Hemirrhagus is a
genus of
Mexicantarantulas that was first described by
Eugène Louis Simon in 1903.[3] It is considered a senior synonym of Spelopelma.[2] Species of the genus Hemirrhagus are 5 to 12 cm long, usually black in colour, the
urticating hairs on the
opisthosoma are arranged in one dorsomedian patch, two dorsal paramedian patches, or two lateral patches. It is unique amongst the
theraphosine genera because of the
retrolateralcoxal heels, the shape of the male
palpal bulb, and the urticating hairs on the abdomen are reduced or completely missing.[4] It is the only genus with epigean,
troglophile and
troglobitic species.
^
abPérez-Miles, F.; Locht, A. (2003). "Revision and cladistic analysis of the genus Hemirrhagus Simon, 1903 (Araneae, Theraphosidae, Theraphosinae)". Bulletin of the British Arachnological Society. 12: 366.
^Jorge I. Mendoza Marroquín, "Taxonomic revision of Hemirrhagus Simon, 1903 (Araneae: Theraphosidae, Theraphosinae), with description of five new species from Mexico", Zoological Journal of the Linnean Society, Volume 170, Issue 4, 1 April 2014, Pages 634–689,
doi:
10.1111/zoj.12112