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This species is very similar to some specimens of Calocosmus nigritarsis and Calocosmus robustus with regard to dorsal coloration, size, and proportions. It is distinguished from them by having fulvous tibiae and mostly fulvous tarsi (tibial apex and tarsi, at least, dark reddish-brown to black in Calocosmus nigritarsis and Calocosmus robustus); more distinctly fulvous annulate antennomeres (at least 4–7), and a dense vestiture of ashy pubescence on the pronotum and elytra of fresh specimens (less conspicuous or absent in other species).
This species has some external sexual dimorphism. Females are broader, have more pronounced lateral and dorsal pronotal swelling, and have less pronounced elytral humeri than males.
New distributional data
Dominican Republic, Santo Domingo Province, Puerto Vaca, Sierra Prieta, 18°38'N, 69°57'W, 27 May 2004, R. H. Bastardo (1 specimen, USNM); Dominican Republic, La Altagracía Province, Parque Nacional del Este, Boca de Yuma, 18°21.508'N, 68°36.956'W, 3–20 m, 27 June 2005, M. L. Chamorro (1 specimen, USNM); Dominican Republic, San Cristóbal Province, Las Desanparados, San Cristóbal, August, 1987 (1 specimen, USNM); Dominican Republic, La Vega, 5.1 km. N. Manabao, 5 June 1994, R. Turnbow (1 specimen, RHTC); Dominican Republic, La Vega Province, Constanza, 17 July 1996, R. Turnbow (1 specimen, RHTC); Dominican Republic, La Vega, 2 km. N Jarabacoa, 25 May 1992, R. Turnbow (1 specimen, RHTC).
- Lingafelter, S; 2013: Hispaniolan Hemilophini (Coleoptera, Cerambycidae, Lamiinae) ZooKeys, 258: 53-83. doi