Among Heliothis species adult female genitalia the appendix bursae is prominent, sometimes also spiralled. There are usually two to four typically trifine signa in the bursa. In males genitalia are more or less exclusive to the group such as the elongate, strap-like valve with a simple corona in conjunction with an aedeagus vesica that is often spiralled and tending to have isolated or small clusters of cornuti (Hardwick, 1970). Matthews noted the presence of sclerotised rods on each side of sternum 8 in the male Heliothinae but not in the sister-group, the Stiriinae. These rods are rare in other trifine groups but do not occur in some Acronictinae and Amphipyrinae.
For any region, the Americas..?
There must be quite a few species. If that was for Europe it would not be too hard to extract materials from the existing monographs...
Maria - Do you have Hardwick's monographs from the 1960s, in Memoirs of the Canadian Ent Soc?
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