Citheronia splendens
Druce, 1886
Splendid Royal Moth
Pronunciation
How to pronounce Citheronia splendens: //ˌsɪθəˈroʊniə ˈsplɛndɛnz//
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Identification
can be distinguished from other Citheronia by geographic range and pattern details. The wingspan of 106–150 mm places it among the larger . in early bear distinctive -tipped described as ' swatter' structures, similar to those of C. regalis (hickory horned devil) and C. lobesis.
Images
Distribution
Southern Arizona, USA, southward through central and southeastern Mexico. The C. s. sinaloensis occurs in central and northwestern Mexico and southeastern Arizona; C. s. splendens in Jalisco, México, Guerrero, and Chiapas; and C. s. queretana in Mexico.
Seasonality
are on from July to August.
Diet
feed on Gossypium thurberi (cotton), Rhus trilobata, Arctostaphylos pungens, and Rhus choriophylla.
Host Associations
- Gossypium thurberi - larval cotton
- Rhus trilobata - larval
- Arctostaphylos pungens - larval
- Rhus choriophylla - larval
Life Cycle
Females lay in groups of 1 to 4 on the sides of leaves. initially resemble bird droppings and feed primarily in the evening. As they mature, they begin feeding during the day on leaf and stems. In September, burrow underground to pupate. emerge the following year and do not feed.
Behavior
Early are feeders, shifting to feeding as they mature. Larvae burrow underground to pupate. are short-lived and do not feed.
Similar Taxa
- Citheronia regalisSimilar large size and early with -tipped ' swatter' ; distinguished by eastern North distribution
- Citheronia lobesisSimilar early larval and color pattern; occurs in Central America
- Citheronia laocoonSimilar early larval appearance; common in southeastern Brazil, distinguished by South distribution
More Details
Subspecies
Three are recognized: C. s. splendens (Jalisco, México, Guerrero, Chiapas), C. s. sinaloensis Hoffmann, 1942 (central and northwestern Mexico, southeastern Arizona), and C. s. queretana Vázquez-G., 1944 (Mexico).
Larval morphology
First and second possess distinctive -shaped tips on their , a trait shared with C. regalis and C. lobesis but not present in all Citheronia .
Sources and further reading
- BugGuide
- Wikipedia
- GBIF taxonomy match
- iNaturalist taxon
- NCBI Taxonomy
- Catalogue of Life
- Brazil Bugs #16 – Royal Moth Larva | Beetles In The Bush
- Super Crop Challenge | Beetles In The Bush | Page 3
- Lepidoptera | Beetles In The Bush | Page 8
- Brazil | Beetles In The Bush
- Silkmoth Season, Part 2: A royal welcome – Royal Walnut Moth, Citheronia regalis — Bug of the Week
- Devils and hummingbirds - Hickory horned devil, Citheronia regalis and hummingbird clearwing moth, Hemaris thysbe — Bug of the Week


