122 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



onger than the proximal tarsal joints, the cephalic spur forked , 

 larger, curved, forming a strigil. Parapsidal furrows complete; 

 mesophragma present. Abdomen small, ovate, smaller than thorax, 

 the ovipositor not exserted. 



Antennae eleven-jointed, normal, but the funicle joints shorter than 

 usual, all subquadrate, none twice longer than broad. Scape moderate; 

 pedicel usual, rather large, distinctly larger than any of the funicle 

 joints; funicle joint 1 smallest, barely longer than wide, 2 and 3 

 rectangular, each a third longer than wide, subequal; joint 4 some- 

 what shorter and broader, subquadrate; 5 like 4 but slightly larger; 

 6 as long as either 2 or 3 but somewhat broader; club with the two 

 divisions curved but not as much so as in the other species; the distal 

 or third club joint is conic and nearly as long as the combined length 

 of the two proximal joints. Pubescence inconspicuous. 



(From 4 specimens, -inch objective, 1-inch optic, Bausch and Lomb. ) 



Male. Length, 0.70 mm. The same as the female. Abdomen still 

 smaller. Marginal cilia of the fore wings longer, subequal in length 

 to the longest marginal cilia of the posterior wing. 



Antennae 13-jointed, filiform, the joints of the flagellum longi- 

 tudinally striate; club 2-jointed, the joints not different from those 

 of the flagellum. Pedicel small, barely longer than wide, smaller 

 than the first funicle joint; joints of funicle short, joint 1 shortest, 

 somewhat rounded, but only a fourth shorter than the next joint; 

 joints 2 to 9 subequal, not quite twice longer than wide; proximal club 

 joint subequal to preceding joint, the last joint slightly shorter, 

 narrower, bluntly conical. Pubescence inconspicuous, nearly if not 

 quite absent. 



(From 2 specimens, the same magnification.) 



Described from two male and four female specimens sent 

 for identification by Dr. L,. O. Howard and bearing the label 

 "919. Perth, W. Austr. G. Compere." Mounted in balsam. 



Habitat: West Australia (Perth). 



Types: No. 13824, United States National Museum, Wash- 

 ington, D. C. , 2 males, 4 females, each sex on a single slide 

 (2 slides). 



The following table separates the few described species of 

 Stethy nium: 



DIAGNOSTIC TABLE OF THE DESCRIBED SPECIES OF STETHYNIUM ENOCK. 



1. Posterior wings slender, normal, their longest marginal cilia 

 (caudad) no longer than the longest marginal cilia of 

 the fore wing. Joints of antennal funicle longer, the 

 second joint at least twice longer than wide. Abdo- 

 men short, but conic-ovate, the ovipositor slightly ex- 

 serted. Fore wings obtusely pointed at apex. 



