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Cryptoscatomaseter Gordon and Skelley 2007
Cryptoscatomaseter Gordon and Skelley 2007: 414.

Cryptoscatomaseter magnificens (Robinson)
Cryptoscatomaseter incomptus Gordon and Skelley
Cryptoscatomaseter magnificens (Robinson), male.
Photos by P. Skelley.
Family........... Subfamily......


Aphodiinae Overview

Aphodiinae Key

Aphodiini Key

Type species. Aphodius haldemani Horn 1870: 33, by original designation.

Diagnosis. Body length 4.5-10.0 mm, elongate, flattened, red to black. Head and pronotum smooth; clypeus lacking marginal teeth, lacking lateral setal fringe. Pronotum broad, often explanate laterally, lacking setal fringe; basal edge usually lacking marginal line, if present, then weakly developed. Metatibial apical spinules long, unequal in length.

Distribution. North America and Mexico.


Composition. Cryptoscatomaseter presently contains 29 species.

Cryptoscatomaseter acuminatus
(Cartwright 1944) [Aphodius]: 133, TX-LA-NE.
Cryptoscatomaseter brevicollis (LeConte 1878: 455) [Aphodius], Alta-Canada to Ia-KS-OR-USA.
Cryptoscatomaseter browni (Hinton 1934: 277) [Aphodius], SW-Canada to NW-USA.
         = Aphodius smithi Brown 1930: 2 [not Aphodius smithi Shipp 1897].
Cryptoscatomaseter caccabatus (Warner and Skelley 2006: 55-57) [Aphodius] W-US.
Cryptoscatomaseter captivus (Cartwright 1944: 147) [Aphodius], TX-USA.
Cryptoscatomaseter criddlei (Brown 1928: 19) [Aphodius], Alta-Sask-Man.-Canada to Wyo-USA.
Cryptoscatomaseter depressiusculus (Schmidt 1907: 201) [Aphodius], W-USA.
          = Aphodius marginatus LeConte 1878: 456 [not Aphodius marginatus Fischer 1842].
Cryptoscatomaseter durangoi (Gordon and Howden 1973: 440) [Aphodius], Mexico.
Cryptoscatomaseter ejectus Gordon and Skelley 2007: 460, AZ-US.
Cryptoscatomaseter epulus (Gordon and Howden 1973: 440) [Aphodius], Mexico.
Cryptoscatomaseter excavatus (Robinson 1940: 143) [Aphodius], UT-USA.
Cryptoscatomaseter gambrinus (Skelley and Gordon 2001: 88-89) [Aphodius] SE-USA.
Cryptoscatomaseter haldemani (Horn 1887: 33) [Aphodius], KS-LA-TX-OK-USA.
           = Aphodius politus Horn 1870: 128 [not Aphodius politus Mulsant and Rey 1870].
Cryptoscatomaseter hubbelli (Skelley and Woodruff 1991: 524) [Aphodius], SE-USA.
Cryptoscatomaseter incomptus Gordon and Skelley 2007: 463, UT-USA.
Cryptoscatomaseter iowensis (Wickham 1913: 28) [Aphodius], Alta-Man.-Canada to IL-NE-USA.
Cryptoscatomaseter magnificens (Robinson 1940: 144) [Aphodius], IN-ND-TX-USA.
            = Aphodius haldemani, in Helgesen and Post 1967: 40, (mis-identification).
Cryptoscatomaseter ochreipennis (Horn 1871: 295) [Aphodius], CA-USA.
Cryptoscatomaseter oklahomensis (Brown 1928: 36) [Aphodius], OK-TX-USA.
            = Aphodius atwateri (Cartwright 1944: 149), TX-USA.
Cryptoscatomaseter paulseni (Skelley 2006: 57-59) [Aphodius] NE-KS-TX-US.
Cryptoscatomaseter pholetus (Skelley and Woodruff 1991: 531) [Aphodius], SE-USA.
Cryptoscatomaseter platypleurus (Skelley and Woodruff 1991: 528) [Aphodius], SE-USA.
Cryptoscatomaseter punctissimus (Brown 1928: 35) [Aphodius], USA - Canada.
            = Aphodius socialis Brown 1928: 38.
Cryptoscatomaseter rossi (Cartwright 1944: 130) [Aphodius], TX-USA.
Cryptoscatomaseter salsburyi (Gordon 2006: 51-53) [Aphodius], KS-NE-TX-USA.
Cryptoscatomaseter talpoidesi (Brown 1928: 37) [Aphodius], Manitoba-Canada.
Cryptoscatomaseter umbricollis (Fall 1907: 245) [Aphodius], NM-TX-USA.
Cryptoscatomaseter utopensis (Warner and Skelley 2006: 61-62) [Aphodius].
Cryptoscatomaseter yavapai (Robinson 1946: 52) [Aphodius].

Life History. All known species are primary pocket gopher dung feeders. Although usually rare in collections, several techniques (trapping, excavation, rearing, etc.) have proven useful in sampling pocket gopher burrows for these beetles (Gordon and Skelley 2007).
Larvae. Unknown.
Status of Classification. Gordon and Skelley (2007) recognized 6, more or less, distinct species groups based on external and genitalic morphology.

Gordon, R. D., and P. E. Skelley. 2007. A monograph of the Aphodiini inhabiting the United States and Canada (Coleoptera: Scarabaeidae: Aphodiinae). Memoirs of the American Entomological Institute 79: 580 pp.
Skelley, P. E., M. Dellacasa, G. Dellacasa, and R. D. Gordon. 2007. Checklist of the Aphodiini of Mexico, Central and South America (Coleoptera: Scarabaeidae: Aphodiinae). Insecta Mundi 0014: 1-14.

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Author: Paul Skelley

Generated on: 01/MAY/08.....Last modified: 01/MAY/08
University of Nebraska State Museum - Division of Entomology