1970] 
C bickering — Oonops 
505 
Records. The described female paratype was taken with male 
paratypes on Barro Colorado Island, Panama Canal Zone, May 
20-21, 1964. The specimens now assigned to this species were for 
some time considered to represent two different species but are now 
placed together. Males are now in the collection from the following 
localities: Balboa, Panama Canal Zone, August, 1936; Boquete, 
Panama, August 4-1 1, 1954; Panama Canal Zone Forest Preserve, 
Jan. 8, 1958 and Panama Canal Zone Summit Gardens^ May 1964. 
Nineteen females are in the collection from Boquete, Panama, 
Aug. 4-1 1, 1954; some of these are probably immature and their 
status uncertain; one addition-female and immature females are in 
the collection from Barro Colorado Island. May 20-21, 1964. 
Oonops sativus sp. nov. 
Figures 36-39 
Holotype. The male holotype is from Simla, Trinidad, W. I., 
April 16, 1964. The name of the species is an arbitrary combination 
of letters. 
Description. Total length 1.3 mm. Carapace 0.59 mm long; 0.46 
mm wide opposite interval between second and third coxae where it 
is widest; nearly 0.15 mm tall; lower than usual in the genus as 
observed in this study (Fig. 36) ; nearly level medially from PME 
to beginning of moderately steep posterior declivity; with a sparse 
supply of dark bristles and with a series of eight to ten long, slender 
spines along lateral margins of the posterior declivity and contiguous 
ventral border of the carapace; with no definite median fovea. Eyes: 
six as usual in a compact group ; posterior row very moderately 
recurved and occupies only about half the width of the carapace at 
that level. Ratio of eyes ALE : PME : PLE = nearly 5:4: 3.5. 
ALE separated from one another by a little more than their radius; 
separated from PLE by one-fifth of their diameter and from PME 
by a slightly greater distance. PME contiguous to one another for 
nearly one third of their circumference and subcontiguous to PLE. 
Clypeus obscure but probably somewhat less than diameter of ALE 
in height. Black pigment in ocular area essentially as shown in 
Figure 37. Chelicerae: vertical; parallel; moderately long and 
slender; without special modifications. Maxillae: moderately long 
and slender ; slighty convergent ; narrowed distally. Lip : nearly as 
wide at base as long; appears to be firmly united to sternum. 
Sternum: convex; with many stiff, dark bristles some of which are 
erect ; not notably lobed ; surface quite smooth ; longer than wide 
