438 
Psyche 
[December 
L2d — This sclerite (Fig. i, L2d) is always separated from 
L2vm ( Fig. i ) by a membrane, and may or may not be clearly sep- 
arated from and lie above the prepuce. In some species (e.g. Mexi- 
cana Group) most of L2d is a sclerotized and integral part of the 
prepuce. 
R2 (retractable genital hook, Fig. 1, R2) — A subapical incision 
is often found on the ventral surface (Fig. 18, SI). 
Li — A deep lateral curved incision or cleft is present (Fig. i, 
C) and a setal brush (Fig. 1, Lib) may or may not be found on the 
dorsal surface. 
Rehn and Hebard ( 1927, p. 210) without specifying the characters 
used, tentatively erected 5 species Groups for Epilarnpra , primarily 
for West Indian species. These Groups and the species included were: 
1. Cubensis Group: — cubensis Bolivar. 
2. Mexicana Group: — insularis Bolivar, tainana Rehn and 
Hebard. 
3. A bdomennigrum Group: — abdomennigrum (De Geer), 
mona Rehn and Hebard. 
4. Burmeisteri Group : — gundlachi Rehn and Hebard, burmeis- 
teri (Guerin), wheeleri Rehn, haitensis Rehn and Hebard, sabulosa 
Walker. 
5. Grisea Group: — quisqueiana Rehn and Hebard. 
Rehn and Hebard (1927) indicated that other species would prob- 
ably fall into these groups. The male genitalia do not support the 
placement of a number of the above species in the groups erected by 
Rehn and Hebard. Based on genital characters I suggest the follow- 
ing species groups of Epilarnpra: Mexicana , Abdomennigrum , Bur- 
meisteri , Sodalis , Shelf ordi, Heusseriana, and Yersiniana. 
Mexicana Group 
[ Epilarnpra mexicana Saussure (Figs. 2-13) ; E. fallax Saussure and 
Zehntner (Figs. 14-23); E. conferta Walker (Figs. 24-43)]. 
This group includes species in which most of L2d is a flattened 
sclerotized plate which is an integral part of, and does not lie above, 
the prepuce (Fig. 5). In mexicana only a small part of L2d on the 
left side is separated from and lies above the prepuce, and on the 
right side the L2d tapers and extends upward toward the L2vm 
(Figs. 2, 5, 8, 10, 11, 12). In fallax the lateral extension of the 
right side of L2d is quite long (Figs. 14, 17, 20, 21). In some con- 
ferta the L2d extends well beyond the left side of the prepuce (Figs. 
24, 27, 29-32, 34) and the extension on the right may vary consid- 
erably in length. The prepuce of mexicana is deeply notched and is 
readily distinguished from the other members of the group. 
