A review of Tylostega Meyrick from Mainland China (Lepidoptera, Crambidae, Spilomelinae), with descriptions of four new species Author Du, Xicui Author Li, Houhun text Zootaxa 2008 1681 51 61 journal article 10.5281/zenodo.180403 0579d0a0-2fc2-4b82-9534-34d514b9ce54 1175­5326 180403 Key to the species of Tylostega Meyrick of Mainland China based on male genitalia 1 Juxta concave on posterior margin, protruding posterolaterally ................................................................ 2 ­ Juxta not obviously concave on posterior margin, with strong hornlike process mediolaterally or with fin­ gerlike process posterolaterally ................................................................................................................. 3 2 Sacculus with dorsal margin strongly arched, with small teeth and toothlike processes; phallus with two shorter and one longer spinelike cornuti ............................................................. T. tylostegalis (Hampson) ­ Sacculus with dorsal margin concave at basal 1/3, smooth; phallus with one stout spinelike and one den­ tate cornuti ...................................................................................................................... T. serrata sp. nov . 3 Juxta with strong hornlike process mediolaterally; phallus with two spinelike and one luniform cornuti .. ...................................................................................................................................... T. luniformis sp. nov. ­ Juxta with strong fingerlike process posterolaterally; phallus with two spinelike and one pectinate or one broadly boardlike cornuti ........................................................................................................................... 4 4 Phallus with two spinelike and one pectinate cornuti .................................................. T. pectinata sp. nov. ­ Phallus with two spinelike and one broadly boardlike cornuti ............................................ T. lata sp. nov.