OBTHOPTEEA OF INDIANA. 



355 



Measurements: Male — ^Length of body, 25 mm.; of tegmina, 42 

 mm.; of posterior femora, 22.5 mm.; of pronotum, 6 mm.; width of 

 tegmina, 13 mm. Female — Length of body, 30 mm.; of tegmina, 

 46 mm.; of posterior femora, 24 mm.; of ovipositor, 5 mm.; width of 

 tegmina, 14 mm. 



In the country it is this insect Avhich is most commonly called 

 "the katydid," and the note of Gyrtophyllus perspicillatus L. is usually 

 attributed to it, but its true note may be represented "by the syllable 

 Hie,' repeated from eight to twenty times at the rate of about four 

 to the second." However, M. laurifolium is probably less common in 

 Indiana than the broad-winged katydid, with which it is confused. 

 I have taken it in but three counties, viz., Putnam, Vigo and Marion. 

 It is evidently attracted by light, being occasionally found in the 

 gutters beneath electric lights. It, perhaps, occurs throughout the 

 State, as its general range is given as the "United States east of the 

 Eocky Mountains," but it is nowhere in Indiana so common as to be 

 injurious. 



The eggs of M. laurifolium are usually glued in double rows on 

 the sides of slender twigs, which have been 

 previously roughened with the jaws and other- 

 wise prepared for a place of deposit. The 

 two rows are contiguous and the eggs of one 

 alternate with those of the other. Those of 

 the same row overlap about one-fourth their 

 length. They are of a grayish brown color, 

 long oval in shape, very flat, and measure 

 5.5x3 mm. They are usually deposited in Sep- 

 tember, hatch the following May, and tho 

 young, in central Indiana, reach maturity dur- 

 ing the first half of August. These eggs have, 

 tember, hatch the following May, and the 

 by persons who found them on their fruit 

 trees, and thought they were the San Jose 

 scale or some other injurious scale insect. 



Prof. C. V. Eiley has written (loc. cit.) a 

 pleasing description of the egg laying habits 

 and call note of the angular-winged katydid, 

 from which I quote at length as follows: 



"The females commence to oviposit early in September, and con- 

 tinue to lay at intervals until the first severe frost. The eggs are 

 occasionally deposited during the day, but the operation usually takes 

 place at night. Selecting a twig of about the size of a common goose 



Fig. 86. Eggs of the Ang- 

 ular-winged Katydid. 

 (After Riley). 



