332 PnoCEEDIXGS of the XATIOXJL MFSEFM. vol. XX. 



densely imnctate metazona. Prosternal spine long, cylindrical, slightly 

 retrorse, in the male bluntly pointed, in the female bluntly rounded and 

 slightly appresseil; interspace between niesosternal lobes about tliree 

 times as long (male) or half as long again (female) as broad, the meta- 

 sternal lobes attingent (male) or api)roximate (ft^malej. Tegmina not 

 quite reaching the tips of the hind femora, moderMtely broad, tapering 

 only in the apical third, brownish testaceous and immaculate (male) or 

 feebly macidate along the discoidal area (female); witigs moderately 

 broad, hyaline with blackish fuscous veins, lighter coh)red in the anal 

 area. Mesothoracic epimera black, separating the mostly luteous bor- 

 dering episterna. Fore and middle femora somewhat tumid in the 

 male; hiiul femora slender, luteo-testaceous with an olivaceous tinge, 

 more or less ferruginous above, the outer face often more or less minutely 

 eloude<l irregularly with f-iscous, the inner half of the upper face thrice 

 spotted with black, besides the black geniculation, the under surface 

 lute<ms or tiavous; hind tibiae glaucous, the base lutescent with a fusco- 

 glaucous annulatio.i, the spines black with })allidbase, eleven to thir- 

 teen, usually twelve, in nuniber in the outer series. P^xtremity of male 

 abdomen a little clavate, somewhat recurved, the supraanal plate sub- 

 triangular with sinuous sides, broadly elevated margins, feebly acut- 

 angulate apex, and brief, triangular, basal, median sulcus, bounded by 

 elevated ridges which meet in the center of the plate: furcula consist- 

 ing of a pair of adjacent, parallel, brief, blunt denticulations overlying 

 the median sulcus of the supraanal plate; cerci long and slender, 

 broadly and mesially constricted, apically spatulate, gradually and 

 considerably incurved, the external surface of the ajucal portion in no 

 w ay sulcate but rather tumid, the tip attaining the extremity of the 

 supraanal plate; infracercal plates broad, rapidlj- narrowing, as long or 

 almost as long as the supraanal ])late: subgenital plate very narrow, 

 subequal, the apical margin in no way elevated or Haring, well rounded, 

 entire. 



Length of body, male, 18.5 mm., female, 27.5 mm.; antennae, male, 10 

 mm., female, 10.*J5 mm.; tegmina, male, 13 mm., female, 17.5 mm.; hind 

 femora, male, 11.75 mm., female, 15 mm. 



Three males, 4 females. Key West, Florida, Morrison; Tallahassee, 

 Florida, December, F. H. Snow (T^niversity of Kansas). 



This species is very distinct from any other known to me. and reminds 

 one strongly of Paroxya. 



25. COLLIXUS SERIES. 



This is a tolerably homogeneous grouf), in which the prozona of the 

 male is quadrate or nearly so, varying from a little longitudinal (in one 

 s])ecies distinctly longitudinal) to a little transverse, and the interspace 

 between the mesosterual lobes in the same sex ranges from a little 

 longer than broad to twice as long as broad. The tegmina are always 

 fully developed, rarely do not surpass the hind femora, and are more 



