TL;DR: This paper reports the collecting of adult beetles and third-instar larvae of Coelocorynus desfontainei Antoine, 1999 in Cameroon and provides new data on the biology of this high-altitude Afromontane genus and proposes that the Trichiini subtribe Cryptodontina is a sister group of the Valgini: Valgina, represented by Valgus.
Abstract: This paper reports the collecting of adult beetles and third-instar larvae of Coelocorynus desfontainei Antoine, 1999 in Cameroon and provides new data on the biology of this high-altitude Afromontane genus. It also presents the first diagnosis of this genus based on larval characters and examination of its systematic position in a phylogenetic context using 78 parsimony informa- tive larval and adult characters. Based on the results of our analysis we (1) support the hypothesis that the tribe Trichiini is paraphy- letic with respect to both Valgini and the rest of the Cetoniinae, and (2) propose that the Trichiini subtribe Cryptodontina, represented by Coelocorynus, is a sister group of the Valgini: Valgina, represented by Valgus. The larvae-only analyses were about twofold better than the adults-only analyses in providing a phylogenetic resolution consistent with the larvae + adults analyses. Only one of the ten clades was consistently supported by the analyses of both the larval and adult datasets, while the remaining nine were invariably strongly supported by one but not the other analysis, thus highlighting the importance of employing different data so urces.
TL;DR: It is suggested that Stripsipher is a member of the clade composed of Valgini, Trichiini and Cryptodontini, with key differences found on the epipharynx.
Abstract: Based on the study of newly accessible type material, Stripsipher drakensbergi Ricchiardi, 1998, is demoted to a junior synonym of Stripsipher jansoni Peringuey, 1908. The genus Stripsipher Gory & Percheron, 1833, thus, currently includes 12 species, but for none of these are larval stages and/or pupae currently known. The immature stages of Stripsipher orientalis Ricchiardi, 2008 and Stripsipher jansoni are described here for the first time and updated observations on distribution and ecology of both species are provided. Morphological affinities of Stripsipher with other Trichiini larvae are presented and the main diagnostic differences discussed. The larvae of both species are very similar to those of other representatives of the tribe Trichiini, with key differences found on the epipharynx. Based on the morphology of larvae and adults, it is suggested that Stripsipher is a member of the clade composed of Valgini, Trichiini and Cryptodontini.
TL;DR: The reported Eocene beetle is one of the oldest members of the subfamily Cetoniinae and also the earliest fossil record of the tribe Trichiini; the first known representative of thesubfamily in Baltic amber; the largest known beetle fossilized in amber; and an unique example of mineralized fossil included in amber.