DISTRIBUTION:

Rachesa viksinjaevi (approximate wingspan: males: 82mm; females: 116mm // forewing length: males: 40-44mm; females: larger) flies in Peru: Junin; Pasco; at elevations from 1620-3035m.

Compared to R. sinjaevorum this species has a more rounded wing shape where the forewing outer margin is slightly convex in viksinjaevi; straight in sinjaevorum, and more reddish is viksinjaevi.

Rachesa nisa (probably R. viksinjaevi) male, Oxapampa, Pasco, Peru,
2300m, June 2004, courtesy of Hubert Mayer.

Rachesa nisa (probably R. viksinjaevi) male, Oxapampa, Pasco, Peru,
2300m, June 2004, courtesy of Hubert Mayer.

Visit Rachesa species Comparison Table.

FLIGHT TIMES AND PREFERRED FOOD PLANTS:

Rachesa viksinjaevi are on the wing in January-February, July, December. There may be additional flight months.

Larval hosts are unknown.

ECLOSION, SCENTING AND MATING:

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

Rachesa viksinjaevi female, 116mm, Pasco, Peru,
on my home computer only.

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 "viksinjaevi" is honorific for collector Victor Sinyaev.