1916.] NATURAL SCIENCES OF PHILADELPHIA. 225 



form conical, with apex sharply rounded (length 2.6 mm.) (fig. 16). 

 Allotype: 9; Same data as the type. [Hebard Collection.] 

 Description of Allotype.- — Closely resembling in size and form 

 moderately large south Florida females of M. puer, but with principal 

 sulcus somewhat more decided on dorsum of pronotum; color 

 pattern and tegmina (though extremely variable) much as in M. 

 rotundipennis. When compared with this latter species the insect 

 is found to be smaller and much more compact with shorter and 

 more robust limbs. 



Measurements (in millimeters). 



cfcf 9 9 



Type. Paratypes. Allotype. Paratopes. 



Length of body 16.2 15.5 15.8 18.8 20 19.5 



Length of pronotum 3.6 3.7 3.8 4.2 4.1 4.7 



Length of tegmen 3.7 3 3.4 4.3 3.7 3.9 



Greatest width of same 2.3 2.2 2.4 2.9 2.8 2.9 



Length of caudal femur 9.7 9.4 9.8 10.8 10.6 11.2 



Greatest width of same 2.7 2.6 2.7 2.8 2.8 2.7 



The specimens have the caudal margin of the dorsum of the 

 pronotum extremely weakly emarginate mesad, so weak indeed as 

 to be scarcely appreciable to the naked eye except in one female. 

 This character is often found in species of the present group, but 

 nowhere as decided as in M. puer. 



A more or less noticeable truncation of the tegminal apex is present 

 in all of the material before us, with the exception of a single paratypic 

 male. 



In coloration the species generally resembles M. rotundipennis, 

 except that the males differ decidedly in having the ventral margins 

 of the caudal femora sharply pale and quite striking, this marking 

 broader proximad. The females are similarly marked, but to a much 

 less and usually inconspicuous degree. 



The species was found very scarce in scattered woods of low pines 

 and oaks, with a typical ammophytic undergrowth of huckleberry 

 and other low bushes and plants. The species was recognized as new 

 and several hours were spent in minute search before the six examples 

 were taken, all of these being found in an area not one hundred feet in 

 diameter. The insects were wary, but were found to hide constantly, 

 so that by careful approach and guarding with the net the majority 

 were picked up with ease. The species does not jump vigorously. 



Specimens Examined. — 6; 3 males and 3 females. 



Weldon, North Carolina, VII, 24, 1913, (H.), 3 c? , 3 9 , type, allotype 

 and paratypes. 



