Entomology Collection TitleImage Bugs Pinned
Species Page - Helotropha reniformis
species list search results ->Helotropha reniformis ->species page

E-mail this Page   
Print this Page   
Link to this Page   

scientific name    Helotropha reniformis    

common name     Kidney-spotted Rustic

Mesic meadows and woodlands; wooded riparian areas.

A medium-size (approx. 3.5-4.0 cm wingspan) dark red-brown moth. There are two forms. The "normal" form has dark red-brown forewings, with a broad contrasting lighter yellow-brown subterminal band. The normal lines and spots are poorly defined, except for the orbicular which is outlined in lighter brown and the prominent narrow boomerang-shaped reniform, which in outlined and partly filled with bright white. The white scales frequently run along the veins, connecting the lower end with the pale subterminal band. Form atra has almost completely dark brown, almost black, forewings, unmarked except for the white or pale yellow reniform. The normal pattern is visible only with close scrutiny. The hindwings in both forms are lighter sooty brown. Antennae are simple and the sexes are similar. Specimens of form atra are very easy to mistake for darker specimens of Apamea cogitata. Apamea cogitata shows no trace of the short black basal streak, faint claviform spot and antemedian and postmedian lines that can barely be made out in atra.

life history
The adults are nocturnal and come to light. There is a single brood annually, with adults flying in late summer and early fall. The larvae are borers in the stems of monocots, in particular sedges (Carex sp.). Reported to sometimes damage young corn in Ohio. They overwinter in the egg stage.

Maritimes south to Virginia, west to BC and California. It occurs throughout most of Alberta, with the exception of the mountains and most of the foothills.

Helotropha reniformis shows few biogeographic affinities, and has been collected from the Lake Athabasca area in the northern boreal forest south to Writing-on-Stone Provincial Park in the arid short-grass prairie region. It's apparent absence in the mountains is difficult to understand. It is noteworthy for the two very different looking forms.

quick link

Comments (0)Add New Comment

Comments are published according to our submission guidelines. The EH Strickland Entomological Museum does not necessarily endorse the views expressed.

Add New Comment (all fields are required)

Related Species Info
Display Hierarchy
References (2)
Specimen Info
There are 25 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (25)
Related Links
Moth Photographers Group


Logo Department of Museums and Collections ServicesLogo University of Alberta