Review of the Nearctic genus Lacconotus LeConte (Coleoptera, Mycteridae, Eurypinae)

Abstract

Lacconotus LeConte, the sole Nearctic representative of the eurypine Mycteridae, is revised, based on morphological features of adults. The following syn. n. is proposed: L. pallidus Van Dyke, 1928 = L. pinicola Horn 1879. The former is a light-colored form with a southern California distribution. A subgen. n., Alcconotus, is described for L. pinicola, producing the following comb. n.: Lacconotus (Alcconotus) pinicola (Horn). A lectotype is designated for L. pinicola. A key separating the two subgenera and species is provided, as are photographs and illustrations of salient structures of adults, and maps showing collection localities. Lacconotus punctatus is newly recorded in Alabama, Arkansas, Massachusetts, Oklahoma, Texas, and Wisconsin; L. pinicola is newly recorded in Arizona and Utah in the USA, and Baja California Norte in Mexico. Phenology information shows a north-to-south gradation in occurrence time.