SUBFAMILY VI. OKCAXTIII \\K. 7 I C J 



other insect music. The phrase pr-c-c-c does not sustain the same 

 uniform pitch, but dies away in a slightly lower key, a change 

 which is hardly noticeable to the untrained ear. Each note is a 

 mysterious, momentary wail amidst the shadowy foliage of the 

 oaks, and seems like the voice of a complaining spirit interrupting 

 the serenity of the night." 



337. OKCAXTIIUS EXCLAMATIONIS Davis, 1907, 173. Davis's Tree Cricket. 

 Somewhat larger and stouter than angustipennis. Pale greenish- 

 white; occiput and vertex pale to orange yellow; first antennal segment 

 swollen in front, the protuberance with a black club-shaped mark, second 

 segment with a short dash directly above, the two marks together appear- 

 ing like an inverted exclamation point. Pronotum slightly shorter and 

 wider than in angustipennis, the lower portion of lateral lobes more flat- 

 tened. Tegmina of male slightly longer and broader. Wings more strongly 

 protruding, exceeding tips of cerci. Length of body, $ and $ 12 15; of 

 tegmina, $ and $ , 13 14 ; of ovipositor, 5 mm. Width of tegmina, $ , 

 5 5.5 mm. 



Central Park and Staten Island, N. Y., August (Davis). Not 

 yet identified from Indiana, though it doubtless occurs in the 

 State, as the known range extends from Connecticut west to Cedar 

 Point, Ohio and Hollister, Mo. and southwest to Clarksville and 

 Johnson City, Tenu. About New York City Davis finds it mainly 

 on the post-oak, Quercus minor (Marsh) and other species of oak, 

 often in company with 0. angustipennis to which it is very closely 

 related. 



Fulton (1915, 31) states that "The song of exclantationis is 

 intermittent and non-rhythmical and most resembles the song of 

 angustipennis. The beginning of each note is comparatively 

 weak, but the sound increases in volume and slightly in pitch and 

 continues uniformly until it abruptly ends. In quality it most 

 resembles the distant singing of the common toad." Females 

 kept in captivity deposited many eggs in the bark of oak branches 

 between half an inch and an inch in diameter. The habits of ovi- 

 position are very similar to those of 0. nireus as the female "would 

 fasten a drop of excrement to the bark before depositing the egg 

 and after pulling out the ovipositor would pick the pellet up and 

 force it into the hole. She would then chew off small pieces of 

 bark and add them to the plug, and spend five or ten minutes 

 putting on the finishing touches." 



338. OECANTIIUS NIGBICOBNIS F. Walker, 1869, 93. Black-horned Tree 

 Cricket. 



Size medium and form robust for the genus. Greenish-yellow; head 

 and pronotum either wholly black or with three more or less distinct length- 

 wise black stripes; legs yellowish with a blackish tinge or wholly black; 



