Two new species and three new records of the genus Aphelocheirus (Hemiptera: Heteroptera: Aphelocheiridae) from China

Abstract

Two new species of the genus Aphelocheirus (Hemiptera: Heteroptera: Aphelocheiridae), A. longlingensis sp. nov. from Yunnan and A. motuoensis sp. nov. from Xizang (Tibet) Autonomous Region are described in this paper. A. similaris Polhemus & Polhemus, 1989, A. nawae Nawa, 1905 and A. tuberculipes Zettel & Tran, 2009 are reported from China for the first time. A key to Chinese species of Aphelocheirus is given. Dorsal habitus photographs of the species are provided, accompanied by illustrations of male genitalic structures, inner projection and female ventral aspect of posterior abdominal segments.

Respiratory function of the plastron in the aquatic bug,Aphelocheirus aestivalis(Hemiptera, Aphelocheiridae)

“…This applies to species that never have to surface to replenish the bubble, including some beetles (Madsen, 2008(Madsen, , 2012. A. aestivalis and some other species of Aphelocheirus may be the largest plastron insects at approximately 40 mg body mass (Xie and Liu, 2014). Second, resting metabolic rates of true plastron insects are in the region of one-quarter to onehalf of the rates predicted from most insects of the same body size and temperature (Seymour and Matthews, 2013).…”

It's Not a Bug, It's a Feature: Functional Materials in Insects

“…[192] They are shaped to have a high surface-area-tovolume ratio, they have resting metabolic rates less than half of what is predicted for their size, and they are most commonly found in moving, well-aerated streams. [195] Organ-on-a-chip systems have gained popularity for their potential to accurately replicate biological processes entirely in vitro. [196] These systems, similar to the biological schemes they [189] Copyright 2011, Wiley.…”

Report on antennal sensilla ofAphelocheirus ellipsoideus(Hemiptera, Heteroptera, Aphelocheiridae)

“…The family Aphelocheiridae is distributed exclusively in the Old World and reaches its greatest species richness in the Oriental Region (Sites et al, 2011). It is represented by a single genus Aphelocheirus , with 104 species currently described in the world (Basu & Subramanian, 2016; Basu et al, 2013; Liu & Ding, 2005a, 2005b; Liu & Zheng, 1994, 2000; Nieser & Chen, 1991; Nieser & Millán, 1989; Nieser et al, 2004; Polhemus, 1994; Polhemus & Polhemus, 1989, 2013; Sites, 2005; Sites et al, 2011; Thirumalai, 2007, 2008; Tran & Nguyen, 2016; Xie & Liu, 2014, 2015; Zettel et al, 2008; Zettel, 1993, 1998, 1999a, 1999b, 2000, 2001, 2003, 2012; Zettel & Pangantihon, 2010; Zettel & Tran, 2009). Aphelocheiridae have four‐segmented antennae, the antennae in Aphelocheiridae are easily visible since they are not concealed.…”

“…Up to now, 27 species of the genus Aphelocheirus (Supporting Information: Figure ) were known from China (Liu & Ding, 2005a, 2005b; Liu & Zheng, 1994, 2000; Xie & Liu, 2014, 2015). Many species of Aphelocheiridae have both macropterous and brachypterous forms of individuals.…”