Cyclosomus flexuosus (Fabricius, 1775)
Male adult
INDIA, Uttarakhand, 23-26.04.2012, 5 km N Ramnagar, valley of Kosi riv., N29°25' 56.50", E79°8' 21.40" Anichtchenko A. leg.; det. D. Fedorenko, 2015
Copyright © Alexander Anichtchenko

Cyclosomus inustus Andrewes, 1924
Male adult
Taiwan, Taipei, Shihmen, J.J. Cherng coll.
Copyright © Alexander Anichtchenko

Cyclosomus flexuosus (Fabricius, 1775)
Male adult
“Nubia”
Copyright © David Kavanaugh

Cyclosomus acutangulus Kavanaugh & Cueva-Dabkoski, 2023 Holotype
Male adult

Copyright © David Kavanaugh

Cyclosomus acutangulus Kavanaugh & Cueva-Dabkoski, 2023 Paratype
Male adult
NE India, Assam, Bhalukpong, 26.v-3.vi.2006, 27°02N 92°35E, 150m P. Pacholatko leg. (BMNH)
Copyright © David Kavanaugh

Cyclosomus vespertilio Cueva-Dabkoski & Kavanaugh, 2023 Holotype
Male adult
Nepal, Royal Chitwan National Park, black light 820ft, 31 Oct 1977 Gary F. Hevel (MNHN)
Copyright © David Kavanaugh

Cyclosomus vespertilio Cueva-Dabkoski & Kavanaugh, 2023 Paratype
Male adult
India
Copyright © David Maddison

Cyclosomus vespertilio Cueva-Dabkoski & Kavanaugh, 2023 Paratype
Male adult
India
Copyright © David Kavanaugh

Cyclosomus suturalis (Wiedemann, 1819)
Male adult
China, Yunnan, Mangshi, Zhefang Township, Longchuan Jiang near Nongkan vill.
Copyright © David Kavanaugh

Cyclosomus acutangulus Kavanaugh & Cueva-Dabkoski, 2023
Male genitalia

Copyright © David Kavanaugh

Cyclosomus dytiscoides Nietner, 1857 Lectotype
Female adult

Copyright © David Kavanaugh

Cyclosomus flexuosus (Fabricius, 1775)
Male adult
Cinkona, Anaimalai Hills, Tamil Nadu, India
Copyright © David Kavanaugh

Cyclosomus flexuosus (Fabricius, 1775)
Female adult
Tiruchirappalli, Tamil Nadu, India
Copyright © David Kavanaugh

Cyclosomus flexuosus (Fabricius, 1775) Lectotype
Male adult

Copyright © David Kavanaugh

Cyclosomus flexuosus (Fabricius, 1775)
Male genitalia
Karaikal, Paducherry, India
Copyright © David Kavanaugh

Cyclosomus vespertilio Cueva-Dabkoski & Kavanaugh, 2023
Male genitalia
New Delhi, Delhi, India
Copyright © David Kavanaugh

Cyclosomus marginatus Motschulsky, 1864 Lectotype
Male adult

Copyright © David Kavanaugh

Cyclosomus marginatus Motschulsky, 1864
Male genitalia

Copyright © David Kavanaugh

Cyclosomus suturalis (Wiedemann, 1819) Lectotype
Male genitalia
"Bengala"
Copyright © David Kavanaugh

Cyclosomus suturalis (Wiedemann, 1819) Lectotype
Male adult

Copyright © David Kavanaugh

Cyclosomus inustus Andrewes, 1924
Male adult
Cambodia, Steong Treng, "Hat Baoho"
Copyright © David Kavanaugh

Cyclosomus inustus Andrewes, 1924
Male genitalia
China
Copyright © David Kavanaugh

Cyclosomus inustus Andrewes, 1924
Male adult
Nanoa Island, Guangdong, China
Copyright © David Kavanaugh

Cyclosomus inustus Andrewes, 1924 Holotype
Male adult

Copyright © David Kavanaugh

Tetragonoderus (Tetragonoderus) quadrisignatus (Quensel In Schonherr, 1806)
Male adult
Siam (NMPC)
det. Andrewes
Copyright © Alexander Anichtchenko

Tetragonoderus (Tetragonoderus) notaphioides Motschulsky, 1861
Male adult
India mer., Tanjore Distr., Nedungadu (NMPC)
det. Jedlicka
Copyright © Alexander Anichtchenko

Tetragonoderus (Cyclicus) dilatatus (Wiedemann, 1823)
Male adult
W. Almora, Kumaon, India
det. Andrewes (NMPC)
Copyright © Alexander Anichtchenko

Tetragonoderus (Cyclicus) elegans Andrewes, 1931 Paratype
Male adult
Haldwani, U.P. India, Champion (NMPC)
Cotype
Copyright © Alexander Anichtchenko

