Descriptions of New Species of Chespirito Ferreira, Keller & Branham (Coleoptera: Lampyridae: Chespiritoinae) and the First Record for the Subfamily in the United States Author Ferreira, Vinicius S. 0000-0001-8748-0358 Natural History Museum of Denmark, Zoological Museum, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark. vinicius. sfb @ gmail. com; https: // orcid. org / 0000 - 0001 - 8748 - 0358 vinicius.sfb@gmail.com Author Keller, Oliver 0000-0001-5067-3316 Florida State Collection of Arthropods, Florida Department of Agriculture and Consumer Services, P. O. Box 147100, Gainesville, FL 32614, USA. okeller 1977 @ gmail. com; https: // orcid. org / 0000 - 0001 - 5067 - 3316 okeller1977@gmail.com Author Ivie, Michael A. 0000-0003-0996-2946 Montana Entomology Collection, Marsh Labs, Montana State University, Room 5, 1911 W. Lincoln Street, Bozeman, MT 59717, USA. mivie @ montana. edu; https: // orcid. org / 0000 - 0003 - 0996 - 2946 mivie@montana.edu text Zootaxa 2022 2022-04-01 5124 2 230 237 journal article 53152 10.11646/zootaxa.5124.2.8 17c77dbf-628e-443e-a647-7d095f06d529 1175-5326 6405132 6DEA7DA6-0B3E-47A4-B8E9-87FB0D2FF730 Chespirito milleri new species ( Figs. 1C, 1F, 1I , 2C–E , 3C , 4 ) urn:lsid:zoobank.org:act: 455A8698-915B-4DF3-8869-664DB7357779 Type material (2). Holotype : ARIZONA : Cochise Co. ; Huachuca Mts. , 5700’; Ramsey Can. 7.viii-93; B&B Valentine , colls. ( USNM ) . Paratype : ARIZONA : Cochise Co. ; Huachuca Mts. , 5700’; Ramsey Can. 7.viii-93; B&B Valentine , colls. ( MTEC ) . Etymology. The species is named after Richard S. Miller (1945–2021), who first identified these specimens as a new genus and species but never described them. Rich worked primarily on Lycidae but was knowledgeable about a wide range of beetles and other insects, including all other ‘cantharoids’. Rich was a close friend and colleague of MAI and a role model and source of inspiration to VSF. Diagnosis. Chespirito milleri can be separated from other Chespirito spp. by the combination of a dorsally unicolorous pronotum and elytra ( Fig. 1C ) (vs. pronotal disc in C . ballantynae yellow), the pronotum not constricted medially ( Fig. 1C ) (vs. constricted in C . zaragozai ), the last three abdominal segments distinctly yellow ( Fig. 1F, 1I ) (vs. dark brown in C . lloydi or not distinctly yellow in C . zaragozai ) and by having ventrite 8 posteriorly entire and apically round ( Fig. 1F ) (vs. notched in C . zaragozai ) and tergite VIII posteriorly notched ( Fig. 1I ) (vs. tergite VIII entire in C . costae and C. hintoni ). Description. General color dark brown ( Figs. 1C ), mandibles, elytral insertions, trochanters, tarsi and last three abdominal segments yellow ( Figs. 1C ). Head as long as wide; posterior 2/3 covered by pronotum ( Fig. 1C ). Antennae when extending posteriorly reaching apical third of elytra ( Fig. 1C ). Pronotum not constricted medially; anterior angles round; posterior margin bisinuate ( Fig. 1C ); median longitudinal carina strongly visible throughout ( Fig. 1C ). Elytra 3.2× length of pronotum, moderately dehiscent, basally subparallel ( Fig. 1C ), with two weakly developed elytral costae ( Fig. 1C ). Scutellar shield posteriorly round ( Fig. 1C ). Abdomenal tergite VIII with distinct median notch ( Fig. 1I ); ventrite 7 shallowly notched posteriorly ( Fig. 1F , 2D ); ventrite 8 elongate, fusiform, longer than wide, entire posteriorly ( Fig. 1F ). Male genitalia with median lobe stout, fusiform, apically round, in ventral view bearing paired strut-like structure, divergent apically ( Fig. 3C ); parameres apically acuminate, acute ( Fig. 3C ), 1/2 shorter than median lobe; phallobase small, longer than wide, posteriorly rounded ( Fig. 3C ). Length (exposed portion of head+pronotum+elytra). 3.3 mm . Width (across humerus): 0.9 mm . Distribution. Known only from the Huachuca Mountains in southeast Arizona , USA ( Fig. 4 ).