Trilophidia annulata (Thunberg, 1815)

Sergeev, M. G. & Dubatolov, V. V., 2022, New data on Orthoptera distribution in the southern part of the Russian Far East, Far Eastern Entomologist 450, pp. 15-20 : 18

Trilophidia annulata (Thunberg, 1815)

MATERIAL. Khabarovsky krai: Bolshekhekhtsirsky Nature Reserve, Ussuri River,

downstream Chirki River mouth, lower sandy flood-plain with scarce vegetations, 7–8.VIII

2013, 1♂ ( V. Dubatolov); the same reserve, Bychikha settlement, 48º18'N 134º49'E ,

attracted to light, 24–25.VIII 2007, 1♂ ( V. Dubatolov); the same locality, 29–29.IX 2009 ,

1♀, 13–14.IX 2013, 1♀ ( V. Dubatolov); the same locality, short lawn, 18.IX 2013 , 1♀ ( V.

Dubatolov); the same locality, 21.IX 2014, 1♂, 28.VIII 2016, 21.IX 2018, 1♂, 1♀, 10–11.IX

2019, 2♂ ( V. Dubatolov) .

REMARKS. The century ago the species was mentioned for Korea (Ikonnikov, 1913).

Later it was found in the southern part of the Primorsky krai (Storozhenko, 1986). It occurs in the Russian part of the Changbai Mts. (Storozhenko, 2018). One can suppose that the species recently invaded the vicinity of Khabarovsk, perhaps, from the territory of Heilongjiang (NE

China) across the Ussuri River.

DISTRIBUTION. Russia: Khabarovsky krai (new record), southern part of Primorsky krai

(Storozhenko, 1986, 2018). This species widely distributed over S, SE and E Asia, from

Afghanistan and Pakistan to Japan and from NE China to the Greater Sunda Islands (Hollis,

1965). In China, it occurs in almost all parts, except high mountains, but including Heilongjiang and Xinjiang (Zheng & Xia, 1998; Bai et al., 2016). However, the records for NW China

(Xinjiang) may be based on either misidentification or incorrect labels, because this area is relatively distant from the main part of the species range and, moreover, it is characterized by very dry, desert climate.

ECOLOGY. The species is relatively common in N Korea (Kim & Puskás, 2012). In

South Asia, it can be serious pest (Hollis, 1965). Near Khabarovsk T. annulata usually occurs in both natural, such as sandy flood-plains, and transformed habitats, especially across short lawns and wastelands. One can hypothesize its wide distribution over NE China is determined by very wide and common agricultural transformation of this region as well.