124 Psyche [December 



large, not raided at angle to general slope of somites excepting in 

 caudal region. Posterior margin of carinse in anterior region 

 straight, slightly bent caudad in middle region, more so in posterior 

 region, but only the last few acutely angularly produced. 



Vertigial sulcus distinct, ending abruptly at or a little above 

 upper level of antennal sockets. Occipital foveolse 2+2. 



In the male the sternites and the coxae are without special proc- 

 esses. 



In the gonopods of the male the principal or distal division is 

 stout at the base and narrows gradually distad; it extends ventrad 

 and then curves across to the other gonopod and then coils dorsad; 

 near the point where it begins the bend dorsad it is somewhat geni- 

 culate, the portion beyond the geniculation being more slender 

 and somewhat doubly or sigmoidally curved with the acute tip 

 bend mesad almost at right angles ; it is densely pilose at base on the 

 mesal side and less strongly so along the edge to near the level 

 where the bend across to the other side begins. The basal process 

 is short, straight and acute and extends obliquely caudomesoven- 

 trad to near the tip of the principal process of the opposite gonopod. 



Length of type (male) about 35 mm.; width, 10 mm. 



Locality: Mississippi: Agricultural College. Six specimens col- 

 lected in the fall of 1916 by J. W. Bailey. 



Nannaria gen. no v. 

 Genotype — N . minor sp. nov. 



In addition to the type species, Fontaria tennesseensis Bollman, 

 N . media sp. nov. and N . infesta sp. nov., described below, belong 

 in this genus. These forms are all small in comparison with Fon- 

 taria and are characterized in the main by the structure of their 

 male gonopods in which the principal process is rather short and 

 nearly straight or only moderately curved, never coiled, and not 

 ordinarily passing the median line or crossing that of the other 

 side, and in which the basal process is relatively long and slender. 

 The genus will be critically defined and discussed in another place, 



Nannaria minor gen. et. sp. nov. 



This is a small species comparable in size to F. tennesseensis. 

 The general color of the dorsum in the types is a dull, in one speci- 



