Platyceroides (Praocerus) latus (Fall) Fall, 2017

Paulsen, M. J., 2017, Correction of existing generic and species concepts in Platyceroidini (Coleoptera: Lucanidae: Lucaninae) and the description of four new species of Platyceroides Benesh, Zootaxa 4269 (3), pp. 346-378 : 369

Platyceroides (Praocerus) latus (Fall) , new combination

Platycerus latus Fall, 1901: 291 , original combination.

Type series. Lectotype female, here designated (MCZ) labeled: a) “Placer / Co. CAL”; b) “Collected by / Dr. E.C. Van Dyke”; c) “TYPE”; d) “H.C. Fall / Collection”; e) on red paper, “M.C.Z. / Type / 24740”; f) red bordered, handwritten “ Platycerus / latus / Fall”; g) “[ Platyceroides / latus / (Fall)]” / Det. / N.E. Woodley 1983”; h) on red paper, “ Platycerus / latus Fall / LECTOTYPE”; i) “ Platyceroides latus / ( Fall, 1901) / det. M.J. Paulsen 2013”. Paralectotype male (MCZ) labeled: a–c) as a, b, and d of lectotype. Two paralectotype females (CASC) labeled: a) “Placer / Co. CAL”; b) “Van Dyke / Collection”. One paralectotype male (CASC) labeled: a) “Placer / Co. CAL”; b) “Van Dyke / Collection”; c) black bordered, handwritten “ Platycerus / latus / Fall”. Female paralectotype (CASC) labeled: a) “Alameda / CO. CAL”; b) “Van Dyke / Collection”. All paralectotypes labeled, on yellow paper: “ Platycerus / latus Fall / PARALECTOTYPE”.

The Alameda female paralectotype has suspect data—all other specimens are from the Sierra Nevadas , where the range is extensive. All other Platyceroides specimens examined from Alameda County are P. thoracicus . I do not consider P. latus to occur in Alameda County. One male and three females from the original type series were not located.

Distribution ( Fig. 31 ). CALIFORNIA: ALPINE: Alpine Lake; Bloods Meadow. AMADOR: Ham’s Station; “Ten Rise”. BUTTE: No locality. CALAVERAS: Big Trees State Park. EL DORADO: Blodgett Forest; Kyburz; Pacific House; Placerville; Pollock Pines; Riverton; Snowline Camp. FRESNO: Bretz Mill; Shaver Lake. LASSEN: Lassen National Park. MADERA: Buck Camp/Yosemite National. Park; North Fork; Sugar Pine; Westfall Camp. MARIPOSA: Fish Camp; Miami Ranger Station; Yosemite National Park. NEVADA: Camp Spaulding; Nevada City; White Cloud. PLACER: No locality. PLUMAS: 1 mi. S Meadow Valley. SHASTA: Manzanita Lake. SIERRA: New York Ravine. TEHAMA: Lassen National Park. TUOLUMNE: Confidence; Strawberry. YUBA: Bullards Bar; Challenge; Woodleaf.

Remarks. This species has the largest distribution in the genus. Females of P. latus are the most easily recognized females in the genus due to the thickened anterior margin of the head ( Fig. 21 ), which is also present in males ( Fig. 15 A). The flagellum of the male genitalia ends in a large, sclerotized club ( Fig. 15 B).

Figures

FIGURE 31. Distribution of Platyceroides, subgenus Praocerus: 29, Platyceroides viriditinctus (blue squares). 30, Platyceroides latus (orange circles).

FIGURES 21 – 22. Clypeal elevation in Platyceroides. 21, Platyceroides latus, clypeus distinctly raised, thickened. 22, Platyceroides opacus, clypeus normally declivous to labrum, typical of remainder of genus.

FIGURES 15 – 16. Subgenus Praocerus, males. Platyceroides latus: 15 A, dorsal habitus; 15 B, flagellum and parameres of male genitalia. Platyceroides viriditinctus: 16 A, dorsal habitus; 16 B, flagellum and parameres of male genitalia.