsal and ventral flagellum complex setae plumose, moderate sized
    species........................................................................................................Chanbria Muma

6'. Fixed cheliceral finger style-like or needle-like, straight, curved, or undulate but not
    S-shaped or sigmoid; mesoventral groove present; dorsal flagellum complex setae
    striate, ventral setae striate or plumose ......................................................................... 7

7. Fixed cheliceral finger with a mesoventral groove that varies from one or more indistinct
    creases to an elongate hollow or cup; small to moderate sized species ............................
   ............................................................................................................. Eremochelis Roewer

7'. Fixed cheliceral finger without a mesoventral groove; tiny to small species ......................
    ............................................................................................................ Hemerotrecha Banks

18 - Genus Chanbria Muma, 1951

Chanbria Muma, 1951 , p . 96; Muma, 1962, p. 27; Muma, 1970 1 p. 36.

This unique sand inhabiting genus is presently under revision so two new forms from the United States are not included here."


Harvey, 2003b: 249

249 - Genus Chanbria Muma

Chanbria Muma, 1951: 96; Muma, 1962: 27-28; Muma, 1970a: 36; Muma, 1976: 20; Muma, 1989: 18.

Type species: Chanbria regalis Muma, 1951, by original designation.

Distribution: Mexico, south-western U.S.A.

Note: Muma ( 1951) did not nominate the gender of Chanbria, but the name appears to be feminine. Neverthless, he consistently used masculine endings to his species-group names (Muma, 1951, 1962), and I here interpret this to indicate that he wanted the genus to be masculine.


Brookhart and Brookhart 2006: 301 (key). 315:

301 -    Key to Subfamilies and Genera of Eremobatidae (males only)

(Taken from Muma 1987)

1. Leg I with 1 claw; chelicerae about twice as long as wide; small to large species .....................
   .............................................................................................................Eremobatinae Roewer-2

   Leg 1 with 2 claws; chelicerae 2.5–3 times longer than wide; tiny to moderate sized species ...
   ........................................................................................................................... Therobatinae-6

2. Fixed cheliceral finger long, style-like or needle-like; mesoventral groove a crease, slot or
   cup-like structure; moderate-sized to large species ................................................................ 3

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

3. Mesoventral groove an indistinct hollow or crease that does not extend to the base of the
   fixed finger; anterior tooth absent .......................................................................... Eremorhax

    Mesoventral groove a distinct crease, cup, or slot that may or may not extend to base of
   fixed finger; anterior tooth present ......................................................................................... 4

4. Mesoventral groove short, not extending to base of fixed finger; apical striate or plumose
   setae of male flagellum complex not obviously modified or flattened ................................... 5

    Mesoventral groove long, extending to base of fixed finger; apical plumose seta of male
   flagellum complex obviously enlarged or flattened; covering part of the mesoventral groove
   ................................................................................................................................. Eremobates

5. Palpal metatarsus, tibia, and femur provided with enlarged spine-like seta, but not robust,
   not aligned in a ventral row, not movable .............................................................. Eremocosta

    Palpal metatarsus, tibia, and femur provided ventrally with robust, obviously movable
   spinelike setae .......................................................................................................... Horribates

6. Fixed cheliceral finger strongly recurved, sigmoid, or S-shaped; mesoventral groove absent;
    both dorsal and ventral flagellum complex setae plumose, moderate sized species ..............
   .....................................................................................................................................Chanbria

    Fixed cheliceral finger style-like or needle-like, straight, curved, or undulate but not
   S-shaped or sigmoid; mesoventral groove present; dorsal flagellum complex setae striate,
   ventral setae striate or plumose ............................................................................................. 7

7. Fixed cheliceral finger with a mesoventral groove that may vary from a distinct crease to
   an elongate hollow or cup; dorsal flagellum complex simple or tubular; small to moderate
   sized species ........................................................................................................... Eremochelis

   Fixed cheliceral finger without a mesoventral groove; dorsal flagellum complex hooked or
   spatulate; tiny to small species ........................................................................... Hemerotrecha

315 -   Genus Chanbria Muma 1951


Notes:


Included species



Bibliography:


  • BROOKHART, J.O. & BROOKHART, I.P. (2006) An annotated checklist of continental North American Solifugae with type depositories, abundance, and notes on their zoogeography. Journal of Arachnology, 34, 299–329. http://dx.doi.org/10.1636/H04-02.1
  •  
  • HARVEY, M.S. (2003e). Catalogue of the Smaller Arachnid Orders of the World. Csiro Publishing, Collingwood, Victoria, Australia. 385 pp.
  •  
  • MUMA, M.H. (1951) The arachnid order Solpugida in the United States. Bulletin of the American Museum of Natural History, 97, 35–141. http://hdl.handle.net/2246/1208
  •  
  • MUMA, M.H. (1962) The arachnid order Solpugida in the United States, Supplement 1. American Museum Novitates, 2092, 1–44. http://hdl.handle.net/2246/3400
  •  
  • MUMA, M. H. 1970a. A synoptic review of North American, Central American, and West Indian Solpugida (Arthropoda, Arachnida). Arthropods of Florida and Neighboring Land Areas, 5: 1- 62.
  •  
  • MUMA, M. H. 1976. A review of solpugid families with an annotated list of western hemisphere solpugids. Publications of the Office of Resesearch, Western New Mexico University, 2 (1): 1-33.
  •  
  • MUMA, M. H. 1989. New species and records of Solpugida (Arachnida) from the United States. 60 pp. Privately published for the author by Douglas Print Shop, Douglas, Arizona.