1914.] NATURAL SCIENCES OF PHILADELPHIA. 405 



Measurements (in millimeters). ^ 



Length of body 40 . 5 



Length of fastigium (from eyes) 2.7 



Length of pronotum 9. 



Greatest caudal width of pronotum 5.2 



Length of tegmen 42. 



Length of caudal femur 25 .2 



This species was very shy and scarce in the pine woods at Home- 

 stead. It was only encountered at night, and while some few were 

 heard, but one other than the type was seen. The song of this 

 insect consists of a loud and sustained buzzing note. 



Homorocoryphus malivolans (Scudder). 



Conocephalus hoplomachiis Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 

 190.5, p. 46. (Chokoloskee, Monroe Co., Fla.) 



Detroit, Fla., July 12, 1912; 1 cf . 



After a careful examination of the present specimen, the types 

 of Conocephalus hoplomachus and of Conocephalus malivolans 

 Scudder, we are convinced that hoplomachus represents the female 

 of malivolans. The latter was based on a single male from 

 Cedar Keys, Fla., which remained unique until the very different 

 female was described by us as C. hoplomachus. At that time we 

 examined the description of malivolans, but the sexual differences 

 are so great that we could not recognize the female then in hand as 

 the other sex of Scudder's species. The present specimen enables 

 us to establish the above synonymy, agreeing as the individual does 

 exactly with the original description and clearly being the male sex 

 of the apparently very different hoplomachus. 



The present specimen was taken during the daytime from saw 

 grass growing in knee-high water on the edge of the everglades. 



Odontoxiphidium apterum Morse. 



Homestead, Fla., July 10-12, 1912; 8 a', 9 9 , 2 9 n. 



Detroit, Fla., July 12, 1912; 7 cf , 5 9 , 1 9 n. 



Key Largo, Fla., July 11, 1912; 1 9 . 



Long Key, Fla., July 13, 1912; 1 9. 



Big Pine Key, Fla., July 6, 1912; 4 c^, 1 9 , 3 9 n. 



Key West, Fla., July 3-7, 1912; 18 d', 6 9,6 9 n. 



These specimens average considerably larger than individuals 

 from southern Georgia and northern Florida, although each of the 

 present lots shows in itself considerable individual variation in size. 

 The maximum-sized individuals are from the keys, particularly in 

 the female sex, the greater majority of the males being no larger than 



