Pilophorus choii Josifov, 1978

Yasunaga, Tomohide, Duwal, Ram Keshari & Nakatani, Yukinobu, 2021, Reclassification of the plant bug genus Pilophorus in Japan and key to the genera and species of Japanese Pilophorini (Hemiptera: Heteroptera: Miridae Phylinae), Zootaxa 4942 (1), pp. 1-40 : 7-8

publication ID

https://doi.org/ 10.11646/zootaxa.4942.1.1

publication LSID

lsid:zoobank.org:pub:CDF398FE-B0F6-40E6-967D-FB857C1565BD

DOI

https://doi.org/10.5281/zenodo.4596031

persistent identifier

https://treatment.plazi.org/id/A16ADB37-EB03-0C79-FF47-C56279DEFE05

treatment provided by

Plazi

scientific name

Pilophorus choii Josifov, 1978
status

 

Pilophorus choii Josifov, 1978 View in CoL

( Figs 1A View FIGURE 1 , 11A View FIGURE 11 , 14 View FIGURE 14 A–D)

Pilophorus choii Josifov, 1978: 285 View in CoL (n. sp., desc.); Schuh, 2002 –2013, online catalog; Duwal et al., 2014: 261 (redesc., key); Aukema, 2018, online catalog; Yamamoto & Yasunaga, 2020: 75 (faunal list).

Material examined. JAPAN: Hokkaido: Otaru City, Estuary of Shinkawa River , N43.165, E141.227, on Quercus dentata , 18 Aug 2007, A.Yamamoto, 1♀ ( OMO) GoogleMaps ; Otaru City , Tarukawa-9-sen, 43.186, 141.269, on Quercus dentata , 6 Aug 2009, A. Yamamoto, 1♂ ( OMO) GoogleMaps . Kyushu : Oita Pref., Handa Plateau , 33.13, 131.22, 27 Jul 1995, Y. Nakatani, 1♂ ( NIAES) ( AMNH _ PBI 00380663 About AMNH ) . KOREA: Gyeonggi-do, Yangpyeonggun, Mt. Youngmun , UV light trap, 16 Jul 2009, R.K. Duwal & S. Jung, 1♂ ( SNU) .

Rediagnosis. Recognized by its moderate size; short antennal segment that is shorter than basal width of pronotum(see Table 1 for measurements of male); polished, shiny pronotum; partly interrupted, narrow median stripe of scale-like setae that are easily rubbed off ( Fig. 1A View FIGURE 1 ); narrowly clustered scale-like setae at anterior inner corner of cuneus; and C-shaped, small-sized male endosoma ( Fig. 11A View FIGURE 11 ). Dorsal habitus images available on https:// www.discoverlife.org/20/q?search= Pilophorus +choii.

Biology. The Japanese population were found to inhabit Quercus dentata , as reported for Korea ( Duwal et al., 2014) and Russian Primorsky Territory ( Kerzhner, 1988). A univoltine life cycle is assumed for P. choii and the eggs presumably hibernate.

Discussion. This species is most similar in external appearance to P. lucidus as both are associated with deciduous Quercus trees and have the similar size, short antennal segment II and shiny polished pronotum; however, the characters provided in the above key (couplet 25) will readily distinguish them.

Since only a few specimens of P. choii are currently available from Japan, its food preference or predation is yet to be tested. Fukuda et al. (2020) and Miyazaki et al. (2020) documented that the immature forms of P. lucidus , assumed to be one of the closest relative of P. choii , could develop into adults when feeding on dried red worms and brine-shrimp eggs as a diet. Therefore, P. choii is also supposed to have a carnivorous food habit.

NIAES

National Institute for Agro-Environmental Sciences

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Miridae

Genus

Pilophorus

Loc

Pilophorus choii Josifov, 1978

Yasunaga, Tomohide, Duwal, Ram Keshari & Nakatani, Yukinobu 2021
2021
Loc

Pilophorus choii

Yamamoto, A. & Yasunaga, T. 2020: 75
Duwal, R. K. & Jung, S. H. & Lee, S. H. 2014: 261
Josifov, M. 1978: 285
1978
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