Zilus aterrimus
(Horn, 1895)
Western Velvethead Lady Beetle
Zilus aterrimus is a minute lady beetle in the Coccinellidae. It is known from western North America, with records from Idaho and Washington south to California and Arizona. measure approximately 1.25–1.60 mm in length.
Pronunciation
How to pronounce Zilus aterrimus: //ˈzaɪləs ˌætəˈraɪməs//
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Identification
Distinguished from other lady beetles by its minute size (under 2 mm), reddish brown body coloration, and yellowish brown appendages. The combination of small size and specific color pattern separates it from larger Coccinellidae and from other Zilus .
Images
Appearance
are extremely small, measuring 1.25–1.60 mm in length. The body is reddish brown. , mouthparts, and legs are yellowish brown.
Distribution
Western North America. Documented from Idaho and Washington south through California to Arizona.