124 Psyche [December 
large, not raised at angle to general slope of somites excepting in 
caudal region. Posterior margin of carine 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 foveole 2+2. 
In the male the sternites and the coxe 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. nov. 
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- 
