关键词:
Phasmida
phasmids
stick insects
Anareolatae
Phasmatidae
Platycraninae
Stephanacridini
Sadyattes
Eucarcharus
new species
new synonyms
eggs
descriptions
keys
Philippines
摘要:
The genus Sadyattes St & aring;l, 1875 is a poorly understood clade of stick insects of the subfamily Platycraninae and tribe Stephanacridini, that currently comprises three species from Borneo as well as type-species S. borrii St & aring;l, 1875 whose locality is as yet a mystery. In its present recognition the genus is here shown to be paraphyletic and research has revealed that a number of species currently attributed to other genera, one of which is not even closely related, actually belong in Sadyattes. To elucidate these shortcomings a taxonomic review of Sadyattes at the species level is presented along with a generic redescription. Sadyattes is distributed throughout the land masses of the Sunda Shelf (Borneo, Peninsular Malaysia, Java and Sumatra with some of its surrounding islands) and the Philippine Islands. Differential diagnoses as well as notes on intraspecific variability and the distributions are provided for all known species, including new descriptions and combinations, with most species also illustrated. Keys are presented to distinguish females and males. The genus Eucarcharus Brunner v. Wattenwyl, 1907 is found to be a synonym of Sadyattes and thus synonymised (syn. nov.). The two Philippine species previously contained in Eucarcharus, E. fallax Brunner v. Wattenwyl, 1907 and E. feruloides (Westwood, 1859), are automatically transferred to Sadyattes, which results in two new generic combinations (comb. nov.). Four species are transferred to Sadyattes from other genera, which results in another four new generic combinations (comb. nov.): the Bornean S. decoris (Seow-Choen, 2016) and S. incertus (Brunner v. Wattenwyl, 1907) from Peninsular Malaysia, Bangka Island and the Andaman Islands from the genus Phobaeticus Brunner v. Wattenwyl, 1907 (Clitumninae: Pharnaciini), the Bornean S. nigricornis (Redtenbacher, 1908) from the genus Pharnacia St & aring;l, 1877 (Clitumninae: Pharnaciini), and the Philippine S. leytensis (Zompro, 1997) from the genus