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Systematics, distribution, and host specificity of Amblyopinus Solsky 1875 (Coleoptera Staphylinidae) in Mexico and Central America

1995; Firenze University Press; Volume: 8; Issue: 2 Linguagem: Inglês

10.1080/03946975.1995.10539295

1970-9528

James S. Ashe, Robert M. Timm,

Coleoptera: Cerambycidae studies

The Mexican and Central American species of Amblyopinus Solsky 1875, adults of which are usually found in the fur of rodents, are revised. All species are fully described, and keys and illustrations of diagnostic features are provided to aid in their identification. A substantial quantity of new host and distributional data is provided. Five species, one of which consists of two subspecies, are known from Mexico and Central America Amblyopinus emarginatus Seevers 1955 (sanborni group) occurs in the montane regions of northwestern Panama and Costa Rica where it occurs on Oryzomys albigularis. In addition, four species and two subspecies of the jelskii group occur in Central America and Mexico: A. isabellae Barrera 1966, Sierra Madre del Sur in Mexico (host[s] various species of Peromyscus and Neotoma); A. barrerai Zaragoza Caballero & Sánchez Hernández 1993, Sierra Madre de Oaxaca in Mexico (host[s], Peromyscus species, especially P. melanocarpus); A. schmidti schmidti Seevers 1944, highlands of Chiapas and Guatemala (host, primarily Peromyscus guatemalensis); A. schmidti bolivari Barrera et al. 1960, Transvolcanic Sierra of Mexico (host, primarily Microtus mexicanus); A. titoni Barrera 1966, highlands of northwestern Panama and Costa Rica (host[s], Peromyscus nudipes and Reithrodontomys creper). The hosts of A. emarginatus in both Central and South America are complex-penis cricetines, primarily Oryzomys albigularis. However, the Mexican and Central American members of the jelskii group exhibit two major host transfers: to simple-penis peromyscine rodents (A. isabellae, A. barrerai, A. s. schmidti, A. tipitoni); and, to microtine rodents of the genus Microtus (A. s. bolivari). All five taxa of the jelskii group have allopatric ranges in different mountain systems. Only A. tiptoni and A. emarginatus have sympatric ranges in the montane regions of northwestern Panama and Costa Rica, but these two species are in different species groups and live on different hosts.