New Jersey Butterfly Club

A chapter of the North American Butterfly Association (NABA)

Hoary Edge

Achalarus lyciades

Identification: Small—1.65” (a little smaller than Silver-spotted Skipper). Above: FW and HW dark brown, with partial band of rectangular, translucent, golden spots across mid-FW. Unlike Silver-spotted Skipper the golden spots usually surround a small triangle of brown. Below: FW and HW mottled dark brown at the base. Outer portion of FW mottled light brown, and HW with a large, rather diffuse white patch along entire trailing edge. (In contrast, Silver-Spotted has a solid, brilliant white patch across middle of HW.) Translucent golden band on FW is usually visible.

NJ Status and Distribution: Resident. Uncommon and local throughout the northernmost counties, but very rare from Central Jersey south.

NJ Range Map-Hoary Edge

Habitat: Dry to moist fields and wood edges. Unlike Silver-spotted, rarely visits gardens.

Flight Period: One brood, flying from late May to late July with a peak from mid-June to early July. Extreme dates: North Jersey 5/22—7/21; South Jersey 6/28—8/3 (2 records, not reported from South Jersey since 2013).

Caterpillar Food Plants: Legumes such as ticktrefoils (Desmodium) and bush-clovers (Lespedeza).

Overwintering Stage: Pupa.

Good Locations: Ramapo Mountain SF, Mountainside Park.

Comments: Much less common than Silver-spotted Skipper and the cloudywings. On a good day an active observer may see up to 5, but on most days none are seen.


Hoary Edge

Mills Reservation, Essex Co., NJ, 6/23/05.


Hoary Edge

Mountainside Park, Morris Co., NJ, 6/3/11.


Hoary Edge eggs

Eggs on Showy Ticktrefoil (Desmodium canadense)


Panicled Tick Trefoil

Panicledleaf Ticktrefoil (Desmodium paniculatum). This is one of several species of legumes used as caterpillar food plants by Silver-spotted Skipper and Hoary Edge.