JAMES A. G. REHN 219 



within its margins: cerci elongate, equal to the l)ody in length, tapering: 

 subgenital plate short, scooi)-shai)ed, the distal margin narrowly \'-omarginate, 

 this giving the caudal aspect of the jjlate a reversed "hair-lipi)ed" appearance. 

 Cephalic and median femora suhequal in length, each twice as long as the 

 pronotal disk: cephalic tibiae with the cephalic face bearing a small elliptical 

 tympanum, the caudal face imperforate. Caudal femora but faintly shorter 

 than the body, robust, rather sharply tapering to the relatively small but ab- 

 breviate distal extremity : caudal til)iae very faintly longer than the femora, the 

 dorsal margins with four pairs of articulate spines, which are not directly op- 

 posite one another in position, the external ones the longer and all faintly 

 arcuate, dorsal margins distinctly spinoso-serrate between the articulate spines, 

 the external margin formula reading distad (from area bearing large spines 

 only) liiiiiliiiiiliil, the external margin formula reading liiiliiiliil; distal 

 internal spurs with the dorsal one very long and acuminate, reaching slightly 

 distad of the middle of the metatarsus, the median one slightly shorter than the 

 dorsal one, the ventral one quite short, distinctly less than one-half as long as 

 the median one; distal external spurs with size gradation as in the internal 

 series, but the length of all distinctly less than in the other series: caudal 

 metatarsi biseriate serrulate dorsad, the external and internal margins each 

 with seven spinulations, the disto-internal spur about one-half again as long as 

 the external one. 



General color kaiser brown to ochraceous-tawny (on lower head, mouth- 

 parts, palpi and coxae), the abdomen miunmy brown, the tegmina pale chest- 

 nut-brown; cerci passing from mummy brown (proximad) to ochraceous-tawny; 

 antennae (exclusive of proximal joint) chestnut-brown proximad, narrowly 

 l>uffy annulate, to ochraceous-tawny distad; eyes pale olive brown. 



Length of body, 19 mm.; length of pronotum, 3.5; greatest (caudal) width 

 of pronotum, 4.1; length of tegmen, 8.2; greatest width of dorsal field of teg- 

 men, 5.7; length of caudal femur, 12.5; length of caudal tibia, 13.3. 



The type of this most interesting species is unique. 



ENEOPTERINAE 

 Tafalisca paulista new s[)ecies (Plate X, figs. 23, 24 and 25.) 



Apparently related to T. hrasiliana, from "Brazil," and hahien- 

 sin, from northeastern Brazil, differing from brasiliana in the 

 much more elongate, more slender caudal tibiae, in the spining 

 of the caudal metatarsi, in the acute apex of the ovipositor, in 

 the largely infuscate pronotum, in the pencilling of the tegminal 

 venation and the coloration of the limbs; from bahiensi.s the now 

 species differs in the more elongate lind)s, particularly the caudal 

 pair, the smaller apex of the caudal femora, the nuich more elong- 

 ate caudal tibiae, the more compressed head and pronotum, the 

 latter in consequence more longitudinal, the relatively broader 



TRANS. AM. ENT. SOC, XLIV. 



