New species of Pterotiltus from Cameroon, and a new genus, Parapterotiltus (Orthoptera, Acrididae, Oxyinae)

The genus Pterotiltus Karsch, 1893 currently includes 12 described species from the equatorial forests of West and Central Africa. Here, we describe two new species from lowland forests of Southern Cameroon: Pterotiltus ngoylaensis sp. nov., and Pterotiltus campoensis sp. nov. We further describe two new species and the previously undescribed female of Pterotiltus minimus Ramme, 1929 from the highland areas of West Cameroon. These highland species share a suite of characters that distinguish them from Pterotiltus; these characters include structures of both the male and female reproductive systems, tegmina not completely regressed, and generally smaller size. To accommodate these differences between the species, we erect the new genus Parapterotiltus gen. nov. with P. minimus as the type species and include in it Parapterotiltus minimoides sp. nov. and Parapterotiltus bamboutos sp. nov

Field diet of the grasshopper Abracris dilecta Walker (Orthoptera, Acrididae)

Abracris dilecta Walker, 1870 (Orthoptera, Acrididae, Ommatolampinae) ate leafs of at least 14 plant species, in the families Asteraceae, Lamiaceae, Malvales (Sterculiaceae, Tiliaceae or Malvaceae), Poaceae, Fabaceae, Verbenaceae, Aristolochiaceae, Rubiaceae and Melastomataccae. Elephantopus mollis H.B.K. (Asteraceae) and Hyptis suaveolens Poit. (Lamiaceae) comprised 50% of the diet. The diet breadth of A. dilecta was compared to that of other 11 grasshopper species of the same sub-family, with rarefaction curves. The number of plant species eaten by A. dilecta was greater than that of nine other grasshopper species of the same sub-family (Rhachicreagra spp.) but was lower then two others (Microptylopteryx hebardi Rehn, 1905 and Rhachicreagra astytophallus Jago & Rowell, 1981). This results are discussed in view of the broad geographical range and possession of developed wings by A. dilecta, which contrasts with most Ommatolampinae grasshoppers

Checklist of orthoptera caelifera from Colombia

[No abstract available