Trichrous jaegeri Chevrolat, 1858

Woodley, Steven W. Lingafelter Norman E., 2024, New species, new combinations, synonymies, and nomenclatural discussion for Hispaniolan longhorned beetles (Coleoptera: Disteniidae, Cerambycidae), Insecta Mundi 2024 (69), pp. 1-41 : 19

Trichrous jaegeri Chevrolat, 1858

( Fig. 13 )

Trichrous jaegeri Chevrolat 1858: 211

Trichrous bicolor Fisher 1932: 70 . Preoccupied, primary homonym of Trichrous bicolor Sallé, 1856 , new synonym Trichrous fisheri Monné and Giesbert 1992: 251 . New name for Trichrous bicolor Fisher, 1932 , new synonym

Remarks. As discussed in Guerrero (2001) and shown on Bezark (2024), the primary types of both Trichrous jaegeri Chevrolat and Trichrous bicolor Fisher show no structural differences. Both were collected from Hispaniola: Trichrous bicolor was collected from Port-au-Prince, Haiti and Trichrous jaegeri was collected from “Santo Domingo”. The only apparent differences are that the scape of the syntype of T. jaegeri is dark brown to black and the scape of the holotype of T. bicolor is red and the tibiae of T. jaegeri appear dark while those of T. bicolor appear at least partially red. Since this coloration is known to be variable in other species of Dichophyiini , I propose that the species concept should be broadened to encompass the variation and that T. bicolor Fisher and its replacement name, T. fisheri Monné and Giesbert , are new synonyms of T. jaegeri Chevrolat. It is possible that upon further revisionary work in this group, other species (such as the Cuban T. brevicornis Zayas and the Bahamian T. prasinus Cazier and Lacey ) should also be synonymized with T. jaegeri , and this whole complex would be better compared to Trichrous dimidiatipennis (Chevrolat) which could ultimately be the senior name for all these species, but that is beyond the scope of this paper which is focused on Hispaniolan species.

Figures

Figure 13. Variation found in Trichrous jaegeri Chevrolat.