Abstract
New data on the distribution, ecology, and phenology of Helophorus pitcheri Angus, 1970, previously known from three type specimens from Southern Siberia and a single find from China, are presented. The species is recorded for the first time from the Russian Far East (Amur Region and Khabarovsk Territory). Biotopes are indicated, and a list of Hydrophiloidea species which was found with H. pitcheri is given. Presumably, the species is an acidophilic stagnophile. Adults were found in June and August.
Highlights
H. pitcheri was not included in the ‘Key to Insects of the Far East of the USSR’ (Shatrovskiy, 1989) — as a species known at that time only from Southern Siberia
Among the species observed with H. pitcheri are one mesophyll-detritophile (Cercyon korbianus) and 8 hydrophiles: 2 eurytopic stagnophiles (Hydrobius fuscipes and Helophorus poppii) and 6 acidophilic stagnophiles (Helophorus tuberculatus, H. nanus, H. orientalis, Crenitis apicalis, Anacaena lutescens, and Laccobius cinereus)
New data were obtained on Helophorus pitcheri, previously known for three specimens of the type series from Southern Siberia and a single specimen from the China
Summary
Г. Нові дані про маловідомий вид водолюбових твердокрилих Helophorus pitcheri Angus, 1970 (Coleoptera: Hydrophiloidea: Helophoridae). Г. Новые данные о малоизвестном виде водолюбовых жесткокрылых Helophorus pitcheri Angus, 1970 (Coleoptera: Hydrophiloidea: Helophoridae). G. New data on the little-known species of the water scavenger beetle Helophorus pitcheri Angus, 1970 (Coleoptera: Hydrophiloidea: Helophoridae).
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