508 FAMILY VII. TETTIGONIID.E. THE KATYDIDS. 







7.98.9, $, 8.1; of tegmina, $, 5.68.1, $, 2.3; of hind femora, $, 16.4- 

 -1S.8, $, 18.4; of ovipositor, 19.2 mm. 



An examination of the type, and also of a pair of this form in 

 the U. S. National Museum from Chuluota, Fla., shows it to be 

 intermediate in size between sabalis and subapterus, with the 

 supra-anal notch also intermediate in form. It has not only the 

 black markings of siibapterus but the relative length and form of 

 the male tegmina are exactly as in that species and not as in 

 sabalis and sleighti as stated by R. & H. In siibapterus, davisi, 

 hebardi and relini the tegmina are one-fourth longer than broad, 

 as long as or slightly longer than pronotum and with tips narrow- 

 ly obliquely rounded, while in sabalis and sleighti they are as 

 broad or slightly broader than long, less than two-thirds the length 

 of pronotum, the tips broadly obliquely rounded. As R. & H. ad- 

 mit (1916, 2G1) that there is a "considerable amount of size varia- 

 tion" and a "decided amount of variation in the shape of the supra- 

 anal notch" in their type series, I can only regard da-visi as a va- 

 riety of subalterns, it being apparently an intermediate form be- 

 tween that species and sabalis. 



The types of davisi were from Billy's Island, Okefenoke Swamp, 

 Ga., where siibapterus also occurs. The males were taken at night 

 when the}' were found in numbers stridulating in the under- 

 growth of the pine woods. 



229b. BELOCEPHALUS SUBAPTERUS HEBARDI Davis, 1912a, 123. Hebard's 



Cone-head. 



Differs from siibapterus only in having the extremities of the sub- 

 genital plate, near the insertion of the styles, bent upward and inward 

 and slightly produced into sharp points. The form, size, color, dark 

 markings of antennae, head and thorax, length and form of tegmina and 

 supra-anal notch of male are precisely as in subapterus. The females of 

 the two forms are very similar, the ovipositor of hebardi being slightly 

 longer, straighter and more slender than in typical subapterus. 



Parish, Fla., July 26, Sept. 21 (Daris). Described from Punta 

 Gorda, Fla., where it occurred in November on the same clumps 

 of palmetto as B. sabalis. In the Philadelphia collections also 

 from Ft. Myers. Davis states that it was "more retiring in habits 

 than sabalis and sang a slow z<'('L--,:c<'l--.:cck." I regard it as only 

 a variety of subaptrrus. 



230. BELOCEPHALUS EXCAVATUS Davis, 1915, 98. 



Smaller than subapterus, color and black markings on antenna?, head 

 and pronotum as in that species. Fastigium sharp-pointed, slightly bent 

 downward and tipped with black. Antennae longer than body. Abdomen 

 with a well defined interrupted carina. Femora and tibiae of all legs 



