
Appearance
Adult: Nearly identical to D. ministra with FW slightly darker, especially toward costa. Outer margin less scalloped. HW darker than D. ministra.Larva: "The larva of D. drexelii is similar to the yellownecked caterpillar. The head and body are black. The cervical shield, or "collar", and front of the thorax are yellow, forming a "yellow neck." There are 11 (counting the ventral line) yellow longitudinal stripes along the body, with the lateral stripes connected at the rear with a small yellow ... patch on abdominal segment nine or on segments eight and nine. Full-grown larvae are 45-50 mm long." - Auburn University Account
References:
Some text fragments are auto parsed from Wikipedia.
https://bugguide.net/node/view/29672