Deepakius paper.cwk (WP) - Calodema

Calodema, 198: 1-6 (2012)The genus Deepakius Makhan, 1998 from Africa and Madagascar(Coleoptera: Hydrochidae) with a key to speciesby Dewanand Makhan*, Maryam Khani** & Somayeh Ezzatpanah ****Willem Bilderdijkhove 19, 3438 PM Nieuwegein, The Netherlands (email: dewanandmakhan@yahoo.co.uk)**Department of Agricultural Entomology, Science and Research Branch, Islamic Azad University, Tehran, Iran.(email: m_kh296@yahoo.com)***School of Biology, College of Science, University of Tehran, Tehran, Iran (email: s.ezzatpanah@gmail.com)Makhan, D., Khani, M. & Ezzatpanah, S. (2012). The genus Deepakius Makhan, 1998 from Africa and Madagascar(Coleoptera: Hydrochidae) with a key to species. Calodema, 198: 1-6.Abstract: The genus Deepakius Makhan, 1998 from Africa and Madagascar (Coleoptera, Hydrochidae) is outlined. Akey to the species is also provided.Key words: Deepakius, Hydrochidae, Coleoptera, Africa, Madagascar.IntroductionIn this paper, additional morphological data on the genus Deepakius Makhan, 1998 fromAfrica and Madagascar are provided. A key to the 4 known species of Deepakius is alsoprovided.Deepakius Makhan, 1998.Antenna with 5 segments and with one-segmented club (Fig. 5). Abdominal sternites,underside with 5 deep foveae, with long setae. Spines absent. Deepakius Makhan, 1998 is theonly genus of Hydrochidae without spines on the last abdominal sternite. Male aedeagus,median lobe with a very long flagellum.Deepakius albicans (Regimbart, 1906) (Figs. 1, 6, 7).Distribution: Central Africa (2.2 mm).Colour of body brown, shiny, elytral striae punctures large, white, interstriae flat, not widerthan striae punctures. Abdominal sternites (Figs. 6, 7, see arrows) underside with 5 deepfoveae, with long setae. Spines absent. Upper side of the 5 holes is thick.Deepakius amrishi Makhan, 1998 (Figs. 2, 5, 8, 9).Distribution: South Africa (3.3 mm).Colour of body black, shiny, elytral striae punctures large, white, interstriae carinate, notwider than elytral striae punctures. Abdominal sternites (Figs. 8, 9, see arrows) undersidewith 5 deep foveae, with long setae. Spines absent. Upper side of the 5 foveae is not so thick.Deepakius deepaki Makhan, 2002 (Fig. 3).Synonym: Deepakius albicans Makhan 1998, Annls Hist. Natn. Hung. 90: p. 142 (Fig. 8).Distribution: East Africa (3.1 mm).Abdominal sternites not seen. Colour of body brown, dull, elytral striae punctures white andPage 1

Calodema, 198: 1-6 (2012)same size as interstriae, interstriae flat.Fig. 1. Deepakius albicans (Regimbart, 1906) (total length = 2.2 mm).Fig. 2. Deepakius amrishi Makhan, 1998 (total length = 3.3 mm).Deepakius harryi Makhan, 2002.Distribution: Madagascar (3.9 mm).Colour of body black, shiny, elytral striae punctures large, white, interstriae carinate, notwider than striae punctures and carinate. Abdominal sternites (Figs. 8-9, see arrows)underside with 5 deep foveae, with long setae. Spines absent. Upper side of the 5 foveae isvery thick and thicker than in the other Deepakius Makhan, 1998 species.Key to the species of Deepakius Makhan, 19981. Colour brown, shiny on head, elytra and pronotum, striate punctures large andwhite...........................................................................................Deepakius albicans (Regimbart, 1906)2 Colour not shiny on head and prontum…………………………................Deepakius deepaki Makhan, 20023 Colour black, striae punctures small……………………..…..................... Deepakius amrishi Makhan, 19984 Larger than all other described species……………………………. ...............Deepakius harryi Makhan, 2002Page 2

