2 SUPPLEMENT. 



f Supra-anal lamina of the male and female 



triangular, entire or slightly notched. - PhyllodromiDjE. 



ff Supra-anal lamina of the male more or less 



quadrate; that of the female with 



rounded lobes, or entire broad and 



rounded ------ Epilamprid^;. 



b. Apical ventral segment of tbe female with 



valves. ----- Periplanetid^e. 



In the Heterogamidoe there are exceptions to ibis arrangement ; the 

 females have no arolium between the claws, and such is the case with the 

 males also of Heterogamia Algerica and of Homoeogamia Mexicana. 



Page 1. 

 Fam. 1. BLABERIDiE. 



A. Hind border of the prothorax curved. - - Blabera. 



B. Hiud border of the prothorax triangular. - - Monachoda. 



Blabera gigantea. 



It may be said that several species have been included with this name, 

 but its limits can hardly be ascertained till many specimens have been 

 examined. The specimen from Para agrees with Stoll's figure, pi. 1 d. f. 2, 

 but the sides of the prothorax are less dilated, the fore border is more 

 rounded, the black shield-like patch in the disk contains no pale marks, 

 slightly decreases in breadth hindward, and extends quite to the hind 

 border. The first joint of the antennae is abuut four limes longer than the 

 breadth of the space between the eyes. In the specimen from Rio Negro 

 the prothorax is like that of Stoll's figure; the patch on the thorax includes 

 no pale marks, its sides are undulating, as described by De Wattenwyl, 

 but they are not represented so by Stoll ; the space between the eyes is a 

 little less than the length of the first joint of the antennae; the fore wings 

 are more rounded at the tips than those of Stoll's fig. 1, and of the speci- 

 men from Para. The specimen from Demerara agrees with Stoll's fig. 2 

 as regards the prothorax; the patch comes near to the hind border; it 

 contains some tawny spots, which are not represented by Stoll, but nearly 

 agree with those mentioned by De Wattenwyl ; there is a testaceous stripe 

 on the front, which is not the case in the specimen from Para nor in that 

 from Rio Negro; the first joint of the antenna is nearly four times longer 

 than the breadth between the eyes. The specimen from Tejuca has the 

 prothorax more dilated than it is in the examples from Demerara and from 

 Rio Negro, and still more than in that from Para, with which it agrees in 

 the black patch on the thorax; the fore wings are more rounded at the 

 tips than in the specimen from Para; the .space between the eyes is less 

 than half the length of the first joint of the antennas. In the specimen 

 from Chontales the fore wings are more narrowed at the tips than in that 

 from Para, and still more thau in those of the other three examples before 

 mentioned; the form of the prothorax and its mark are as in the Para 

 specimen; the first joint of the antennae is four times longer than the 

 breadth between the eyes; the legs, except the coxae, are black ; the hind 

 femora have a testaceous stripe; the brown mark on the left fore wing is 



