Daniel E. Perez-Gelabert

Preliminary checklist of the Orthoptera (Saltatoria) of Hispaniola

Abstract This work summarizes the preliminary taxonomic information available on the Orthoptera fauna of Hispaniola. Valid names, synonyms used in pertinent references, data on type specimens and species distributions are included. One hundred and three extant plus eight fossil species in Dominican amber are treated: Tridactylidae (1), Tetrigidae (12), Eumastacidae (10 + 1 fossil), Acrididae (20), Pyrgomorphidae (2), Tettigoniidae (22), Gryllidae (30 + 7 fossils), Anostostomatidae (3), Gryllacrididae (1), and Gryllotalpidae (2). Two genera of Tettigoniidae are recorded for the first time from the island.

Duartettix montanus, a new genus and species of high mountain grasshopper (Acrididae: Melanoplinae) from Dominican Republic

A new genus and species of acridid grasshopper Duartettix montanus Perez and Otte is described from high mountain valleys of the Cordillera Central, Dominican Republic. D. montanus is very small, brachypterous and apparently the highest altitude inhabiting acridoid grasshopper in the West Indies. The genus is placed in the subfamily Melanoplinae. This is the first record of the subfamily Melanoplinae for the Greater Antilles.

Further Investigations of Hispaniolan Eumastacoid Grasshoppers (Espagnolinae: Episactidae: Orthoptera)

Abstract The new species Espagnolopsis exaltata Perez-Gelabert & Rowell is described from the mountains north of Ocoa, Cordillera Central, Dominican Republic. Also described is the hitherto unknown adult male of Antillacris explicatrix Rehn & Rehn 1939, a relatively rare high mountain species. The variation exhibited by the most widely distributed episactid species in the island, Espagnola darlingtoni, is investigated through a comparative analysis of male and female genital features in several populations. Usually the female subgenital plate of eumastacoids shows a species-specific morphology. We find that most of the apparent variation between populations is confined to the female subgenital plate, while the males are much more homogeneous. We conclude that our sample represents a single, somewhat variable species. Additionally, the transfer of Tainacris divergentis Perez et al. 1997 to the new genus Neibamastax Rowell & Perez-Gelabert (see paper this issue) prompted the need to review the evidence for the distinctiveness of the two other species included in Tainacris. Differences are found in both the female subgenital plate and the male internal genitalia. The earlier conclusion that these populations represent different species is supported.

A new genus and species of tetrigid (Orthoptera: Tetrigidae: Cladonotinae) from Dominican Republic, Hispaniola

Abstract A new genus and species of tetrigid, Antillotettix nanus, is described from several mountain localities (1000 to 1500 m) in the Bahoruco and Central mountains of the Dominican Republic, Hispaniola. Antillotettix is characterized by a very small and rounded body, a frontal costa opened some 30° and a slightly tectate and roundly truncate pronotum that covers just over half the abdomen. It is the smallest of known Hispaniolan tetrigids.

Two new species of grasshoppers, Dellia karstica spec. nov. and Dellia maroona spec. nov. (Orthoptera: Acrididae) from the Cockpit Country, Jamaica

Abstract The acridid grasshopper genus Dellia Stål is redescribed and compared to other genera of Copiocerinae. Two new species of Dellia (Dellia karstica spec. nov. and Dellia maroona spec. nov.) from the Cockpit Country, Jamaica, are described and illustrated. General morphology and coloration indicate that D. karstica is closely related to the previously described D. gemmicula Rehn & Hebard from the Jamaican Blue Mountains.

A New Species of Martintella Artigas, 1996 from the Islands of Tobago and Trinidad (Diptera: Asilidae)

ABSTRACT The genus Martintella Artigas, 1996, is recorded from the islands of Tobago and Trinidad for the first time. M. elliptica sp. nov from Tobago and Trinidad is described and illustrated. M. elliptica is compared to M. lestes (Williston).

The status of the Espagnolinae (Rehn 1948) and other subfamilies of the Episactidae (Descamps 1973) (Eumastacoidea, Caelifera, Orthoptera), with description of two new genera, Paralethus and Neibamastax

Abstract The phallic anatomy of all the modern Hispaniolan eumastacids and of representative species of all genera of the Central American Episactinae has been examined. Two new genera, Neibamastax from the Dominican Republic and Paralethus from El Salvador, are erected to accomodate species which were found to have very divergent phallic morphology. Additionally, we have examined isolated species of the Teicophryinae and Miraculinae. A cladistic analysis of the Central American and Hispaniolan genera was performed, which divides these into two well-supported monophyletic clades, corresponding to the two areas of distribution. These we equate with the Episactinae Burr 1903 and the Espagnolinae Rehn 1948, and offer diagnoses of these two subfamilies. We present new data from the Teicophryinae which supports their inclusion in the Episactidae as well.