1 10 
Psyche 
[March 
Geographical collection data, and the specialists who identified 
the specimens, if known, follow these abbreviations. The number 
preceding the abbreviations refers to the number assigned the speci- 
men and its corresponding genitalia (on a slide) which were deposited 
in the museums indicated. 
Results and Discussion 
In a previous paper on Epilampra , Roth and Gurney (1969) fol- 
lowed McKittrick’ s (1964) terminology. In her figure 128 (p. 180) 
of the male genitalia of Epilampra azteca Saussure there are 2 struc- 
tures below L2vm (median sclerite of left phallomere) one of which 
she labeled L2d (dorsal sclerite of left phallomere). In most Epi- 
lampra there is a sclerotized plate which lies at the base of L2vm 
(but separated from it by a thin membrane) (Fig. 1) and Roth and 
Gurney (1969) named this structure L2bp (basal plate of L2). 
However, I have studied the male genitalia of a large number of 
Blaberidae and believe that L2bp is actually L2d and what we and 
McKittrick (1964) called L2d in Epilampra is in reality a modified 
prepuce. In Blaherus (Princis, 1946; Roth, 1969b) and other 
Blaberinae (Roth, unpublished observations) the prepuce has char- 
acteristic spines associated with it and partly surrounds the virga 
(L2d) (See Fig. 12 1 in McKittrick 1964). 
Stal (1874) without mentioning any species proposed the name 
Poeciloderrhis for American Epilampra and separated them from the 
genus Epilampra (which he considered Asiatic-Australian) on the 
differences of front femoral spines. Kirby (1903) split the old genus 
Epilampra , proposing Eleterolarnpra for an Australian species, retained 
Burmeister’s Epilampra for American species with E. hrasiliensis 
(Fab.) as type species, and selected E. verticalis Burm. (a species 
of Brazil and Argentina) as the type of Poeciloderrhis Stal. In his 
1904 catalogue Kirby listed Poeciloderrhis as valid, with verticalis 
as type; he also included under this genus, proxima Brunner, hivit- 
tata Saussure, and maculifrons Stal. In the Genera Insectorum 
fascicle on Epilamprinae. Shelford (1910) listed Poeciloderrhis as 
a synonym of Epilampra , as does Princis (1967a) in his catalogue. 
The species of Epilampra in which males have tergal glands have 
markedly different genitalia than the species which lack these mod- 
ifications. Epilampra verticalis Burmeister has tergal glands on seg- 
ments 1 and 2 and since this species is the type of Poeciloderrhis I 
use this generic name to represent tergal modified species of Epi- 
lampra. 
