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4 new species of water-gliding rove beetles discovered in Ningxia, China
Date:2/25/2013

enus biwenxuani, was found on shore and is therefore considered to be a water glider.

Steninae are also specialist predators of small invertebrates such as collembola, which are frequently found in leaf litter. What is fascinating is the special hunting technique used by those beetles to catch their prey. Species in the genus Stenus can eject some of its mouth parts using blood pressure. The thin rod of the labium ends in a pair of pads with bristly hairs and hooks, called paraglossa, and between these hairs are small pores that exude an adhesive glue-like substance, which sticks to prey to secure a perfect catch and no escape.

Dr. Liang Tang from the Department of Biology, Shanghai Normal University, comments: "As far as the Steninae are concerned, Ningxia Autonomous Region is one of the most poorly explored regions, with merely two species being recorded until 2008. In the summer of 2008, a team surveyed the insect fauna of the Liupan Shan in southern Ningxia and collected a large number of Steninae. In this paper, we report the results of the study, which includes two new Stenus and two new Dianous species, and new province records for eleven Stenus species."


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Contact: Dr. Liang Tang
monkey_zzz1980@163.com
86-216-432-1011
Pensoft Publishers
Source:Eurekalert  

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4 new species of water-gliding rove beetles discovered in Ningxia, China
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