Valid Names Results

Arctorthezia occidentalis (Douglas, 1891) (Ortheziidae: Arctorthezia)

Nomenclatural History

• Orthezia occidentalis Douglas 1891b: 245. Type data: UNITED STATES: Colorado, Custer County, West Cliff, in Myrmica? ant nests, ?/06/1889, by T.D.A. Cockerell. Syntypes, female, Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name Notes: One slide labeled cotype in the USNM has matching date and locality data from original description.
• Orthezia californica Ehrhorn 1906: 329. Type data: UNITED STATES: California, Santa Clara County, Mayfield, on Bahia sp. Syntypes, larva, Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; junior synonym (discovered by Ferris1920b, 13). Notes: Three slides of type material in USNM.
• Orthezia (Arctorthezia) occidentalis Douglas, 1891; Morrison 1925: 144-146. change of combination Illustr.
• Arctorthezia occidentalis (Douglas, 1891); Gómez-Menor Ortega 1937: 386-388. change of combination

Common Names

• western ensign scale Gill1993
• western orthezia Hatch1938

Ecological Associates

Hosts:

Families: 5 | Genera: 8

Associates:

Families: 1 | Genera: 2

Geographic Distribution

Keys

• SzitaKaKo2014: pp.62 ( Adult (F) ) [Key to adult females of species of Arctorthezia]
• Kozar2004: pp.260 ( Adult (F) ) [Key to the species of Arctorthezia]
• Gill1993: pp.77 ( Adult (F) ) [Morphological key to California Ortheziidae]
• Morris1925: pp.143 ( Adult (F) ) [Species of the subgenus Arctorthezia]
• MacGil1921: pp.113 ( Adult (F) ) [Orthezia species] Key as: Orthezia californica

Remarks

• Structure: Adult female, with secretion, is fairly large. Body is completely covered with dense, sharply defined wax plates, these occurring in the usual marginal and dorsal tufts, being white or variously discolored, sometimes appearing yellow-brown or gray (Morrison, 1925). Antennae 7 or 8 (rarely 6) segmented; all segments covered with 2-4 very robust, spine-like setae; apical spine of antennae thick and blunted. (Kaydan, et al., 2016)
• Biology: This species has been collected from the nests of the ant Formica integra (Morrison, 1925).
• General Remarks: Original and brief descriptions by Douglas (1891b) and Ehrhorn (1906). Subsequent and more detailed treatments by Morrison (1925 and 1952) and Kozár (2004).

Illustrations

Citations