A revision of the genus Macrolygistopterus Pic, 1929 (Coleoptera, Lycidae, Calochromini) Author Ferreira, Vinicius S. text Zootaxa 2016 4105 4 321 338 journal article 10.11646/zootaxa.4105.4.2 23dcb341-8737-42cb-bef7-7f29437f2788 1175-5326 271306 07266FCB-8D6E-4AEA-9159-ECE7D8D31ED0 Macrolygistopterus subparallelus Pic, 1930 ( Figs. 7 , 15 , 25 , 32 , 45 ) Macrolygistopterus subparallelus Pic, 1930a : 84 (original description); Kleine, 1933 : 104 (catalogue); Blackwelder, 1945 : 351 (catalogue); Costa & Vanin, 2012 :55 (immature stages). Type material. Macrolygistopterus subparallelus : syntype , male, Paraguay , no other data, hereby designated as lectotype , deposited at MNHN . Diagnosis. Pronotum rectangular, with angles slightly directed backwards and strongly sculptured ( Fig. 25 ). Elytral costa arrangement: costa I and II fused subapically, apex of costa I apically obliterated; costa III subapically obliterated and fused to the outer margin of II; costa IV reaching elytral apex, with an oblique obliterated line linking costa II and IV ( Fig. 32 ). Redescription. Head black, prolonged in rostrum as long as sum of antennomeres I+II+III ( Fig. 15 ); coronal suture reduced, hardly visible. Median interocular distance of 2x width of eye. Mandibles curved, connates to labrum, testaceous. Maxillary palp with palpomere I short; palpomere II twice the length of I; palpomere III slightly shorter than the precedent; palpomere IV securiform. Antennae with scape conic; pedicel 1/3 of scape length; antennomere III subequal to I in length; antennomere IV slightly longer than precedent; antennomeres V to VII gradually shorter. Pronotum subtrapezoidal, wider than longer (6:9), with anterior margin pronounced, and lateral and posterior margins not pronounced, testaceous, with a wide longitudinal black strip, strongly sculptured; a pair of shallow longitudinal elevations parallels, constricted in 2/5 and 4/5; a pair of oblique elevations starting from close to the anterior angles and reaching but not touching the median enlarged region ( Fig. 25 ). Scutellum black, transverse ( Figs. 7 , 32 ). Elytra subparallels, lateral margins stout, testaceous with apical third bluish black. Arrangement of elytral costae: Costa I and II fused subapically, apex of costa I apically obliterated; costa III subapically obliterated and fused to outer margin of II; costa IV reaching elytral apex, with an oblique obliterated line linking costa II and IV ( Fig. 32 ). Width at humeri> 2.6mm. Elytral length—10.4mm. Distribution. Paraguay , only known by the lectotype ( Fig. 45 ). Examined material. Paraguay , 1 ♂ ( lectotype ) ( MNHN ). Female unknown. Comments . Costa & Vanin (2012) described the immatures stages of a Macrolygistopterus species that at the moment of the publication was tentatively identified as M . subparallelus , however, after the comparison of the specimen with the lectotype of M . subparallelus I was able to recognize that the specimen was from another species.