REHN AND HEBARD 245 



In females the yellow area of the distal portion of the abdo- 

 men is reduced in size and decidedly less brilliant than in males. 



The specimens from Puntarenas, and Rio Grande, Costa Rica, 

 have the vertex unusually narrow, appreciably less than two- 

 thirds the width of the proximal antennal joint; a number of 

 specimens have the vertex decidedly wider than usual, and the 

 specimens from St. Thomas, West Indies, and Medellin, Mexico, 

 have this width fully equal to that of the proximal antennal joint. 

 In spite of such variation in this and a few other species, the 

 character may be said to be on the whole of considerable diag- 

 nostic value, particularly when considered in conjunction with 

 other important characters. No single characters may be relied 

 upon for specific determinations in the present genus without 

 disastrous results. 



Measiiretncnts {in. iiiilliiudcrs) of extremes 



Length of tecmen Length of raudal femur Length of 



ovipositor 



o"^ 9.0' 9 



Havana. Cuba 10.9-17.3 11.1-19.7 10.1-12.9 10.9-14.3 S-10.7 



Montego Bay, 



Jamaica... 9.4-17.1 9-17.1 9.2-12.1 9.9-12.3 7-9.2 



Costa Rica. ... 13 . 9-19 . 2 12 . 3-lS .6 12 . 2-13 . 2 12 . 7-13 .2 9.1-9.7 



Ancon, Panama 14.9-18.7 15.7-19.8 13-13.4 13.6-14.4 10.1-11.2 



La Pedrita, Ven- 

 ezuela 13- U). 9 1.1. 7-16.9 12-12 2 12.7-13.1 8.S-8.9 



Cayeime, French 



Cuiana ... 17.2 19.4 13.2 14.0 10.1 



Ea.'^tern Peru . 19-20.9 19.1 13. 3-1."). 4 14.7 9 4 



At Montego Bay, Jamaica, a series was taken in sliort grass 

 along the Montego River — these specimens are distinctly depaup- 

 erate; specimens taken in areas of heavier grass near the jungle 

 at the same locality' are of normal size. Observation of the 

 species elsewhere in the field in Jamaica and Panama, convinces 

 us that the considerable variation in size and tegminal length is 

 due chiefly to immediate environment; local luxuriance of vc^ge- 

 tation appears to be usually accompanied by local aggrandize- 

 ment of individuals of the species of this and many oiher genera 

 of Orthoptera. 



The present insect is known from the Bahamas, Cuba, Haj'ti, 

 Porto Rico and adjacent smaller islands, Jamaica, continental 

 America from A'era Cruz, Mexico, southward through Costa Rica 



TRANS. AM. ENT. SOC, XLI. 



