Golofa imbellis Bates, 1888
Golofa imbellis Bates, 1888 (original combination).

Distribution: Guatemala and Costa Rica. (Ratcliffe 2003).

Identification: Bates (1888), Hwang (2011), and Ratcliffe (2003).

Life History: This species is exceedingly rare. Although Bates based his description on 17 specimens from Volcan Irazu and Rio Sucio there apparently have been only a few specimens taken since. This species has been collected in montane wet forests on Irazu at elevations of 1,875-2,200 meters. It is cold at those elevations on Volcan Irazu, and there probably has not been a great deal of collecting done there at these high elevations. Moreover, Irazu has been severely deforested as a result of volcanic eruptions in the 1960s and human disturbance, and Golofa habitat has been reduced. High elevation (contributing to less collecting), combined with disappearing habitat, accounts for the few records for G. imbellis. Whether it still exists in any numbers in nature is unknown. (Ratcliffe 2003).

Larvae: Not described.

References:
Bates, H. W. 1888. Pectinicornia and Lamellicornia, Family Dynastidae. In: Godman, F. D. and O. Salvin (Editors), Biologia Centrali-American. Insecta, Coleoptera. Volume 2, Part. 2: 296–342.

Hwang, S. -M. -R. 2011. The Dynastini of the World (Coleoptera: Scarabaeidae: Dynastinae). Nature & Ecology (Academic Series), Volume 4. Seoul, South Korea. 368 pp.

Lachaume, G. 1985. Dynastini 1: Dynastes – Megasoma – Golofa. Les Coleopteres du Monde 5. Sciences Nat, Venette, France. 85 pp, 29 plates.

Ratcliffe, B. C. 2003. The dynastine scarab beetles of Costa Rica and Panama (Coleoptera: Scarabaeidae: Dynastinae). Bulletin of the University of Nebraska State Museum 16: 1-506.