A new genus of Phengodidae (Coleoptera) from the Neotropical Region

Cleicosta, a new genus of Phengodidae containing two new species, C. equatoreana sp. nov., and C. monaguense sp. nov., are described. Additionally, a new combination for Cenophengus breviplumatusWittmer, 1976 is included. Cleicosta gen. nov., is the thirty-eighth genus assigned to the beetle family Phengodidae in the new world and is also the most morphologically similar to Cenophengus LeConte, 1881. Both genera exhibit clearly separated tentorial pits, vertical frons and simple tarsomeres. In Cleicosta gen. nov., however, the antennal rami are 1.5 times longer than the corresponding antennomere, the pronotum is subquadrate and the elytra are short, reaching the first or second abdominal segment. In addition, it presents an aedeagus with lateral lobes slender, parallel exteriorly, narrowed medially to toothless apex.

A new genus of Phengodidae (Coleoptera) from the Neotropical Region

Cleicosta, a new genus of Phengodidae containing two new species, C. equatoreana sp. nov., and C. monaguense sp. nov., are described. Additionally, a new combination for Cenophengus breviplumatusWittmer, 1976 is included. Cleicosta gen. nov., is the thirty-eighth genus assigned to the beetle family Phengodidae in the new world and is also the most morphologically similar to Cenophengus LeConte, 1881. Both genera exhibit clearly separated tentorial pits, vertical frons and simple tarsomeres. In Cleicosta gen. nov., however, the antennal rami are 1.5 times longer than the corresponding antennomere, the pronotum is subquadrate and the elytra are short, reaching the first or second abdominal segment. In addition, it presents an aedeagus with lateral lobes slender, parallel exteriorly, narrowed medially to toothless apex.(AU)

A subadult maxilla of a Tyrannosauridae from the Two Medicine Formation, Montana, United States

Daspletosaurus is a Campanian genus of Tyrannosauridae from North America. This genus occupied the same geographic area of Albertosaurus, but remains of Albertosaurus are more abundant than Daspletosaurus. Here is described a subadult maxilla (AMNH FARB 5477) of Daspletosaurus sp. from Montana (USA) and possibly from the Two Medicine Formation. The description is based on Carr (1999) that described cranial ontogenetic variations in tyrannosaurids. The maxilla belongs to the ontogenetic Stage 3 sensu Carr (1999), in which the maxilla is thick, the lateral surface of the bone well sculptured, and the maxillary fenestra is subcircular and well separated from the anterior edge of antorbital fossa. Possibly there were more than one species of Daspletosaurus and the locality of the here described subadult specimen suggests that Daspletosaurus species occurred more southern than Albertosaurus.

Daspletosaurus é um gênero de Tyrannosauridae do Campaniano da América do Norte. Esse táxon ocupou a mesma área geográfica que Albertosaurus, no entanto restos de Albertosaurus são mais abundantes que Daspletosaurus. Aqui é descrito um maxilar de um indivíduo sub-adulto (AMNH FARB 5477) do gênero Daspletosaurus sp. de Montana (EUA) e possivelmente da Formação Two Medicine. A descrição é baseada em Carr (1999) que descreveu a variação ontogenética craniana em tiranossaurídeos. O maxilar foi reconhecido como estágio ontogenético 3 de Carr (1999), o qual possui fenestra maxilar sub-circular com grande distância a partir da borda anterior da fossa anterorbital, e maxilar robusto com superfície lateral bem esculpida. Possivelmente existiram mais de uma espécie de Daspletosaurus e a localidade do espécime sub-adulto sugere que essa espécie de Daspletosaurus viveu mais ao sul Albertosaurus.

A subadult maxilla of a Tyrannosauridae from the Two Medicine Formation, Montana, United States

Daspletosaurus is a Campanian genus of Tyrannosauridae from North America. This genus occupied the same geographic area of Albertosaurus, but remains of Albertosaurus are more abundant than Daspletosaurus. Here is described a subadult maxilla (AMNH FARB 5477) of Daspletosaurus sp. from Montana (USA) and possibly from the Two Medicine Formation. The description is based on Carr (1999) that described cranial ontogenetic variations in tyrannosaurids. The maxilla belongs to the ontogenetic Stage 3 sensu Carr (1999), in which the maxilla is thick, the lateral surface of the bone well sculptured, and the maxillary fenestra is subcircular and well separated from the anterior edge of antorbital fossa. Possibly there were more than one species of Daspletosaurus and the locality of the here described subadult specimen suggests that Daspletosaurus species occurred more southern than Albertosaurus.(AU)

Daspletosaurus é um gênero de Tyrannosauridae do Campaniano da América do Norte. Esse táxon ocupou a mesma área geográfica que Albertosaurus, no entanto restos de Albertosaurus são mais abundantes que Daspletosaurus. Aqui é descrito um maxilar de um indivíduo sub-adulto (AMNH FARB 5477) do gênero Daspletosaurus sp. de Montana (EUA) e possivelmente da Formação Two Medicine. A descrição é baseada em Carr (1999) que descreveu a variação ontogenética craniana em tiranossaurídeos. O maxilar foi reconhecido como estágio ontogenético 3 de Carr (1999), o qual possui fenestra maxilar sub-circular com grande distância a partir da borda anterior da fossa anterorbital, e maxilar robusto com superfície lateral bem esculpida. Possivelmente existiram mais de uma espécie de Daspletosaurus e a localidade do espécime sub-adulto sugere que essa espécie de Daspletosaurus viveu mais ao sul Albertosaurus.(AU)