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).