Abstract
We provide a synopsis of the Sumatran species in the scarab beetle genus Peltonotus Burmeister (Scarabaeidae: Dynastinae: Cyclocephalini), describe a new species of Peltonotus from Sumatra, and describe the male of P. cybele Jameson & Wada from Sumatra (previously known only by the female holotype). To enable identification, we include a key to the five Sumatran species of Peltonotus, comparative images and diagnoses for all species, and temporal and geographical distributions.
Highlights
The southeast Asian scarab beetle genus Peltonotus Burmeister (Scarabaeidae: Dynastinae: Cyclocephalini) is associated with aroid flowers (Araceae) (Jameson and Wada 2004, 2009; Grimm 2009)
Morphological characters used for species identification are defined in Jameson and Wada (2004)
Images were edited in Adobe Photoshop CS2
Summary
The southeast Asian scarab beetle genus Peltonotus Burmeister (Scarabaeidae: Dynastinae: Cyclocephalini) is associated with aroid flowers (Araceae) (Jameson and Wada 2004, 2009; Grimm 2009). With the addition of the species that we describe the genus Peltonotus includes 25 species, including the following species that are distributed in Sumatra: P. animus Jameson & Wada 2009, P. cybele Jameson & Wada 2009, P. gracilipodus Jameson & Wada 2004, P. sisyrus Jameson & Wada 2004, and P. talangensis Jameson & Jakl, sp. We provide a synopsis of the five Sumatran species in the genus Peltonotus, including a key to species, comparative images, species diagnoses, the description of a new species, information on natural history, and distribution maps. With the inclusion of the new species and the male of P. cybele, only one species of Peltonotus from Sumatra lacks known females (P. animus). The males of all species from Sumatra are known This is contrasted with our lack of knowledge for many species of Peltonotus in which identification is complicated by the absence of associated male and female specimens. Specimens have been collected from February to April, June to July, and October to November
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