Re-description of Margarinotus (Paralister) longus (Bickhardt, 1910) with a key to the species of the subgenus Paralister of the genus Margarinotus from the Balkans (Coleoptera, Histeridae, Histerinae) Author Lackner, Tomáš text Zootaxa 2016 4079 1 103 118 journal article 31527 10.11646/zootaxa.4079.1.7 a71e40ae-4dc2-40cb-87d6-b2a3795828c1 1175-5326 1050509 3F3FDE45-1DF2-4CDA-8541-BF360DBCD656 Key to the species of the subgenus Paralister Bickhardt, 1917 of the genus Margarinotus Marseul, 1853 from the Balkans 1. Elytral epipleuron impunctate or only with scattered microscopic punctures; elytra in most cases with red maculae; occasionally entirely reddish-brown ( Fig. 5 )........................... Margarinotus ( Paralister ) purpurascens (Herbst, 1792) 1’. Elytral epipleuron always with dense punctures; elytra always entirely black, without red maculae ( Fig. 1 )............... 2 2. Lateral pronotal stria distanced from lateral pronotal margin, straight, often stopping short of pronotal base ( Fig. 6 ); body outline short, rounded..................................... Margarinotus ( Paralister ) ventralis (Marseul, 1854) ( Fig. 7 ) 2’. Lateral pronotal stria always slightly sinuate ( Fig. 8 ), never straight, not particularly distanced from the lateral pronotal margin; body outline usually more elongate................................................................... 3 3. Marginal prosternal stria not attaining suture between prosternal keel and lobe ( Fig. 9 )............................... 4 3’. Marginal pronotal stria attains suture between prosternal lobe and keel ( Fig. 12 )................................... 5 4. Apical pronotal angles with distinct punctures ( Fig. 10 ); smaller species, PEL: 4.50–6.00 mm.............................................................................. Margarinotus ( Paralister ) ignobilis (Marseul, 1854) ( Fig. 11 ) 4’. Apical pronotal angles impunctate; large species, PEL: 8.00 mm. Margarinotus ( Paralister ) longus ( Bickhardt, 1910 ) ( Fig. 1 ) 5. Prosternal keel with distinct carinal prosternal striae ( Fig. 13 ); punctures of pygidium large and dense, separated by less than their diameter ( Fig. 14 )............................. Margarinotus ( Paralister ) punctiventer (Marseul, 1854) ( Fig. 15 ) 5’. Prosternal keel without carinal prosternal striae ( Fig. 12 ), at most these are faintly impressed between procoxae; punctures of pygidium not so dense, separated by their own to several times their diameters ( Fig. 17 )............................. 6 6. Shortly oval, round species, PEL usually shorter than 4.50 mm ; 4th dorsal elytral stria usually not reaching ¾ elytral length basally; aedeagus with large basal piece ( Fig. 18 ); median lobe and armature ( Fig. 19 ).................................................................................. Margarinotus ( Paralister ) carbonarius (Illiger, 1798) ( Fig. 16 ) 6’. Oval, elongate species, PEL usually larger than 4.50 mm ; 4th dorsal elytral stria usually surpassing ¾ of elytral length basally, occasionally almost complete; aedeagus with smaller basal piece ( Fig. 21 ); median lobe and armature ( Fig. 22 )............................................................... Margarinotus ( Paralister ) neglectus (Germar, 1813) ( Fig. 20 )