258 PROCEEDINGS OF THE ACADEMY OF [June, 



In other respects the southern Florida specimens are inseparable 

 from those taken farther north, and can certainly not be considered 

 worthy of racial distinction. 



The specimens from Long Key and Key West are paler than is 

 usual in southeastern individuals of this species, but show no approach 

 whatever to the Cuban Schistocerca pollens. 



At Miami this species was not uncommon in the pine woods; it 

 was occasional on the Keys and was noticed to be plentiful on Long 

 Key among beach vegetation on the shore. 



Schistocerca damnifica oalidior subsp. nov. 



This southern or Lower Austral representative of Schistocerca 

 damnifica of the Upper Austral Zone is separated from the typical 

 form by the greater general size, the more elongate and proportion- 

 ately much slenderer tegmina, longer and more filiform antennse 

 and slenderer caudal femora. The insect is, in the new form, much 

 more elongate than in damnifica sensu strictiore, and the general 

 appearance is quite different, but in analyzing the characters we find 

 it hard to express the differences except in a few features. 



The median carina of the pronotum is, in the new form, very 

 generally less elevated and arcuate, and more depressed when seen 

 from the side, but this is not absolute as quite a few specimens of 

 S. damnifica calidior have this carina appreciably arcuate. The 

 width of the marginal and discoidal fields of the tegmina, taken at 

 the distal third, is in the male of true damnifica (ex New Jersey) 

 contained four and one-half to four and three-quarters times in the 

 greatest tegminal length, in the female of the same form this pro- 

 portion varies from the same as in the male to having the tegminal 

 width contained five times in the tegminal length. The male of 

 the new form has the same width of the tegmina contained from six 

 to nearly seven times in the tegminal length, while the female has 

 the width contained from five and one-half to six and one-quarter 

 times in the length. 



The caudal femora of damnifica s. s. have the greatest width con- 

 tained from four to four and one-quarter times in the length of the 

 -a me, while S. damnifica calidior has the width of the same con- 

 tained four and one-half times in the length. 



The original description of damnifica is clearly based on the northern 

 form, the measurement of length (37 mm.) perfectly fitting northern 

 female specimens, while this measurement is much surpassed in that 

 sex of the southern form. The type locality — Tennessee — is near 

 the range of the southern race, and specimens from that region do 



