Moths of North Carolina
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Dichrorampha Members:
4 NC Records

Dichrorampha broui Knudson, [1987] - No Common Name

Dichrorampha broui
Taxonomy
Superfamily: Tortricoidea Family: TortricidaeSubfamily: OlethreutinaeTribe: GrapholitiniP3 Number: 51a1276.1 MONA Number: 3414.30
Identification
Field Guide Descriptions: Online Resources: MPG, BugGuide, iNaturalist, Google, BAMONA, GBIF, BOLDTechnical Description, Adults: Knudson (1986)                                                                                 
Adult Markings: The following is based on the description by Knudson (1986). The antenna, thorax, and the front and vertex of the head are all gray, while the palp is dark gray with an oblique whitish band on the lateral surface of the second segment. The ground color of the forewing is grayish white and marked with numerous closely spaced blackish strigulations that are outwardly oblique from the dorsal margin to just beyond the middle of the wing, then angled inwardly to the costal margin. The termen is slightly produced at the apex and has three short black horizontal dashes at its middle. A black dot is often present at the tornus that is separated from the three dashes by a whitish patch. The distal half of the costal margin has five equally spaced white spots, with the inner two or three geminate. The terminal line is dark gray and the fringe shining yellowish gray. The hindwing is light gray and darker near termen, with the terminal line dark gray and the fringe shining yellowish gray.
Forewing Length: 5.2-6.0 mm for males (average = 5.5 mm); 4.9-6.1 mm (average = mm) for females ( Knudson 1986).
Adult Structural Features: The males lack a costal fold. Knudson (1986) provides illustrations of the male and female genitalia, along with the following descriptions. In males, the costa of the valva is bent anteriorly, and the neck incurvation is broad and tapers to a narrow constriction before the cucullus. The cucullus is ovoid, and is entirely anterior and extends well basad of the neck insertion. The vesica has numerous tiny deciduous cornuti. In females, the apophyses posteriores is two-thirds the length of apophyses anteriores. The ostium bursae is sclerotized, bilobed, and has a short median groove. The ductus bursae is sclerotized over the posterior half and the ductus seminalis from near the middle of anterior half. The corpus bursae is membranous with one thornlike signum. Knudson (1986) noted that the male and female genitalia are similar to those of D. leopardana, but the two can easily be distinguished by the forewing coloration and patterning.
Adult ID Requirements: Identifiable from good quality photos of unworn specimens.
Immatures and Development: The larval life history is undocumented.
Distribution in North Carolina
Distribution: Scattered populations of Dichrorampha broui have been found primarily in Coastal Plain habitats from New Jersey southward to Florida and westward to eastern Texas. As of 2022, we have four state records from southern portions of the state, with one from the Piedmont and the others from the 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)

Click on graph to enlarge
Flight Comments: Specimens have been observed from April through June in different areas of the range. As of 2022, our records are all from May.
Habitats and Life History
Habitats: The preferred habitats are poorly documented, but most populations have mostly been collected from Coastal pine forests.
Larval Host Plants: The hosts are undocumented. - View
Observation Methods: The adults are attracted to lights.
Wikipedia
Status in North Carolina
Natural Heritage Program Status:
Natural Heritage Program Ranks: GNR [S2-S3]
State Protection:
Comments: This species appears to be uncommon, but more information is needed on habitat requirements, host plants, distirbution and abundance before the conservation status of this species can be accurately assessed.

 Photo Gallery for Dichrorampha broui - No common name

Photos: 1

Recorded by: Darryl Willis on 2020-05-07
Cabarrus Co.
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