40 Journal New York Entomological Society.. [Vol. xiv. 



Perspicillatus is not a rare insect in certain localities in the 

 vicinity of Washington. On Plnmmer's Island, Md., some miles 

 above the city, it is one of the many insect musicians which make a 

 night spent there so enjoyable. This island, the site of the club 

 house of the 'Washington Biological Field Club,' is one of the most 

 primitive regions within reach of Washington. On the island are 

 many large chestnut trees and in these trees live the katydids, which, 

 with the aid of numerous other orthopterous musicians, make the 

 August night one long dream of blended melody. A midsummer 

 night spent with congenial spirits in the club house on Plummer's 

 Island is a pleasant experience not easily forgotten. 



Cyrtophyllus elongatus, new species. 



Very closely allied to the preceding species but usually distinguishable with con- 

 siderable certainty by the smaller size and especially by the much more elongate 

 elytra of the female. The smaller size and more elongate elytra of the females give 

 them a decidedly more slender appearance than seen in any other species of the 

 group. The elytra are variable in shape, sometimes having the posterior border 

 nearly straight and sometimes quite as convex as the costal margin. 



Length, pronotum, male, 5; female, 5-5.75; elytra, male, 33- 

 34; female, 32-38; posterior femora, male, 17-20 ; female, 19-20.5 ; 

 subgenital plate, male, 12-13. 5 ; ovipositor 16-18; width, prono- 

 tum, male, 5.5 ; female, 5.5-6 ; elytra, male, 18-18. 5 ; female, 13.5- 

 16; subgenital plate, male, 2.25-2.5; ovipositor, 3-3.5 mm. 



Type number 9135 U. S. National Museum. 



Four males, seven females from Pennsylvania, Virginia, Indiana 

 and Texas. Type male and female from Crawford and Fountain 

 Counties, Indiana, August. (W. S. Blatchley.) 



This species, as seen from the above mentioned localities, occupies 

 about the same territory as the preceding species, extending however 

 a little further south. But perspicillatus will probably be found to 

 occur in the gulf states also. 



Mr. D. Clemmons took a male specimen of this species on Piney 

 Branch, D. C. It was stridulating, and he says the notes were sharper 

 and more brisk than those of perspicillatus. I have found the females 

 at Falls Church, Virginia, in late October, where they were killed by 

 frost and had dropped to the ground. A female of perspicillatus was 

 found under similar circumstances on Plummer's Island by Mr. 

 H. S. Barber on October 17 of last year. 



