Coridius Illiger, 1807

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 : 10-11

Genus Coridius Illiger, 1807

Coridius llliger, 1807: 361; Schumacher, 1924: 335; Bergroth, 1927: 7; Yang, 1940: 6–10; Hoffmann, 1948: 21, 22; Stichel, 1962: 725; Nuamah, 1982: 24, 25; Durai, 1987: 185–190; Rolston et al., 1996: 31–33, 97; Lis, 1996: 51–54, Figs 1–8; Ahmad et al., 1997: 305–320, Figs 1–4; Kocorek, 2003: 51–55, Figs 1–5. Type species: Cimex ianus Fabricius, 1775 by monotypy.

Aspongopus Laporte, 1832 : 58; Burmeister, 1835: 347, 351; Spinola, 1837: 304, 305; Amyot & Serville, 1843: XXIX, 173; Herrich-Schäffer, 1844: 77; Agassiz, 1846: 3; Spinola, 1850: 33; Dallas, 1851: 318, 348; Herrich-Schäffer, 1851: 282; Fieber, 1860: 79; 1861: 330; St å l, 1865: 81, 212; Mulsant & Rey, 1866: 234; 1867: 157; St å l, 1867: 522; Vollenhoven, 1868: 38; walker, 1868: 480; St å l, 1872: 40; Puton, 1886: 15; Atkinson, 1889: 87; Lethierry & Severin, 1893: 236; Distant, 1902: 279, 281; Oshanin, 1906: 161; Bergroth, 1908: 188; Kirkaldy, 1909: 255; Schouteden, 1909: 71; Oshanin, 1912: 19; Jeannel, 1913: 100; Kirkaldy, 1913: 84; Schouteden, 1913: 6, 7; Hesse, 1925: 41; Tang, 1935: 335; Cachan, 1952: 294; Villiers, 1952: 86; Priesner & Alfieri, 1953: 12; Cobben, 1968: 112, Figs 114A, 114B; Hsiao et al., 1977: 69, 70. Type species: Cimex janus Fabricius, 1775 , by monotypy. Synonymized by Schumacher, 1924: 335.

Spongopodium Spinola, 1837: 305 ; Agassiz, 1846: 18; Spinola, 1850: 33. Type species: Cimex obscurus Fabricius, 1794 , by monotypy. Synonymized by St å l, 1865: 212.

Amacosia Spinola, 1850: 78 . Type species Amacosia delegorguei Spinola, 1850 by monotypy. Synonymized by walker, 1864: 480.

Aspongobus [sic] Dohrn, 1859: 21.

Peltagopus Signoret, 1861: 936 . Type species: Peltagopus flavomarginatus Signoret 1861 by monotypy. Synonymized by St å l, 1865: 212.

Aspongopus (Aspongopus) St å l, 1870: 81; Schouteden, 1913: 7. Synonymy used here and henceforth is based on Lis [ 24], Durai [ 27], and Rolston et al. [ 42].

Diagnosis. Head small, triangular, broader than long, mandibular plates longer than clypeus, rounded, and meeting or not in front of clypeus. Ocelli prominent, placed closer to eyes than to each other. Eyes globular, pedunculate. Labium four segmented, reaching about middle of meso-sternum, first and second segment mostly sub-equal, third and fourth smaller and sub-equal. Bucullae prominent, raised above the level of labium. Antennae four or five segmented, first segment surpassing apex of head, second and third subequal or sometimes second longer or shorter than third, fourth generally long with setae on both sides, fifth cylindrical, and finely setose. In some species second, third and fourth antennal segments grooved and flattened.

Pronotum declivous, trapezoidal. Lateral margins straight or rounded, sometimes slightly raised or carinate; dorsally rugulose punctate. Calli rugulose and smooth. Anterior margin concave behind head. Anterior angles slightly broader than width at eye. Humeral angles rounded, slightly truncate. Posterior margin moderately straight over scutellum.

Scutellum broader than long, longer than clavus, lateral margin distinctly sinuate, and its apical region broadly rounded.

Hemelytra longer than abdomen. Clavus narrow, short, corium broad. Membrane long and broad with numerous longitudinal veins.

Pro-sternum deeply sulcate mesially, its lateral area distinctly raised or flat, posterior margin slightly sinuate in lateral region. Pro-coxal area distinctly raised, pro-coxae very close together. Meso-sternum smooth on disk with median groove and longitudinal rugae. Metasternum very narrow between coxae. Metathoracic scent gland situated close to metacoxae, more ventral in position with narrow peritreme and well-developed evaporatoria.

Coxae close together in a linear series. Femora slightly curved or straight with spines underneath in distal half, tibiae distinctly sulcate and with spines distally. First segment of tarsus more setose, second and third with very sparse, long setae. Claws divergent, pulvilli distinct, well developed. Hind tibia in females slightly dilated and with oval tympanal organ.

Abdomen broad, connexivum moderately or well exposed. Segmental sutures sinuate, seventh sternum longest. Spiracles black, situated closer to anterior margin than lateral margin of segment. Spiracle of first visible abdominal segment partially or totally covered by metasepimeron. Trichobothria distributed in pairs posterior to pseudosutures and spiracle.

Pygophore visible from dorsal as well as from ventral sides, basally convex, flat in distal half, ventral surface rugulose; ventral rim rounded or notched medially or sometimes raised or concave or straight; dorsal rim moderately concave or straight. Parameres short or slender, apical tip rounded or blunt or pointed.