INSECTS 



crosswise vein (fv) at the base of the left tympanum (Tm) is 

 the file vein. It is shown from below at C where the 

 broad, heavy file (/) is seen with its row of extremely 

 coarse rasping ridges. The same vein on the right wing 

 (B) is much smaller and has no file, but the inner basal 

 angle ot the tympanum is produced into a large lobe bear- 

 ing a strong scraper (s) on its 

 margin. 



The quality of the katy- 

 did's song seems to differ 

 somewhat in different parts 

 of the country. In the vicin- 

 ity of Washington, the in- 

 sects certainly say ka-ty-did 

 as plainly as any insect could. 

 Of course, the sound is more 

 literally to be represented as 

 ka ki-kak', accented on the 

 last syllable. When only two 

 syllables are pronounced they 

 are always the first two. 

 Sometimes an individual in a 

 band utters four syllables, 

 "katy-she-did" or ka ki-ka- 

 kak\ and again a whole band 



Fig. 26. Wings and the sound-mak- IS heard Singing ill four HOtes 



ing organs of the male katydid w j tn un Iy an Occasional 



A, left front wing, showing the greatly ; „ ■ ; _ .v 1. ■ 1 



enlarged tympanal area {Tm), with its S,11 g er g 1VI11 g f nree - ' * »» Said 



thick file vein (/»). B, base of right that in certain parts of the 



fore wing, with large scraper (j) on its o ^L ^L 1 j'j • 11 j 



inmr angle, but with a very small file S ° Uth the Katydid IS Called 



vein. C, under surface of file vein of a " Cackle - lack," a name 



left wing, showing the large, flat, 1 • 1 " 1 1 ■ 1 



coarsely-ribbed file (f) which, it must be admitted, 



is a very literal translation of 

 the notes, but one lacking in sentiment and unbefitting an 

 artist of such repute. In New England, the katydids 

 heard by the writer in Connecticut and in the western 

 part of Massachusetts uttered only two syllables much 



[48] 



