3io 
Psyche 
[September 
2. Blaptica , Byrsotria , Hemiblabera, Aspiduchus J Monachoda 
3. Monastria, Pet as odes 
The first group is well defined, although relationship with 
Byrsotria is evident . . . The second group is well defined from 
the first, but whether Monachoda should be considered the maximum 
differentiation of the second group, or a less highly modified member 
of the third onej is a matter of opinion.” The above linear arrange- 
ment was the one preferred by Rehn and Hebard. 
Princis’ (1963) arrangement of some of the genera in the Bla- 
berinae follows Rehn and Hebard, but several additional genera 
were included. 
Brachycolinae: Brachycola, Hormetica , Parahormetica , Sibyllo- 
blatta, Bionoblatta 
Blaberinae: Archimandrita, Blaberus ^ Mesoblaberus , Eublaberus, 
Blaptica, Byrsotria, Hemiblabera, Aspiduchus, Monachoda, Mon - 
astria , Minablatta, Petasodes, Cacoblatta, Hiereoblatta, Styphon 
McKittrick (1964) studied 11 genera of Blaberinae and “for 
convenience” arranged them in the following tribes: 
1. Blaberini: Archimandrita, Blaberus , Blaptica 
2. Brachycolini : Brachycola, Hormetica, Parahormetica , Peta- 
sodes 
3. Byrsotriini: Byrsotria, Eublaberus, Hemiblabera 
4. Monastriini: Monastria 
Male genitalic characters support the separation of genera of 
Blaberinae into 3 (Blaberini, Monastriini, and Brachycolini) rather 
than 4 tribes; and the gentalia of Petasodes indicate that it does not 
belong in the Brachycolini as suggested by McKittrick. The present 
study tends to support Rehn and Hebard’s arrangement, especially 
with regard to the placement of Petasodes. 
I. Blaberini: Archimandrita, Aspiduchus, Blaberus, Blaptica, 
Byrsotria, Eublaberus, Hemiblabera, Hyporhicnoda, MinablattO, 
Styphon (Figs. 1-117). 
Figs. 1-9. 1. (11 ANSP). Archimandrita marmorata (Stoll). San Marcos, 
Nicaragua. 2. (61 USNM). Archimandrita tessellata Rehn. San Jose, 
Costa Rica (det. Rehn). 3. (18 USNM). Blaberus giganteus (L.). St. 
Jean, French Guiana (det. Roth.). 4. (5 USNM). Blaberus craniifer 
Burmeister. Key West, Florida (det. Roth). 5. (N). Blaberus discoidalis 
Serville. Panama (det. Roth). 6. (516 L). Blaberus boliviensis Princis. 
Guayaquil, Ecuador (det. Princis). 7. (514 L). Blaberus anisitsi Brancsik 
(det. Princis). 8. (N). Blaberus atropos (Stoll). Trinidad 1 (det. Roth). 
9. (N). Blaberus parabolicus Walker. Puraquequara, Rio Negro, Amazonas, 
Brazil (det. Roth), (scale = 10 mm). 
