Investigation and Analysis on Diversity of Lucanidae spp. in Fanjing Mountain National Nature Reserve

Lucanidae spp. in Fanjing Mountain National Nature Reserve were collected and investigated. A total of 65 specimens were examined. They belong to 26 species( including subspecies) in 13 genera. The richness reached 41. 53%,with obvious diversity characteristic.According to the survey results,the vertical distribution of Lucanidae spp. in Fanjing Mountain was divided into foothill belt,low mountain belt,low-middle mountain belt,middle mountain belt and sub-alpine belt.

Taxonomic notes on some species of Neolucanus Thomson(Coleoptera: Lucanidae) from China

As a part of ongoing investigations on Neolucanus from Chinese fauna, N. swinhoei hengshanensis Ichikawa ＆ Fujita, 1987 is confirmed as a junior synonym of N. imitator Kriesche, 1935 based on the types examination. Holotype of the little-known species of N. tao Kriesche, 1935 and the male genitalia are illustrated for the first time, in comparison with the sympatric species of N. guangxi Schenk, 2009. Wrong diagnoses of N. nitidus （Saunders, 1854） are pointed out in two widely used books published by Japanese researchers. In order to correct these errors, type specimen of this species and its intraspecific variations are exhibited, with brief discussion on its problematic subspecies. The poorly known species ofN. pallescens Leuthner, 1885 is redescribed with the discovery of its false type specimen. All of the type habitus, figures of male genitalia including female genitalia are given.

Taxonomic revision of Prosopocoilus gracilis(Saunders,1854) and its allied species from China(Coleoptera:Lucanidae)

Prosopocoilus gracilis （Saunders, 1854） and its seven allied species from China are revised. Lectotype, paralectotypes of P. gracilis （Saunders, 1854） and P. denticulatus （Boileau, 1901） are designated. The doubtful species, P. piceipennis （Westwood, 1855） is evidently confirmed as a valid species with verification of its type depository. Two highly similar species, P. crenulidens （Fairmaire, 1895） and P. denticulatus （Boileau, 1901） are compared in detail for correcting longstanding wrong diagnoses of them. P. similis Schenk, 2009 is illustrated with male genitalia firstly. Two recently-published species, P. andreasi Schenk, 2009 and P. katsurai Fujita, 2010 are treated as new junior synonyms. All the five valid species in this paper are redescribed, with illustrations of adult （including type） habitus, male and female genitalia if they are available. A key to large males is provided for identifying them briefly.

New synonymies and records of the stag-beetle genus Aegus Mac Leay from Chinese fauna(Coleoptera:Lucanidae)

Four new synonyms in the stag-beetle genus Aegus MacLeay from Chinese fauna are proposed and discussed based on their type specimens： A. pichoni Didier 1931, syn. nov. = A. laevicollis Saunders 1854; A. beauchenei Boileau 1902, syn. nov. and A. caprinus Didier, 1928, syn. nov. =A. taurus Boileau, 1899; A. dispar Dider 1931, syn. nov. =A. kuangtungensis Nagel, 1925. A species checklist with fifteen species of this genus from China is given, including two new record species, A. labilis Westwood, 1864 from Xizang and A. coomani Didier, 1926 from Guangxi.

Electraesalopsis beuteli gen. & sp. nov., the first lucanid beetle from the Cretaceous Burmese amber(Coleoptera: Scarabaeoidea)

Absract The first stag beetle found in Cretaceous Myanmar amber, Electraesalopsis beuteli Bai, Zhang ＆ Qiu gen. ＆ sp. nov., is described and illustrated on the basis of one well-preserved specimen. This specimen provides more detailed morphological characters compared with compression fossils, e.g. the highly setose antennae and the punctured elytra. However, the systematic position of the new genus is still questionable and we provisionally place it as Lucanidae incertae sedis. In addition, the discovery of Electraesalopsis Bai, Zhang ＆ Qiu gen. nov. also indicates that there is very high biodiversity in Burmese amber. The new discoveries in future studies on Burmese amber will provide more information and improve our knowledge of biogeography and early evolution of the Lucanidae.