Field Guide Descriptions: Covell (1984); Beadle and Leckie (2012) | Online Photographs: MPG, BugGuide, GBIF, BOLD | Technical Description, Adults: Forbes (1954) | Technical Description, Immature Stages: Wagner et al. (2011) | |
Adult Markings: Our two species are mottled brown with a distinct small white spot in the anal fold of the forewing. Distinguishing the two species is very difficult but fortunately C. sensilis is on the wing from late August through early October so any Chytonix outside that time period is C. palliatricula. Additionally, C. palliatricula has a form with large white spots on the forewing, C. sensilis can be slightly frosted in the same area but never looks like this form of C. palliatricula. Familiarity with the species allows most individuals to be sorted correctly but to be absolutely sure of the identification requires dissection or barcoding. Sexes similar but females often larger. Both morphological forms relatively common. |
Wingspan: 28-33 mm (Forbs, 1954) |
Adult Structural Features: In the male the arrowhead-shaped uncus of C. palliatricula is distinct (narrow and slightly curved in C. sensilis). In the female the four longitudinal signa in the bursa of C. palliatricula are absent or barely present in C. sensilis. |
Structural photos |
![](photos_structures/2017/tn9556.00_1513284882.jpg) Male reproductive structures. May 6, 1997, Stokes Co., J. B. Sullivan |
![](photos_structures/2017/tn9556.00_1513284904.jpg) Aedeagus. May 6, 1997, Stokes Co., J. B. Sullivan |
![](photos_structures/2017/tn9556.00_1513284946.jpg) Abdominal pelt, male. May 6, 1997, Stokes Co., J. B. Sullivan |
![](photos_structures/2017/tn9556.00_1513284980.jpg) Female reproductive strucures. July 19, 1975, Alleghany Co., J. B. Sullivan |
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Adult ID Requirements: Identifiable from good quality photos of unworn specimens. |
Immatures and Development: The caterpillar is gray or brown and distinguished by the fact that the antennae are white and there are two black lines across the small head. |