Trigonotoma indica Brulle , 1834,

Zhu, Pingzhou, Shi, Hongliang & Liang, Hongbin, 2020, Notes on the genus Trigonotoma from China, with descriptions of two new species (Carabidae, Pterostichinae), ZooKeys 921, pp. 49-64 : 49

Trigonotoma indica Brulle, 1834 new record Figures 9-12

Brullé, 1834: 333 (Original: Trigonotoma , type in MNHN; type locality: Bengale); Chaudoir, 1868: 158; Bates, 1886: 145; Csiki, 1929: 517; Andrewes, 1930: 354; Andrewes, 1938: 138; Morvan, 1994: 328; Lorenz, 2005: 895; Dubault et al., 2007: 210; Kirschenhofer, 2007: 8; Dubault et al., 2008: 179; Roux et al., 2016: 122; Löbl I & Löbl D, 2017: 755.

viridicollis Dejean, 1828: 183, (Original: Trigonotoma ; type in MNHN; type locality: India); Guérin-Méneville, 1829:44; Andrews, 1919: 148. Unavailable name, misidentification of Omaseus viridicollis Macleay, 1825. (Synonym)

baehri Kirschenhofer, 1997: 700, (Original: Trigonotoma ; type in ZSM; type locality: C-Indien, MPR. Panna, Nat. Park). (Synonym)

Type locality.

Bangladesh.

Material examined.

1 male (IZAS), "China, Tibet, Mêdog, Baibung Township, 780 m, 2011.VIII.10-13, Bi W. X."; 1 female (CCCC), "China, Tibet, Mêdog, Baibung Township, 700 m, 2011.VIII.09, YANG X. D. Leg. B11y2633, CCCC"; 1 female (IZAS), “Mêdog, light trap, 2016.VIII.5, Qiu T. F."; 18 males and 30 females (CCCC), "India, Andhra Pradesh Nellore District, Naidupet Mandal, Dwarakauram vili., 2010.IX.11-X.3, Chen C. C. Leg.".

Diagnosis.

BL = 20mm. Dorsal side bicolored, pronotum with metallic luster, purple, green, blue or nearly black, elytra black with faint metallic reflections; pronotum lateral margins strongly sinuate in front of posterior angles; posterior angles sharp and base rectangular; basal fovea more or less punctate and rugose; metepisternum long and narrow; apical lamella of aedeagus with rounded apex, shallowly notched or not. Trigonotoma indica can be readily distinguished from all other Chinese species by the pronotum lateral margins that are strongly sinuate near base.

Supplementary descriptions on endophallus.

Endophallus (Fig. 12 ) bent to dorsal direction of aedeagus, major portion of endophallus on dorsal side of aedeagus; gp located at approx middle of aedeagus, oriented to aedeagal base; gpl large, rounded, membranous, bb absent; cp absent. Four distinct lobes recognized: bl moderately large, slightly prolonged, located at base of apical orifice, pointing to apical direction of aedeagus, with a few scales on left side; ll moderately large, divided into several sub-lobes, located at left side of endophallus, with fine scales; rl smaller than ll, rounded, located at right side of endophallus, with fine scales; al large, divided into several sub-lobes, located at apex of endophallus, connected with base of endophallus through a narrow area, forming a dumbbell-shape, with fine scales. Middle of endophallus large, rounded, with a V-shaped sa on left middle and fine scales on apex.

Distribution.

China (Tibet: Mêdog), India, Bangladesh, Sri Lanka, and Pakistan. Another subspecies, T. indica nepalensis , is distributed in Nepal.

Remarks.

It is expected this species would be found to be widely distributed in and around China. Identification is based on the comparison of the image of holotype ( Roux et al., 2016) and specimens from Andhra Prad., India. Compared with the specimens from India, T. indica from Mêdog is slightly larger and more vividly green on its pronotum.

Figures

Figures 9 - 12. Trigonotoma indica Brulle, 1834. 9 Habitus (male, Xizang, IZAS) 10 labels 11 median lobe of aedeagus A dorsal view B left lateral view 12 endophallus A left lateral view B dorsal view C right lateral view.