INSECUTOR INSCITI^ MENSTRUUS 31 



Bancroftia persephassa Dyar & Knab, Smith. Misc. Colls., Quart. 

 Iss., lii, 254, 1909. 



This synonymy has not before been noted, and might as well 

 be adduced here, as well as the following correction to my 

 paper (Ins. Ins. Mens., vi, 113-115, 1918) : 



Mansonia justamansonia Chagas. 



Taeniorhynchus justa mansonm Chagas, Nov. Esp. de Cul. Braz., 



23, 1907. 

 Taeniorhynchus juxta-mansonia Peryassu, Os Culic. do Brazil, 



223, 1908. 



THE MALE OF PSOROPHORA COFFINI 

 DYAR & KNAB 



(Dipt era, Culicidce) 

 By HARRISON G. DYAR 



This species, heretofore known only in specimens from the 

 Bahamas, was bred in St. Thomas, Virgin Islands, by Dr. E. 

 Peterson, from larvae in pools following heavy rains. The 

 male is now described. 



Psorophora coffini Dyar & Knab. 



Janthinosoma coffiiii Dyar & Knab, Proc. Biol. Soc. Wash., xix, 

 134, 1906. 



Male. Coloration as in the female. Hypopygium. Side 

 pieces about three times as long as wide, truncate at tip ; 

 clasper inserted at the outer angle, slender at base, the tip also 

 small, greatly swollen mesially ; a stout claw at tip. Claspette 

 three-fourths as long as the side piece, stout, fused to the side 

 piece for its basal half ; outer part free, obliquely truncate, 

 many setae along the inner surface of the truncation, the tip 

 narrow and bearing two broad distorted filaments, one 

 S-shaped, the other hooked ; also a similar but delicate curved 

 filament at the end of the row of setae. Tenth stemites nor- 

 mal. Aedoeagus small, conical. Two very stout spines repre- 

 sent the ninth tergites, without the usual basal enlargement. 

 Posterior margin of the eighth segment with three very stout 

 setae on each side. 