Calodema, 198: 1-6 (2012)CommentsFig. 3. Deepakius deepaki Makhan (total length = 2.6 mm).Fig. 4. Deepakius harryi Makhan, 2002 (total length = 3.9 mm).Deepakius Makhan, 1998 can be distinguished from the other described genera of the family by the followingcombination of characters: elongated shape, short antenna with 5 segments, antenna with only one-segmentedclub and the absence of spines on the last abdominal sternite.AcknowledgementThanks are expressed to Dr Trevor J. Hawkeswood of Sydney, Australia for editorial assistance and review.References & Literature CitedMakhan, D. (1992). Twelve new Hydrochus-species from South America (Coleoptera: Hydrophilidae). Phegea, 20 (2):95-103.Makhan, D. (1993). Nine new Hydrochus-species from South and Central America (Coleoptera: Hydrophilidae).Annales Historico-Naturales Musei Nationalis Hungarici, 85: 65-70.Makhan, D. (1994a). Descriptions of a new species in a new genus, Kiransus, and five new species of Hydrochus(Coleoptera, Hydrophilidae). Zoological Studies, 33 (2): 160-164.Makhan, D. (1994b). Thirty-five new Hydrochus species from the Old and the New World (Coleoptera:Hydrophilidae). Annales Historico-Naturales Musei Nationalis Hungarici, 86: 29-42.Makhan, D. (1995a). Descriptions of six new species of Hydrochus from South and North America (Coleoptera:Hydrochidae). Zoological Studies, 34 (1): 18-20.Page 3

Calodema, 198: 1-6 (2012)Fig. 5. Deepakius amrishi Makhan. Antenna.Figs. 6. Deepakius albicans (Regimbart, 1906). Abdominal sternites.Figs. 7. Deepakius albicans (Regimbart, 1906). Abdominal sternites.Fig. 8. Deepakius amrishi Makhan, 1998. Abdominal sternites.Page 4

Calodema, 198: 1-6 (2012)Fig. 9. Deepakius amrishi Makhan, 1998. Abdominal sternites.Fig. 10. Deepakius harryi Makhan, 2002. Abdominal sternites.Page 5

Calodema, 198: 1-6 (2012)Fig. 11. Deepakius harryi Makhan, 2002. Abdominal sternites.Makhan, D. (1995b). Descriptions of ten new species of Hydrochus from different parts of the World (Coleoptera:Hydrochidae). Phegea, 23 (4): 187-193.Makhan, D. (1996). Descriptions of three new species of Hydrochus (Coleoptera: Hydrochidae). Phegea, 24 (4): 183-185.Makhan, D. (1998): Three new genera and two new species of Hydrochidae from different parts of the World(Coleoptera). Annales Historico-Naturales Musei Nationalis Hungarici, 90: 139-150.Makhan, D. (1999). Hydrochidae (Coleoptera) from North America with description of Hydrochus pajnii sp. nov. andHydrochus yadavi sp. nov. Recent Advances in Entomological Research, Eds. J.S. Yadav & R.C. Sobti M/sNarosa Publications, New Delhi. 51-53.Makhan, D. (2001a). A new genus Rishihydroius and three new Hydrochus species (Coleoptera: Hydrochidae) fromAfrica. Bangladesh Journal of Zooogy, 29 (1): 83-95.Makhan, D. (2001b). A new genus, Soesilius, and a new species of Hydrochidae (Coleoptera) from America. RussianEntomological Journal,10 (4): 389- 393.Makhan, D. (2002). Hydrochidae of the World. Dryopidae and Hydrophilidae. Printed by Rembrand, Suriname, ISBN90-807419-1-4, 24 pp.Date of publication: 5 January 2012Copyright: Dewanand Makhan & Somayeh EzzatpanahEditor: Dr T.J. Hawkeswood (www.calodema.com)(Published as hard paper copy edition as well as electronic pdf)Page 6