Rediscovery and Redescription of Cryptalaus cardoni (Candèze, 1890) comb. nov (Coleoptera: Elateridae) after a century with notes on other Cryptalaus Ôhira species in India Author Parekar, Harshad Author Danani, Drashti 0000-0001-5409-9956 drashti.nd@gmail.com Author Patwardhan, Amol 0000-0002-9265-505X amolppatwardhan@gmail.com text Zootaxa 2024 2024-01-10 5399 1 52 64 http://dx.doi.org/10.11646/zootaxa.5399.1.4 journal article 10.11646/zootaxa.5399.1.4 1175-5326 10494439 2CCD1E2F-977D-4250-B6DE-E6F903B3517A # Key to valid Indian species of Cryptalaus Ôhira (after Parekar & Patwardhan, 2021 ) 1. Pronotum with transverse median carina near base........................................................... 2 –. Pronotum without transverse median carina near base........................................................ 7 2. Anterior edge of pronotum simple or slightly emarginate medially without any medioanterior projections; elytral apex truncate............................................................................................ 3 –. Anterior edge of pronotum sinuous with two teeth-like projections medioanteriorly; elytral apex emarginate or round...... 4 3. Anterior edge of pronotum simple, pronotal posterior angle broad with carina straight, directed towards centre of pronotal disc and just reaching base of posterior angle; elytral interstriae flat; apical lobe of paramere 3.3 times as long as wide..................................................................................... C. sordidus ( Westwood, 1848 ) –. Anterior edge of pronotum slightly emarginate medially, pronotal posterior angle narrow with carina curved along lateral edge of pronotum, reaching slightly beyond base of posterior angle; elytral interstriae convex; apical lobe of paramere 1.5 times as long as wide....................................... C. furunculus ( Sarkar, Saha & Raychaudhuri, 2016 ) comb. nov. 4. Sides of pronotum evenly convex, anterior angles of pronotum acute in dorsal view................................. 5 –. Sides of pronotum irregularly convex to subparallel, anterior angles of pronotum broad in dorsal view.................. 6 5. Apex of elytra round..................................... C. tamargrahensis Akhter, Drumont, Rizvi & Ahmed, 2012 –. Apex of elytra slightly emarginate with sutural spine....................................... C. eryx (Candèze, 1874) 6. Two teeth-like projections on anterior edge of pronotum not raised, two eye-like spots on pronotal disc of black pubescence oval, deviated towards central axis, posterior angles distinctly divergent; apex of elytra emarginate with slightly produced sutural and lateroapical spine.................................................... C. assamensis (Schwarz, 1902) –. Two teeth-like projections on anterior edge of pronotum strongly raised and pointed, two eye-like spots of black pubescence round; apex of elytra emarginate with distinct lateroapical spine...................... C. nodulosus ( Waterhouse, 1877 ) 7. Scutellar shield strongly declivous and folded in two planes, anterior vertical and posterior horizontal; elytral apex truncate or emarginate.......................................................................................... 8 –. Scutellar shield declivous in single slanting plane; elytral apex conjointly rounded.................................. 9 8. Pronotum with sides sinuate to narrowly convex, with distinct longitudinal median ridge, median basal tubercle raised and rounded, posterior angles elongate; elytral apex emarginate with sutural and lateroapical spine........................................................................................... C. alveolatus Parekar & Patwardhan, 2021 –. Pronotum with sides strongly convex, disc with irregular surface and without longitudinal median ridge, median basal tubercle raised in transverse ridge, posterior angles broad; elytra with apex truncate to slightly emarginate due to produced sutural region....................................................................... C. sculptus ( Westwood, 1848 ) 9. Anterior edge of pronotum simple without any medioanterior projections, sides of pronotum subparallel, posterior angles of pronotum very slightly divergent.......................................... C. cardoni ( Candèze, 1890 ) comb. nov. –. Anterior edge of pronotum with two teeth-like projections medioanteriorly, sides of pronotum evenly convex, posterior angles of pronotum distinctly divergent.................................................... C. lynceus (Candèze, 1874)