1970] 
Roth — Blattaria 
327 
suggestion about the relationship of species of Hemiblabera to 
Byrsotria and Aspiduchus. 
Rehn and Hebard (1927, p. 278) in erecting the genus Aspiduchus 
stated that it . . is apparently related on one hand to Hemi* 
blabera Saussure, and on the other to Monachoda Burmeister.” The 
male genitalia of Aspiduchus (Figs. 21-23) indicate a close rela- 
tionship to Hemiblabera (Figs. 17-20) but less so to Monachoda 
(Figs. 142, 144, 145) which I place in the Monastriini (see below). 
Rehn’s (1951, p. 7) drawings of the L2d’s of Aspiduchus caverni- 
cola (Fig. 100) and A. borinquen (Figs. 97, 103, 106) show rela- 
tively small differences. It is doubtful that the male genitalia can 
be used to distinguish between these 2 species. 
In Eublaberus spp. the preputial spines occur in more than a single 
row (Figs. 66, 69, 72-74). These spines are more slender and less 
sclerotized in E. distanti (Figs. 69, 72) than in E. posticus (Figs. 
66, 73), as noted by Princis (1950). Hebard (1920, p. 116) states 
that Eublaberus is closely related to Blaberus. However L2d is 
more distinctly hookshaped in Eublaberus than it is in most species 
of Blaberus and for this reason I place it in the second generic 
group. 
Generic Group 3. Hyporhicnoda (Fig. 3°), Minablatta (Fig. 
28). 
In this group L2d is not hookshaped. Rehn (1940) stated that 
Minablatta is related to Blaptica and Eublaberus but is probably 
more closely related to the former. The absence of a hookshaped 
L2d in Minablatta (Fig. 109) places the genus closer to Blaptica. 
However, the elongated preputial spines, occurring in a single row 
in Minablatta (Fig. 109) show a similarity to the spines found in 
Aspiduchus (Fig. 106), Byrsotria (Fig. 75), and Hemiblabera 
(Fig. 96). 
Hyporhicnoda has been placed in the Epilamprinae by Hebard 
(1920), Princis (i960), and McKittrick (1964). However, the 
prepuce of the male has a fringe of spines (Figs. 112, 1 1 5 ) which 
is characteristic of the Blaberinae. Spines are not found on the 
prepuce of any genera belonging to the Epilamprinae; nor have I 
seen these spines in males other than Blaberinae, representing more 
than 90 genera of Blaberidae. In Hyporhicnoda the apex of L2vm 
is more darkly pigmented than L2d so that the junction of the 
2 sclerites is readily discernible. 
2. Monastriini: Hiereoblatta (Fig. 126), Monachoda (Figs. 
123-125), Monastria (Figs. 121-122). Petasodes (Figs. 11 8-120). 
