MCZ Type (printed) 7970 (handwritten) [red rectangular label] / Cybocephalus californicus Horn Det: Trevor Smith (printed) [white rectangular label]. While this specimen is a syntype, it is not a valid lectotype because this designation was never published. This is consistent with many of Horn's type specimens that had lectotype labels placed on them around 1930 without corresponding publications. This occurred when the Horn collection was located at the Academy of Natural Sciences, Philadelphia (Philip D. Perkins 2005, personal communication). Two female specimens, labeled as paratypes in the MCZC, were also examined. The first "paratype" has the following labels: Cala (printed) F (handwritten) [small white rectangular label] / Para-Type (printed) 3216.4 (handwritten) [blue rectangular label] / Horn Coll H (printed) 3751 (handwritten) [white rectangular label] / Type 7970 (handwritten) [red rectangular label] / Cybocephalus californicus Horn Det: Trevor Smith (printed) [white rectangular label]. The second paratype label has the following labels: Cal (printed) j (handwritten) [small white rectangular label] / Para-Type (printed) 3216.3 (handwritten) [blue rectangular label] / Horn Coll H (printed) 3751 (handwritten) [white rectangular label] / Type 7970 (handwritten) [red rectangular label] / Cybocephalus californicus Horn Det: Trevor Smith (printed) [white rectangular label]. Two male syntypes in the MCZC were also examined. The syntypes are both glued to a single card with the following labels: Type (printed) 7970 (handwritten) [orange rectangular label] / Cybocephalus californicus Horn (handwritten with Cr. crossed and Horn written in a different colored ink) [large white rectangular label] / Cybocephalus californicus Horn Det: Trevor Smith (printed) [white rectangular label].