THE CANADIAN ENTOMOLOGIST. 



173 



A NEW TREE CRICKEF FROM STATEN ISLAND AND NEW 



JERSEY. 



BY WILLIAM T. DAVIS, NEW BRIGHTON, STATEN ISLAND, N. Y. 



In my collection of tree crickets there is a species collected on 

 Staten Island and at Cranford, Manasquan and Farmingdale, in New 

 Jersey, that appears to be undescribed. It resembles (EcantJms atigusti- 

 peufiis, Fitch, more than any of the other native species, but may be easily 

 distinguished from it by its larger size, the marks on the first and second 

 antennal joints, which taken together resemble an exclamation point, and 

 by the absence of any clouded area on the top of the prothorax. My 

 attention was first drawn to the species by collecting three examples 

 together on Long Neck, Staten Island, and later I found that I had some 

 others. It has not so far been found at Lakehurst, in the pine barrens of 

 New Jersey, where CE. angiistipennis is common. 



Figure 7 shows the elevated black marks on the under side of the 



first and second antennal joints of angustipen?iis, while Fig. 8 represents 



the marks as they occur in the new species, 

 which may be more particularly character- 

 ized as follows : 



CEcanthus exclamationis^ n. sp. — Pale 

 greenish-white, including the upper surface 

 of the prothorax, with the top of the head 

 occasionally a little darker. Antennte each 

 with two elevated black marks on the 

 under side ; the one on the first joint shaped 

 like the upper part of an ! point. The mark on the second joint is oblong. 

 Average length from the head to the tip of wing-covers 17 mm.j body, 12 

 mm.; ovipositor, 5 mm.; width of male tegmina, 5 mm. 



Dr. Fitch, in 1856, mentions the black marks on the under side of 

 the antennae of tree crickets, and in his description of CE. niveus, De 

 Geer, he notes six varieties, three of which he names. One of these is the 

 species CE. atigustipeiinis, Fitch, as now considered by authors ; his var. 

 "a" seems to be the new species above mentioned ; " b" is probably Mr. 

 Beutenmuller's //;/!/, or possibly an example of his own fasciatus, and "c" 

 is no doubt (E. qitadripunciatus, Beut. The other two ("e," discoloratus, 



 May, 1907 



Fig. 7. 



Fig. 8. 



