Cockroaches, Locusts, Grasshoppers, and Crickets 149 
indicated in the figure. In the genus Tettigidea the antennae have from 
15 to 22 segments, while in Tettix they have only 12 to 14 segments. Tet¬ 
tigidea lateralis (Fig. 195) is a common species yellowish brown in color, 
more yellowish underneath. It is rather robust and the pronotum extends 
beyond the tip of the abdomen. 
Included in the family Locustidae are katydids, meadow grasshoppers, 
cave-crickets, wingless crickets, western crickets, Jerusalem crickets, and 
what not, but no locusts. The general reader ..of natural history should 
always keep clearly in mind the 
sharp distinction made by natu¬ 
ralists between “scientific” and 
“vernacular” names. The ver¬ 
nacular name locust is applied 
to insects of the family Acri- 
diidae, but not to any of the 
members of the family whose 
scientific name is Locustidae. 
Of the Locustids the best 
known representatives are un¬ 
doubtedly the katydids. Anna 
Botsford Comstock, the nature- 
study teacher of Cornell Uni¬ 
versity, introduces them to her 
readers as follows: “The 
chances are that he who lies 
awake of a midsummer night 
must listen, whether he wishes 
to do so or not, to an oft- 
repeated, rasping song that 
says, ‘Katy did, Katy did; she 
did, she didn’t,’ over and over 
again. There is no use of won¬ 
dering what Katy did or didn’t 
do, for no mortal will ever 
know. If, when the dawn 
comes, the listener has eyes „ , . , . . 
J riG. 199.—Broad-winged katydid, and leaf with 
Sharp enough to discern one of katydid eggs along edge. (Natural size.) 
these singers among the leaves of some neighboring tree, never a note of 
explanation will he get. The beautiful, finely veined wings folded close 
over the body keep the secret hidden, and the long antennae, looking like 
threads of living silk, will wave airily above the droll green eyes as much 
as to say, ‘Wouldn’t you like to know?’” 
