DISTRIBUTION:

Rachesa alegrensis (approximate wingspan: males: 87mm; females: probably larger // forewing length: males: 45mm; females: ) flies in
Peru: Amazonas: Vista Alegre; at elevations around 1950m.

The forewing apex is broader and not as acute as in many other species. The pm line is slightly concave in its lower half. The hindwing outer margin is slightly convex, not as angular as in many of the other Rachesa species.

Visit Rachesa species Comparison Table.

FLIGHT TIMES AND PREFERRED FOOD PLANTS:

Rachesa alegrensis are on the wing in June-July.

Larval hosts are unknown.

ECLOSION, SCENTING AND MATING:

Female Rachesa alegrensis extend a scent gland from the posterior tip of the abdomen to call in the night flying males which become active, probably around 11:30 pm.

EGGS, LARVAE AND PUPAE:

Mature larvae descend tree trunks to pupate in underground chambers.

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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The pronunciation of scientific names is troublesome for many. The "suggestion" at the top of the page is merely a suggestion. It is based on commonly accepted English pronunciation of Greek names and/or some fairly well accepted "rules" for latinized scientific names.

The suggested pronunciations, on this page and on other pages, are primarily put forward to assist those who hear with internal ears as they read.

There are many collectors from different countries whose intonations and accents would be different.

I do not know the meaning or the reason for the genus name "Rachesa".

The species name "alegrensis" is indicative of a specimen tupe location at Vista Alegre, Amazonas, Peru.