Tetragonoderus (Tetragonoderus) taeniatus (Wiedemann, 1823)
Male adult
Shimaga, Mysore State, India Or.
Tetragonoderus trifasciatus Chaudoir det. Jedlicka
(NMPC)
Copyright © Alexander Anichtchenko

Tetragonoderus (Tetragonoderus) arcuatus Dejean, 1829
Male adult
Pusa, Bengal (NMPC)
det. Andrewes
Copyright © Alexander Anichtchenko

Tetragonoderus (Tetragonoderus) cinchona Jedlicka, 1964 Paratype
Male adult
Anamalai Hills, Cinchona, S. India, 3500 ft, 1959
Paratype (NMPC)
Copyright © Alexander Anichtchenko

Tetragonoderus (Cyclicus) dilatatus (Wiedemann, 1823)
Female adult
N India, Uttarakhand, left side of Kosi riv., 5 km N Ramnagar, N29*432 E79*140, 7-11.06.2011 Anichtchenko A. leg. & det.
Copyright © Alexander Anichtchenko

Tetragonoderus (Cyclicus) elegans Andrewes, 1931
Male adult
N India, Uttarakhand, left side of Kosi riv., 5 km N Ramnagar, N29*432 E79*140, 7-11.06.2011 Anichtchenko A. leg.; det. D. Kavanaugh 2023
Copyright © Alexander Anichtchenko

Tetragonoderus (Tetragonoderus) punctatus (Wiedemann, 1823)
Male adult
South Vietnam, 120 km NNE Ho Chi Minh, env Cat Tien, 2-8.IV.1994, Leg. A. Napolov. det. K. Makarov
Copyright © Alexander Anichtchenko

Tetragonoderus (Tetragonoderus) rhombophorus Schmidt-Goebel, 1846
Male adult
S Thailand, Peninsular Botanic Garden, Thung Khai, Yan Ta Khao Distr., Trang prov., 26.3.2005, T. Kurihara leg. 4.5 mm. det. Anichtchenko A. 2018
Copyright © Alexander Anichtchenko

Tetragonoderus (Tetragonoderus) quadrisignatus (Quensel In Schonherr, 1806)
Male adult
Thailand, Prov. Phang Nga, Khao Lak, Similana Resort, leg. U. Schmidt, 8-22.XI.2007; det. M. Baehr, 2008 6.7 mm
Copyright © Udo Schmidt

Tetragonoderus (Tetragonoderus) notaphioides Motschulsky, 1861
Female adult
India, Orissa, Kanarak 2km tow Puri, 11-13.2.2006 (cAA). det. A. Anichtchenko, 2022
Copyright © Alexander Anichtchenko

Tetragonoderus (Tetragonoderus) arcuatus Dejean, 1829
Male genitalia
Nepalgunj, Banke District, Nepal
Copyright © David Kavanaugh

Tetragonoderus (Tetragonoderus) arcuatus Dejean, 1829
Male adult
CASENT1013512, Xiaojiangqiao, Qushi Township, Tengchong County, Yunnan, China. det. D. Kavanaugh
Copyright © David Kavanaugh

Tetragonoderus (Cyclicus) elegans Andrewes, 1931
Male adult
CASENT1039409, Longchuan Jiang just below bridge at Menglian village, Wuhe Township, Tengchong County, Yunnan, China
Copyright © David Kavanaugh

Tetragonoderus (Tetragonoderus) punctatus (Wiedemann, 1823)
Male genitalia
CASENT1039548, Longchuan Jiang just below bridge at Menglian village, Wuhe Township, Tengchong County, Yunnan, China
Copyright © David Kavanaugh

Tetragonoderus (Tetragonoderus) punctatus (Wiedemann, 1823)
Male adult
CASENT1039412, Longchuan Jiang just below bridge at Menglian village, Wuhe Township, Tengchong County, Yunnan, China. det. D. Kavanaugh
Copyright © David Kavanaugh

Tetragonoderus (Cyclicus) fimbriatus Bates, 1886
Male adult
India, Karnataka, Karwar beach, 14.50.15N 74.7.33E, 17-18.4.2013, Anichtchenko A. leg & det (cAA). 6 mm
Copyright © Alexander Anichtchenko

Tetragonoderus (Cyclicus) fimbriatus Bates, 1886
Male genitalia
India, Karnataka, Karwar beach, 14.50.15N 74.7.33E, 17-18.4.2013, Anichtchenko A. leg & det
Copyright © Alexander Anichtchenko

Tetragonoderus (Tetragonoderus) rhombophorus Schmidt-Goebel, 1846
Male genitalia

Copyright © Alexander Anichtchenko

Tetragonoderus (Cyclicus) dilatatus (Wiedemann, 1823)
Male genitalia

Copyright © Alexander Anichtchenko

Tetragonoderus (Tetragonoderus) rhombophorus Schmidt-Goebel, 1846
Female adult
NEPAL, Bagmati, Pradesh, 180m, Chitwan, 29-31.III.2024. 5 mm; det. Anichtchenko A. 2024
Copyright © Augusto Degiovanni