1938 ] 
Free-living Mites 
129 
(of cephaloprothorax) subequal to interpseudostigmatic, 
nearly as long as dorsal bristles of abdomen ; eyes with pig- 
mented ground; posterior eyes at widest part of cephalo- 
prothorax, anterior eyes twice their diameter from posterior 
eyes; pseudostigmata on transverse plane slightly anterior 
to posterior eyes; the usual nine bristles of dorsum of 
abdomen fairly long but the three anterior mesal pairs not 
as long as their interspaces ; lateral face of palptarsus with 
three subequally long bristles (figure 9) , the posterior of the 
three is most ventrally inserted; distal end of palptarsus 
tapering markedly, hyaline collar of lateral bristle quite long 
and prominent (figure 9). 
Cotypes: Two specimens from leaf litter about base of 
trees in an abandoned orange grove, five miles beyond 
Micanope, Fla.; taken February 26th 1928 by Edgar F. 
Grossman, slide G28Bdl and -Bd2. 
Spmibdella wilsoni sp. nov. 
(Figures 10 and 11) 
Fairly large, total length of gravid female 1.3 mm. ; with 
dark pigment restricted to prothorax and cephalon in im- 
matures, slightly more extensive in adults; rostrum with 
two pairs of bristles (in addition to the distal) ; mandibles 
with attenuate chelae, the only bristle inserted near base of 
chelae (figure 11) ; lateral bristles of cephaloprothorax much 
shorter than interpseudostigmatic which are about half 
length of dorsal bristles of abdomen; eyes with pigment, 
distant their own diameter; anterior bristles of dorsum of 
abdomen nearly as long as interspaces ; dorsal face of palp- 
tarsus with one long (longer than the segment) straight 
bristle; lateral edge with two bristles (figure 10) : the 
distal one subequal to length of segment, the proximal one 
much shorter, mesal face with two bristles, both rather 
short, distal end with both major bristle cups highly 
developed (figure 10). 
Material examined: One specimen from leaf litter, sunny, 
rather dry, live oak and pine, Perry, Fla.; taken Feb- 
ruary 2nd 1928 by E. F. Grossman, slide GlOBdl. One 
specimen from leaf litter, high, dry, under hickory tree, 
Pinkoson Springs, Gainesville, Fla. ; taken March 4th 1928 
