Synonyms and other taxonomic changes
Amblycheila Say, 1830
Chaleposomus Chaudoir 1861 (Unjustified replacement name)
Explanation of Names
From ambly-, Greek blunt or dull, plus Greek cheilos, lip (Internet searches).
Five species occur north of Mexico, with two additional species known from Mexico. (1)
One of the Mexican species, Amblycheila halffteri
, is sometimes cited as occurring in Texas (i.e. (2)
), but it seems to be restricted to Mexico.
W. Horn, 1903
Another species, Amblycheila katzi
, was recently described from Texas (Duran and Roman, 2019).
More than 20 mm in length. Mandibular scrobe with several long setae. Inflexed part of elytron coarsely punctate. Male sternum 7 with posterior margin entire.
Key to species: (from (1)
1a. Larger sized (29-36 mm), occurring east of Rockies .... 2
1b. Smaller (20-28 mm), occurring west of Rockies .... 3
2a. Single row of punctures between two inner elytral carina; south Texas .... A. hoversoni
2b. Rows of punctures across entire elytra; Great Plains from west Texas to South Dakota, not found in south Texas .... A. cylindriformis
3a. Elytron usually with single carina, surface dull black; central & southeast Arizona .... A. baroni
3b. Elytron with three carina, surface shiny black; not in southeast Arizona .... 4
4a. Southwest Utah to California, in the intermontane valleys of the Rocky Mountains .... A. schwarzi
4b. Northern New Mexico, southeast Utah (3)
, and southwest Colorado, to central Arizona .... A. picolominii
Primarily Southwestern U.S. (1)
, with A. cylindriformis occurring as far north as the Dakotas.
Each species seems to be habitat specific, with non-overlapping ranges. (1)
These flightless tiger beetles are nocturnal, they spend the daylight hours in self-constructed burrows or rodent burrows. (4)
They are not attracted to lights. (1)
Pearson et al., p. 48 (1)
Gage, E.V. 1991. Description of a new species of Amblycheila from Texas with additional notes. (Coleoptera: Cicindelidae). Cicindelidae Bulletin of Worldwide Research 1(1)(l990): 1-10.
Sumlin, W.D. 1991. Studies on the Mexican Cicindelidae II: two new species from Coahuila and Nuevo Leon (Coleoptera). Cicindelidae Bulletin of Worldwide Research, 1: 1-6.
Duran DP, Roman SJ (2019) A new petrophilous tiger beetle from the Trans-Pecos region of Texas and revised key to the genus Amblycheila (Coleoptera, Carabidae, Cicindelinae). ZooKeys 893: 125-134. https://doi.org/10.3897/zookeys.893.47059