DISTRIBUTION:

Winbrechlinia sinjaevi (wingspan: males: mm; females larger than males; forewing length: males: 28-32mm; females: ??) flies in
Colombia: Cesar: Sierra Nevada da Santa Marta: Pueblo Bella at elevations of 2700m.

In both males and female, the slightly darker pm line is cut by orangey-brown veins. Some males have a segmented white band tracing the outer edge of the pm line. In other males the same lighter line is vestigial at best. Females seem to have the outer white banding more conspicuous and with a somewhat scalloped appearance.

In both males and females the fringes are white at the outer ends of the wing veins.

The outer edge of the forewing cell is somewhat thickened and darker, and in males is highlighted inwardly by a diffuse white dot or tracing.

Winbrechlinia sinjaevi male, Pueblo Bella, Sierra Nevada de Santa Marta, Cesar, Colombia
September 2016, 2700m, courtesy of Ron Brechlin.

Winbrechlinia sinjaevi male (verso), Pueblo Bella, Sierra Nevada de Santa Marta, Cesar, Colombia
September 2016, 2700m, courtesy of Ron Brechlin.

FLIGHT TIMES AND PREFERRED FOOD PLANTS:

Winbrchlinia sinjaevi is probably single brooded throughout most, if not all, of its range. Adults are likely on the wing in September. There are probably additional flight months.

ECLOSION, SCENTING AND MATING:

Females extend a scent gland from the tip of the abdomen, and the night-flying males pick up and track the airbourne pheromone plume with their well-developed antennae.

Winbrechlinia sinjaevi female, Pueblo Bella, Sierra Nevada de Santa Marta, Cesar, Colombia
September 2016, 2700m, courtesy of Ron Brechlin.

Winbrechlinia sinjaevi female, Cesar, Colombia
2018, courtesy of Viktor Sinjaev.

Adults rest during the day on the foliage or trunks of pines or other hosts, flying only at night. Both males and females respond to light.

EGGS, LARVAE, COCOONS AND PUPAE:

Early instar larvae typically feed gregariously. Late instar larvae become more widely dispersed on host trees and understory vegetation.

Larval Food Plants

It is hoped that this alphabetical listing followed by the common name of the foodplant will prove useful. The list is not exhaustive. Experimenting with closely related foodplants is worthwhile.

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