Table 2 in Revision of the genus Miridiba Reitter, 1902 (Coleoptera, Scarabaeidae, Melolonthinae): genital morphotypes and new taxonomic data

Table 2. Differences between holotype of M. frontalis (Fairmaire, 1886) and lectotype and paralectotype of M. castanea (Waterhouse, 1875).
CharacterM. frontalisM. castaneaClypeus lengthshorter than the fronsas long as the fronsClypeus shapeconcaveflatFrontal pubescencepresent and longabsent or, at most, very short hardly noticeableFrontal carinahigh, sharp.low, not sharpPronotal anterior edgegently wavy behind eyeswithout wavy behind eyesAnterior anglesacuteobtuseProsternal processquadrangular shapedrounded with a bulge on ventral faceElytral pubescenceLong on basal partabsent or, at most, very short hardly noticeableCarina of the protibiastrongly elevated. Sharpgently elevatedProtibia, insertion of the inner spurcloser than 3th than 2nd toothequidistant between the 2nd and 3th toothPro- and metatarsiconspicuous tufts of setaeinconspicuous tufts of setaeBranches of the paramereswithout pubescence or granuleswith pubescence or granulesEndophallumwith soft spurswith strong spurs