332 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL.XX. 



densely punctate metazona. Prosternal spine long, cylindrical, slightly 

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

 slightly appressed ; interspace between mesosternal lobes about three 

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

 sternal lobes attingent (male) or approximate (female). Tegmina not 

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

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

 feebly maculate along the discoidal area (female); wings moderately 

 broad, hyaline with blackish fuscous veins, lighter colored in the anal 

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

 dering episterna. Fore and middle femora somewhat tumid in the 

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

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

 clouded irregularly with fuscous, the inner half of the upper face thrice 

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

 luteous or flavous; hind tibiae glaucous, the base lutescent with a fusco- 

 glaucous annulation, the spines black with pallid base, eleven to thir- 

 teen, usually twelve, in number in the outer series. Extremity 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 supraaual plate; cerci long and slender, 

 broadly and mesi.ally constricted, apically spatulate, gradually and 

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

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

 supraanal plate; infracercal plates broad, rapidly narrowing, as long or 

 almost as long as the supraanal plate; subgenital plate very narrow, 

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

 entire. 



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

 mm., female, 10.25 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 (University of Kansas). 



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

 one strongly of Paroxya. 



25. COLLLNTJS SERIES. 



This is a tolerably homogeneous group, in which the prozona of the 

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

 species distinctly longitudinal) to a little transverse, and the interspace 

 between the mesosternal 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 



