Coelostoma is a genus of beetles belonging to the family Hydrophilidae. The genus was first described by Brullé in 1835. The genus has cosmopolitan distribution, with 111 described species, representing one of the most diverse genera of Hydrophilidae.
Description Body rather convex, brown to black. Eyes are medium in size, and deeply excised internally. Antenna consists with 9 antennomeres, and loosely segmented antennal club. Mesoventrite consists with an arrow-head shaped median elevation. Metaventrite is longer than mesoventral elevation. There are strongly raised median portion in Metaventrite broadly projecting anteriorly which become abutted to mesoventral process. Elytra lacking serial punctures.
Species These 123 species belong to the genus Coelostoma:
Coelostoma aeneolum Régimbart, 1903 Coelostoma aethiopicum Orchymont, 1936 Coelostoma afflatum Knisch, 1922 Coelostoma alluaudi Mouchamps, 1958 Coelostoma anthracinum J.Balfour-Browne, 1939 Coelostoma assinicum Mouchamps, 1958 Coelostoma austrine Mouchamps, 1958 Coelostoma balfourbrownei M.Hansen, 1999 Coelostoma bannanicum Mai et al., 2022 Coelostoma basilewskyi Mouchamps, 1958 Coelostoma bechynei J.Balfour-Browne, 1959 Coelostoma bhutanicum Jayaswal, 1972 Coelostoma bibilense Hebauer, 2000 Coelostoma bifidum Jia et al., 2014 Coelostoma bipunctatum Jayaswal, 1972 Coelostoma brachaurum Mouchamps, 1958 Coelostoma brownei Mouchamps, 1958 Coelostoma brunneum Mouchamps, 1958 Coelostoma bullosum Mouchamps, 1958 Coelostoma camerunense Mouchamps, 1958 Coelostoma centrale Mouchamps, 1958 Coelostoma collarti Mouchamps, 1958 Coelostoma conradsi Orchymont, 1936 Coelostoma coomani Orchymont, 1932 Coelostoma cooptatum Orchymont, 1932 Coelostoma coortum Orchymont, 1932 Coelostoma dactylopunctum Mai et al., 2022 Coelostoma dentatum Knisch, 1924 Coelostoma deplexum J.Balfour-Browne, 1950 Coelostoma diversum Orchymont, 1932 Coelostoma dolum J.Balfour-Browne, 1950 Coelostoma ealanum Orchymont, 1941 Coelostoma edwardsi J.Balfour-Browne, 1940 Coelostoma erinna J.Balfour-Browne, 1950 Coelostoma escalerai Hernando, 1997 Coelostoma fabricii (Montrouzier, 1860) Coelostoma fallaciosum Orchymont, 1936 Coelostoma fortunum Mai et al., 2022 Coelostoma freudei Mouchamps, 1958 Coelostoma freyi Mouchamps, 1958 Coelostoma gentilii Jia et al., 2014 Coelostoma hajeki Jia et al., 2014 Coelostoma himalayanum Hebauer, 2002 Coelostoma hirsutum Mouchamps, 1958 Coelostoma hispanicum (Küster, 1848) Coelostoma homalinum Hebauer, 2002 Coelostoma hongkongense Jia et al., 2014 Coelostoma horni (Régimbart, 1902) Coelostoma huangi Jia et al., 2014 Coelostoma injuratum J.Balfour-Browne, 1952 Coelostoma insidiosum Mouchamps, 1958 Coelostoma insolitum Orchymont, 1936 Coelostoma irregulare Hebauer, 2001 Coelostoma jaculum Jia et al., 2019 Coelostoma jaechi Jia et al., 2017 Coelostoma jeanneli Mouchamps, 1958 Coelostoma kantnerorum Hebauer, 2006 Coelostoma lamottei J.Balfour-Browne, 1958 Coelostoma lazarense Orchymont, 1925 Coelostoma lemuriense Mouchamps, 1958 Coelostoma leonense J.Balfour-Browne, 1939 Coelostoma lesnei Orchymont, 1936 Coelostoma lyratum Sheth, Ghate & Fikáček, 2020 Coelostoma marshalli J.Balfour-Browne, 1950 Coelostoma martensi Hebauer, 2002 Coelostoma medianum Hebauer, 2002 Coelostoma mixtum Mai et al., 2022 Coelostoma mocquerysi Orchymont, 1936 Coelostoma montanum Mouchamps, 1958 Coelostoma mouchampsi M.Hansen, 1999 Coelostoma nankunshanense Mai et al., 2022 Coelostoma neavei J.Balfour-Browne, 1950 Coelostoma nostocinum Sheth, Ghate & Fikáček, 2020 Coelostoma oceanicum Mouchamps, 1958 Coelostoma optatum J.Balfour-Browne, 1952 Coelostoma orbiculare (Fabricius, 1775) Coelostoma orchymonti Mouchamps, 1958 Coelostoma orientale Mouchamps, 1958 Coelostoma parkeri Mouchamps, 1958 Coelostoma phalacroides Régimbart, 1903 Coelostoma phallicum Orchymont, 1940 Coelostoma phototropicum Jia et al., 2019 Coelostoma picturatum Orchymont, 1936 Coelostoma protervum J.Balfour-Browne, 1959 Coelostoma proximum Mouchamps, 1958 Coelostoma pseudomartensi Mai et al., 2022 Coelostoma punctulatum (Klug, 1833) Coelostoma remotum Mouchamps, 1958 Coelostoma rhodesiense J.Balfour-Browne, 1950 Coelostoma rhomphea Orchymont, 1936 Coelostoma rohani Orchymont, 1931 Coelostoma rubens Hebauer, 2002 Coelostoma rubiginosum J.Balfour-Browne, 1950 Coelostoma rufitarse (Boheman, 1851) Coelostoma rusticum Orchymont, 1936 Coelostoma rutarum Orchymont, 1936 Coelostoma salvazai Orchymont, 1919 Coelostoma segne J.Balfour-Browne, 1952 Coelostoma simulans Orchymont, 1925 Coelostoma solitarium Mouchamps, 1958 Coelostoma stultum (Walker, 1858) Coelostoma subditum Orchymont, 1936 Coelostoma subsphaeroides (Régimbart, 1907) Coelostoma subtile Orchymont, 1936 Coelostoma sulcatum Pu & Zhe-Long, 1963 Coelostoma surkhetense Hebauer, 2002 Coelostoma syriacum Orchymont, 1936 Coelostoma taiwanense Liu et al., 2020 Coelostoma tangliangi Jia et al., 2017 Coelostoma thienemanni Orchymont, 1932 Coelostoma tina Spangler & Steiner, 2003 Coelostoma togoense Hebauer, 2003 Coelostoma tortuosum J.Balfour-Browne, 1959 Coelostoma transcaspicum Reitter, 1906 Coelostoma trilobum G.Müller, 1942 Coelostoma turnai Hebauer, 2006 Coelostoma vagum Orchymont, 1940 Coelostoma vitalisi Orchymont, 1923 Coelostoma vividum Orchymont, 1936 Coelostoma waterstradti Orchymont, 1936 Coelostoma wittei J.Balfour-Browne, 1950 Coelostoma wui Orchymont, 1940 Coelostoma zumpti Orchymont, 1937
References
External links