Lyctocoris Hahn, 1835

Yamada, Kazutaka, Yasunaga, Tomohide & Ichikawa, Toshihide, 2012, A new species of Lyctocoridae (Hemiptera: Heteroptera: Cimicoidea) feeding on the exuded sap of Sawtooth Oak, Quercus acutissima, in Japan, Zootaxa 3525, pp. 65-74 : 66

Lyctocoris Hahn, 1835

Lyctocoris Hahn, 1835: 19 , type species by subsequent designation by Kirkaldy 1906: 119: Cimex domesticus Schilling, 1834 (a junior synonym of Acanthia campestris Fabricius, 1794 ); Pericart, 1996: 132 (cat.).

Diagnosis. Recognized by the following diagnostic characters: Labium straight, exceeding mid coxae or reaching at least to base of abdomen; ostiolar peritreme distinctly L-shaped, joined at a sharp angle by a very fine carina which extends to the anterior margin of metapleura; pygophore asymmetrical; parameres asymmetrical, subequal in size, without groove; apex of aedeagus modified into acus; female with genital apophysis on middle of anterior margin of abdominal sternum VII; ovipositor laciniate, well-developed; spermatheca absent; seminal conceptacles formed by the epithelium of the genital duct.

Remarks. Monophyly of Lyctocoris is well supported by the following synapomorphies: Left paramere lacking its function as a copulatory organ; apex of aedeagus modified into acus; female with genital apophysis internally on middle of anterior margin of abdominal sternum VII; and seminal conceptacles formed by the epithelium of the genital duct. These characters also warrant the Lyctocoridae as an independent family in the superfamily Cimicoidea ( Schuh & Štys 1991; Schuh & Slater 1995).

The East Asian fauna of Lyctocoris is now represented by six species: L. beneficus ( Hiura, 1957) , L. hasegawai Hiura, 1966 , L. kurentzovi Kerzhner, 1979 , L. obscurus Kerzhner, 1979 , L. variegatus Péricart, 1969 , and L. zhangi Bu & Zheng, 2001 ( Péricart 1996; Bu & Zheng 2001). Most of these species occur in warm temperate to cold temperate zones, except for a single subtropical inhabitant, L. hasegawai , that appears to be endemic to Taiwan.