206 NORTH AMERICAN MELANOPLI (ORTHOPTERA) 



development of the dorsal lobes and the lamellation of the dorsal 

 pair of parameres. 



Type.— $ ; Fort Myers, Florida. September 13 to 15, 1917. 

 (Rehn and Hebard). [Hebard Collection, Type No. 1296]. 



Size medium large and form robust for the genus. Head, pronotum, 

 mesonotum, metanotum, pleura, microscopic tegminal scales, tympana, 

 prosternal spine, furcula, supra-anal plate (except that the lateral margins 

 are developed proximad in a usually prominent proximal node or tooth), 

 cerci, paraprocts, pseudosternite and subgenital plate as here described for 

 aptera simplex. Penis with a large base, dorsal lobes greatly reduced when 

 compared with those of aptera, produced latero-cephalad (on each side of 

 the erect, adjacent, sharp, slender projecting tips of the four parameres) 

 as much smaller but similarly shagreenous, rounded (very often somewhat 

 irregular) flaps; exposed distal portions of parameres distinctive, all 

 adjacent, straight, attingent, erect and slender, the dorsal pair lamellate, 

 in lateral aspect tapering evenly to their acute apices and projecting the 

 same distance as the ventral pair, the latter aciculate. 



Allotype. — 9. ; same data as type. [Hebard Collection]. 



As described for aptera simplex except for the distinctive lateral pale 

 pronotal bands discussed above. Apparently indistinguishable from females 

 of aptera coquinae except through distributional data. 



The extremes of the series are included in the following measurementes. 



5-a -i 



o o g %2 o S 



•s •* B — ' § •*<_< 



lb §« IfU £1 



Ocala, Florida 18.7 to 20.8 4. to 4.5 2.9 to 3.2 10.3 to 11.8 



Lake Jovita, Florida 14.6 to 16.2 3.5 to 3.8 2.1 to 2.7 8.8 to 9. 



Fort Myers, Florida. Paratypes. 18.3 to 20.5 3.8 to 4.3 2.8 to 3.2 9.8 to 11.3 



Yankeetown, Florida 27.8 to 39.4 5.9 to 6.2 5. to 5.6 13.8 to 14.1 



Lake Jovita, Florida 23. 4.7 3.8 11.2 



Fort Myers, Florida. Paratypes. 27.5 to 32.6 5.5 to 6.3 5. to 5.7 13.2 to 15. 



Size in the present species is again clearly influenced largely by con- 

 ditions of immediate environment and is little affected by geographic 

 distribution. 



