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 grandjeani Pic, 1930 ( Figs. 5 , 14 , 23 , 31 , 39 , 45 ) Macrolygistopterus grandjeani Pic, 1930a : 83 (original description); Kleine, 1933 : 104 (catalogue); Blackwelder, 1945 : 351 (catalogue). Type material. Macrolygistopterus grandjeani : syntype , male, Durango, Mexico , hereby designated as lectotype , deposited at MNHN . Diagnosis. Pronotum transverse, rectangular, elytra blue, subparallels, both densely pubescent, short rostrum. Redescription. Head black, prolonged in short rostrum, as long as sum of antennomeres I+II+III ( Fig. 14 ); coronal suture widened close to antennal insertion; median interocular distance of 3x width of eye. Mandibles curved, longer than labrum, orange. Maxillary palp with palpomere I short, ca. 1/3 the length of II; palpomere II elongated, as long as the sum of III+IV; palpomere IV securiform. Antennae with seven antennomeres (others missing), scape conic, 1/3 the shorter than III; pedicel minute, ca. 1/4 the length of scape; antennomere III as long as I+II; antennomere IV slightly larger and longer than III; antennomeres V to VII gradually shorter. Pronotum rectangular, slightly wider than longer (6:7), with rounded angles and posterior angles pronounced and lateral margins not pronounced, densely pubescent, orange, with a wide longitudinal black stripe; pair of longitudinal elevations parallels, slightly larger in basal third, with pair of oblique carinae starting from basal 2/4 ( Fig. 23 ). Scutellum dark blue, transverse, subquadrate ( Figs. 5 , 31 ). Elytra subparallel, dehiscent, margins stout and pronounced, bluish black, pubescent. Arrangement of elytral costae: costae I and II region and costae III and IV fused in subapical region, each of the fusions continuing as a single costa, not reaching the apex. Female ventrite VII transverse, laterally moderately pubescent, with a shallow and wide groove dividing the apex, forming two backwards divergent apices ( Fig. 39 ). Width at humeri> 3.1mm. Elytral length—13.0mm. Distribution. Durango, Mexico , only known by the lectotype ( Fig. 45 ). Examined material. Durango, Mexique , 1♀ ( lectotype ) ( MNHN ). Male unknown.