A revision and phylogenetic analysis of Stoiba Spaeth 1909 (Coleoptera, Chrysomelidae).

Stoiba Spaeth, 1909 is revised with a phylogenetic analysis of 38 adult morphological characters for nine Stoiba species and 11 outgroup species (Mesomphaliini, Ischyrosonychini, and Hemisphaerotini). Four Cuban species of Stoiba were not sampled. Parsimony analysis located the four most parsimonious trees. The strict consensus (CI=0.59, RI=0.78, Steps=83) resolved the monophyly of Stoiba. The monophyly of Stoiba is supported by pale yellow antennae, antennomere VII broader than its length, and rounded basal line of pronotum. An illustrated key to ten species of Stoiba is provided along with a distribution map of 11 species. Stoiba rufa Blake is synonymized with Stoiba swartzii (Thunberg) by a morphological comparison which includes female genitalia.

Male and female reproductive systems of Stolas conspersa (Germar) (Coleoptera, Chrysomelidae, Cassidinae)

Male and female reproductive systems of Stolas conspersa (Germar) (Coleoptera, Chrysomelidae, Cassidinae). The male and female reproductive systems of Stolas conspersa (Germar, 1824) are described and illustrated for the first time. The male reproductive system shows no difference from the subfamily pattern, which is a tubular well-developed median lobe; "Y", "V" or T-shaped tegmen; reduced pygidium; internal sac membranous and tubular; flagellum generally well developed needle-like structured and gastral spiculum absent. However, the female differs from the pattern proposed for Stolas in two aspects: ovary with 28 ovarioles and a reduced ampulla with indistinct velum.

Sistema reprodutivo masculino e feminino de Stolas conspersa (Germar) (Coleoptera, Chrysomelidae, Cassidinae). O sistema reprodutivo do macho e fêmea de Stolas conspersa (Germar, 1824) são descritos pela primeira vez. Neste estudo, foi observado que o macho não diverge do padrão proposto para a subfamília, que é edeago tubular e bem desenvolvido; tégmen em forma de "Y", "V" ou "T"; pigídio reduzido; saco interno membranoso e tubular; flagellum geralmente bem desenvolvido, em forma de agulha e espículo gastral ausente. Por outro lado, o sistema reprodutor feminino diverge do padrão usual proposto para o gênero Stolas em dois aspectos: ovário com 28 ovaríolos e ampola reduzida com velum não distinto.