Dusky Lady Beetles - Scymnus [30 spp.] | SocalFauna.net

On Prickly Pear. Jack Dunster Marine Biological Reserve
© Chris Mallory

Dusky Lady Beetles (Scymnus [30 spp.])

Arthropoda > Insecta > Coleoptera > Polyphaga > Cucujoidea > Coccinellidae

A large genus of small (~3mm) pubescent lady beetles, very few of which can be identified from photos alone. Several species in our area are distinct, such as S. pacificus, a black species which has a distinct red spot in the median area of each elytron, as well as S. nebulosus, a pale species with irregular dark markings on the elytra. S. loewii, the most commonly collected member of the genus in California, is also distinct, with reddish-brown elytra intersected by a dark large triangular area beginning at anterior margins of the elytra and extending to the apex. S. falli, a Channel Islands species, is somewhat similar with dark anterior and pale apical areas of the elytra. Other than these species, all other species tend to be very similar in form and identification beyond genus may be difficult. Most of these species have black to dark brown immaculate elytra, and pale coloration (if any) is only present on the apical margin; the pronotum may be black or brown, often paler on the margins. These species include: S. ardelio, S. aridus, S. apithanus, S. calaveras, S. caurinus, S. cervicalis, S. elusivus, S. erythronotum, S. fenderi, S. gilae, S. hesperius, S. impletus, S. horni, S. humboldti, S. jacobianus, S. luctuosus, S. marginicollis, S. mendocino, S. solidus, S. tahoensis, S. tenebricus, S. weidti, and S. wickhami. In addition to these, several species in our area have pale brown as opposed to black elytra; those species include: S. cockerelli, S. coniferarum, S. dificilis, S. mimoides, and S. pallens.

1. California Beetle Project at Santa Barbara Museum of Natural History
2. Robert D. Gordon. 1985. The Coccinellidae (Coleoptera) of America North of Mexico

View Sightings (2 total, most recently on 05/11/2015)

Submit a sighting:
Encounter this species recently? Click here to submit a record to let others know which animals are active right now.You must be logged in to record recent sightings.

SocalFauna.net is built and maintained by Chris Mallory. All contributed content on this site is copyrighted by its respective owner, all rights reserved. All species IDs on this site should be treated as tentative and are presented here to help Southern California naturalists better understand the world around them, not to serve as a definitive authority of information. If you find any information presented here to be in error, or if you wish to send feedback positive or negative do not hesitate to email me. This site runs best on either Mozilla Firefox or Google Chrome.
Terms of Service