CLASSIFICATION al 
pair membranous, ample, closely reticulate, plicate along the 
numerous radiating principal’ veins. Abdomen with ten or 
eleven segments. Eight families: Forficulidee, Hemimeridz 
(Fig. 13), Blattide, Mantidz, Phasmide (Fig. 240), Acri- 
diidzee (Fig. 14), Locustide, Gryllide. Over ten thousand 
species are known. 
Some authors prefer to separate Forficulidee from Orthop- 
tera as a distinct order, for which Brauer and Packard pre- 
serve the old term Dermaptera of Leach, while Comstock uses 
Westwood’s term Eupleroptera. 
Hemimeridze consist at present of two African species 
whose affinities appear to he with Forficulide, but deserve 
further study. 
4. Platyptera.—Metamorphosis direct. Mouth parts man- 
dibulate. Wings, 1f present, two pairs, delicate, membranous, 
equal or hind pair smaller, and with the principal veins few 
and simple. Integument usually thin. Nymphs thysanuri- 
form. Two suborders. 
Suborder Corrodentia.—Including three families, as fol- 
lows: 
Termitide. — Eyes facetted. Antenne 9-31 _ jointed. 
Mouth parts prognathous or hypognathous.' — Prothorax 
large. Wings elongate, alike, membranous, delicate, with 
indefinite reticulation and with a characteristic basal suture. 
Abdomen elongate, with ten segments and a pair of short, 
two-jointed anal cerci. Integument delicate. Social in habit. 
Example, Termes (Fig. 273). Over one hundred species are 
known. 
Comstock places Termitidze in an order by themselves, 
Tsoptera. 
Embude.— Eyes facetted. Antenne 15-32 jointed. 
Mouth parts prognathous. Thorax elongate, prothorax re- 
duced. Wings (sometimes absent) elongate, membranous, 
delicate, with few and feebly developed longitudinal and cross 
veins. Abdomen elongate, with ten or possibly eleven seg- 
*Prognathous, directed forward; hypognathous, directed downward. 
