Chanbria
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| Chanbria | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Solifugae |
| Family: | Eremobatidae |
| Subfamily: | Therobatinae |
| Genus: | Chanbria Muma, 1951[1] |
| Type species | |
| Chanbria regalis Muma, 1951 | |
| Species | |
| |
Chanbria is a genus of camel spiders. It consists of four species found in the Sonoran Desert in Mexico and the southwestern United States.[2][3]
American arachnologist Martin Hammond Muma created this genus in 1951. He wrote the generic name, Chanbria, was an "arbitrary combination of letters based on an anagram of the name Branch", referring to Jefferson H. Branch; Branch had collected the holotype for the type species.[1] Muma did not explicitly designate a gender, but Australian arachnologist Mark S. Harvey notes that Muma used masculine endings for species in this genus.[2]
Muma's 1951 circumscription included two newly described species, the type species C. regalis and C. serpentinus.[1] In 1962, he described two additional species: C. rectus and C. tehachapianus.[4]
In 1970, Muma grouped the four Chanbria species into two species groups: the regalis-group (C. rectus, C. regalis, and C. tehachapianus), and the serpentinus-group (C. serpentinus).[5] Subsequent arachnologists have not made use of these species groups in their taxonomy.[2][3]
A nomen nudum, C. coachella, was listed by American entomologists Gary Allan Polis and Sharon J. McCormick in 1986 as prey of the scorpion Paruroctonus mesaensis, but this species was not formally described.[6][2]
When Muma created the genus Chanbria, he placed it in the subfamily Therobatinae, which he also circumscribed in the same 1951 paper.[1]: 85 In an unpublished manuscript he wrote shortly before he died, Muma proposed a new subfamily, Hemerotrechinae, characterized by two tarsal claws on leg I and males which lack a mesal groove on their fixed cheliceral finger. Muma placed Chanbria and most Hemerotrecha species in this subfamily.[7]: 281 Subsequent arachnologists have placed Chanbria in Therobatinae,[2][3] although American arachnologist Paula E. Cushing and colleagues have argued Therobatinae is in need of taxonomic revision as the subfamily is polyphyletic.[7]
An analysis by American arachnologist Paula E. Cushing and colleagues suggests the most recent common ancestor for Chanbria was in the Late Miocene. Their BEAST analysis suggested the genus was monophyletic.[7]: 290