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Species Ululodes quadripunctatus - Four-spotted Owlfly

Four-spotted Owlfly - Ululodes quadripunctatus - female Four-spotted Owlfly - Ululodes quadripunctatus - male Owlfly - Ululodes quadripunctatus - female Four Spotted Owlfly - Ululodes quadripunctatus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Neuroptera (Antlions, Lacewings and Allies)
Family Ascalaphidae (Owlflies)
Genus Ululodes
Species quadripunctatus (Four-spotted Owlfly)
Synonyms and other taxonomic changes
Ululodes quadripunctatus (Burmeister, 1839). Synonyms:
Ululodes quadrimaculatus
Colobopterus excisus Hagen, listed as a synonym on this site--thislikely referred to the male, which has excised hind wings
Explanation of Names
Species name quadripunctatus means "four spots".
Size
Body length circa 38 mm, antennae about 25 mm.
Identification
The most widespread owlfly in eastern North America. Characteristic cryptic posture has abdomen pointed outward from the perch, imitating a twig. (Characteristic of all owlflies?) Eyes divided (characteristic of genus, Ululodes). This species is sexually dimorphic:
  • Females have diffuse dark spots near the wing-tips, but variable, sometimes absent or worn off.
  • Male has slender abdomen, female plump.
  • Male has prominent tuft of black bristles on top of abdomen, near base. These resemble scent scales, or pencils, found in some lepidoptera.
  • Hindwings of male are stalked (pedunculate), most visible when wings spread. This character is unique to U. quadrimaculatus. Hindwings of female do not have prominent stalks. See Neuroptera of Florida
  • In both sexes, pterosigma is cream colored. It is dark in another widespread species of southeast, U. macleayana.
Range
Eastern North America
Habitat
Varied, perhaps near deciduous forests?
Season
Summer, June-August in Piedmont region of North Carolina.
Food
Allegedly predatory on other flying insects.
Life Cycle
Larvae predatory in leaf litter, etc. Adults come to lights in mid-summer. They are allegedly most active at dusk and dawn.
Remarks
Not a lot is known about life history of these strange creatures.
Print References
Arnett (1)
Salsbury, p. 159, ill. male (2)
Brimley, pp. 31-32, lists Ululodes quadripunctata Burmeister (likely refers to the female) for July and August in North Carolina (3), and Colobopterus excisus Hagen (likely refers to the male) for June, and July in that state.
Lago and Testa. 1989. Records of owlflies (Neuroptera: Ascalaphidae) from Mississippi, with a key to species. Entomological News. 100(1):11-17. This keys U. quadrimaculatus from U. macleayana.
Internet References
Ululodes quadrimaculatus--Clemson Entomology
Ululodes quadrimaculatus "Four-spotted Owlfly"--photo of specimen (male) from Canada
North Carolina State University Entomology Collection lists just this one species in the genus for North Carolina.
Neuroptera of Florida--describes sexual dimorphism in wings of this species.
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
By Ross H. Arnett
2.Insects in Kansas
By Glenn A. Salsbury and Stephan C. White
3.Insects of North Carolina
By C.S. Brimley