Moths of North Carolina
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View PDFGeometridae Members:
Euchlaena Members:
224 NC Records

Euchlaena madusaria (Walker, 1860) - Scrub Euchlaena

Taxonomy
Superfamily: Geometroidea Family: GeometridaeSubfamily: EnnominaeTribe: AngeroniniP3 Number: 911156.00 MONA Number: 6731.00
Comments: One of sixteen species in this genus that occur in North America north of Mexico (Pohl et al., 2016), twelve of which have been recorded in North Carolina
Identification
Field Guide Descriptions: Online Photographs: MPG, BugGuide, GBIF, BOLDTechnical Description, Adults: Forbes (1948, as E. vinnulentaria); Rindge (1956b)                                                                                 
Adult Markings: The medial and basal areas are pale yellow, dusted with dark brown, with the veins and transverse lines usually dark and contrasting (Rindge, 1956). The outer area of the forewings is variably shaded with dark brown but usually has a pale streak or patch at the apex. The postmedian is doubled in the middle on all four wings, forming a geminate loop; this is especially noticeable on the undersides of wings (Rindge, 1956). Note that Forbes, 1948, described E. astylusaria as having many of these traits, as well as having the same features of the male genitalia. As a subspecies of amoenaria, however -- as it was treated by Rindge -- astylusaria is distinguishable by the swollen hind tibiae and hair pencils in the males.
Wingspan: 35 mm (Forbes, 1948, as E. vinnulentaria)
Adult Structural Features: Males have non-swollen hind tibiae and lack a hair pencil, traits shared in Euchlaena only by E. deplanaria and E. irraria (Rindge, 1956). Forbes (1948) has a key to the male genitalia of Euchlaena that includes E. madusaria as vinulentaria. However, he does not indicate any differences between madusaria and astylusaria, which is now treated as a subspecies of amoenaria (see Rindge, 1956).
Adult ID Requirements: Identifiable from good quality photos of unworn specimens.
Distribution in North Carolina
Distribution: All of our records come from the southern half of the Coastal Plain, including both the Fall-line Sandhills and Outer Coastal Plain
County Map: Clicking on a county returns the records for the species in that county.
Flight Dates:
 High Mountains (HM) ≥ 4,000 ft.
 Low Mountains (LM) < 4,000 ft.
 Piedmont (Pd)
 Coastal Plain (CP)

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