Synonyms and other taxonomic changes
, 1887). Synonyms, etc.:
Anthrax effrena Coquillett, 1887 (Type locality Arizona)
Explanation of Names
Latin effrenus (effrēnus) unbridled, unrestrained (Latin dictionary).
12 mm body length (Coquillett, 1887)
Description from Painter and Hall (1960):
A southwestern and Mexican species which has the abdominal ground color broadly marked with orange, the black color usually triangular in shape and confined to the dorsum. The hair on the abdomen is predominately black; on the sides there is black hair from segments two to six. The wings are evenly colored with dark brown, the veins at the base of the wing are bright orange. The second submarginal cell is nearly entirely hyaline and the hyaline spot in the discal cell is quite definite.
Southwestern United States into Mexico: southwestern Oklahoma, central Texas, west to southern California (Painter and Hall, 1960); + southern Nevada (BugGuide record).
Coquillett, D.W. 1887. Monograph of the species belonging to the genus Anthrax from America north of Mexico. Trans. Amer. Ent. Soc. 14
: 159-182 (BHL link
Coquillett, D.W. 1892. Revision of the Species of Anthrax from America North of Mexico. Trans. Amer. Ent. Soc. 19
: 168-187 (BHL link
Painter, R. H. and J. C. Hall (1960). A monograph of the genus Poecilanthrax
(Diptera: Bombyliidae). (Read online