Coridius ianus (Fabricius, 1775)

Boyane, Swapnil S., Sen, Sandeep, Priyadarsanan, Dharma Rajan, Thunga, Pavan Kumar, Joshi, Nikhil U. & Ghate, Hemant V., 2024, Integrative taxonomy of the genus Coridius Illiger, 1807 (Hemiptera: Heteroptera: Dinidoridae) reveals hidden diversity and three new species from North-East India, PLoS ONE (e 0298176) 1807 (7), pp. 1-46 : 26-28

Coridius ianus (Fabricius, 1775) ( Figs 5H, 6H, 9H, 10H, 11H and 12H).

Cimex ianus Fabricius, 1775: 714 ; 1781: 357; 1787: 295.

Cimex janus Fuessly, 1778: 163 ; Goeze, 1778: 247; Gmelin, 1790: 2152.

Cimex surinamensis Goeze, 1778: 232 ; Gmelin, 1790: 2134. Synonymized by Atkinson, 1889.

Cimex afer Drury, 1782: 66 , 67, pl. 46, Fig 7. Synonymized by Fabricius, 1794: 107.

Cimex danus [sic] Fabricius, 1794: 107; wolff, 1800: 13, pl. 2, Fig 13.

Cimex surinamensis Gmelin, 1789: 2134 . Synonymized by Atkinson, 1889: 88.

Edessa ianus Fabricius, 1803: 151 .

Coridius ianus llliger, 1807: 361.

Pentatoma janus Lepeletier & Serville, 1825: 56 .

Aspongopus janus Laporte, 1833: 58 ; Burmeister, 1835: 352; westwood, 1837: 6; Amyot & Serville, 1843: 173, 174; Herrich-Schäffer, 1844: 78, Fig 747; Dallas, 1851:348; Dohrn, 1860: 401; Mayr, 1866: 70; walker, 1868: 482; Distant, 1879: 45; Atkinson, 1889: 88, 89; Kirby, 1892: 88; Lethierry & Severin, 1893: 237; Distant, 8331901a: 823; 1902b: 104; 1902: 281, 282, Fig 179; Maxwell-Lefroy, 1909: 313; Mann, 1911: 1166, 1167, 2 Figs; Fletcher, 1917: 57, 289; 1921: 189; Singh-Pruthi, 1925: 148, pl. 9, Fig 27; Ayyar, 1933: 17, Fig 14; Chatterjee, 1934: 27; Kathuria et al., 1975: 31–33; Behura & Das, 1977: 49–60; Behura et al., 1978: 55–66; Dhiman, 1981: 180, 181; Singh & Narain, 1984: 259–267; Mishra & Sharma, 1990: 480, 481; Sharma, 1990: 1329, 1330.

Aspongopus vicinus westwood, 1837: 25. Synonymized by Dallas, 1851: 348.

Aspongobus [sic] janus Dohrn, 1859: 21 .

Aspangopus [sic] janus Motschoulsky, 1863: 76 .

Aspongopus (Aspongopus) janus St å l, 1870: 82, 83; Schouteden, 1913: 8, pl. 1, Fig 8.

Aspongopus ianus Breddin, 1909: 282 ; Kirkaldy, 1909: 380; Maxwell-Lefroy, 1909: 678, pl. 74, Fig 3; Manna, 1951: 39, 40, 44, Figs 19 a-i.

Coridius janus Schumacher, 1924: 335 , 336; Scudder, 1959: 413; Kumar, 1962: 48, 51, 53– 56, Figs 25–27, 46, 47, 72–74, 88; Rastogi & Kumari, 1962: 69–77; Gentry, 1965: 147, 154, 162, Fig 32; Ahmad & Abbasi, 1971: 37–49, Figs 1–14; Ahmad et al., 1971: 1–16; Naqvi et al., 1973: 209–221; Ahmad et al., 1974: 175–188, Figs 1–5; Ahmad & Afzal, 1977: 1–4, Figs 1–4; Kaushik et al., 1977: 244–250; Kaushik i, 1979: 211–219; Ahmad, 1980: 135; Nuamah, 1982: 16, 25; Schaefer & Ahmad, 1987: 30; Afzal & Sahibzada, 1988: 254; Satapathy & Patnaik, 1991: 56, 59, 60, Tables 1 and 2 , Fig 1G–1L.

Coridius ianus Durai, 1987: 187 , 216–218; Lis, 1990: 122, 141, Fig 23; 1991: 84, 87, Fig 4; 1992: 38; Rolston et al., 1996: 40, 41, 99; Ahmad et al., 1997: 305–307, 310–313, 318, 319, Figs 2A–2G.

Material examined. INDIA: Arunachal Pradesh, Rani Village, Pasighat , leg. Nikhil Joshi, 1. x.2018, 27.9653˚N, 95.316˚E, 139 m: 1M .

Diagnosis. Head, antennae, callar region, anterior half of scutellum, membrane, and legs black; pronotum, clavus, corium, connexivum and posterior half of scutellum orange or red; abdomen blackish ventrally. Hemelytra, corium similar to pronotum but membrane black. Prosternal groove yellow. Legs dark brown to blackish. Abdomen ventrally almost sanguineous to black with a narrow lateral border which is pale brown ( Figs 5H and 6H).

Head. Mandibular plates longer than clypeus, apex rounded ( Fig 9H). Eyes large, bulbous. Ocelli placed closer to eye than to each other. Labium short, reaching base of procoxae. Antennae five segmented, first antennal segment reaching apex of head. Pronotum glossy, finely punctate; pronotum with concave anterior margin, sinuate lateral margins, straight posterior margin.

Scutellum long, its sides gently sinuate, apex rounded,

Male genitalia. Pygophore with ventral rim concave with sparse setae; dorsal bridge straight with long ochraceous setae ( Fig 10H); ventrally moderately convex, with deep punctures ( Fig 11H). Parameres curved, highly sclerotized with rugae, tip blunt; outer margin serrated and setose apically; inner margin moderately concave ( Fig 12H).

Geographical distribution. Bangladesh, Borneo, India, Indonesia, Madagascar, Mynmar, Pakistan, Phillippienes, Sri Lanka, and Thailand [ 24, 27, 42, 44].

Remarks. This species is widely distributed in Indo-Malayan region.