1972] 
Chickering — Oonops 
1 1 1 
Oonops oblucus sp. nov. 
Figures 15-17 
Holotype. The male holotype is from Hope Gardens, St. Andrew 
Parish, Jamaica, W. I., November 27, 1963. The name of the 
species is an arbitrary combination of letters. 
Description. Total length nearly 1.47 mm. Carapace nearly 
0.72 mm long; nearly 0.55 mm wide opposite second coxae where it 
is widest; nearly 0.22 mm tall; gently arched from behind PME to 
beginning of posterior declivity nearly opposite interval between 
second and third coxae; with no definite median thoracic groove 
or pit observed. Eyes: six as usual in two rows (Fig. 15) ; posterior 
row only a little wider than anterior row and definitely recurved; 
occupies nearly eleven-fourteenths of width of carapace at that 
level. Ratio of eyes ALE : PME : PLE = nearly 7 : 6.5 : 6.5 
(long axes used for measurements). ALE separated from one an- 
other by nearly five-sevenths of their long axes; separated from PME 
and PLE only by broad lines. PME contiguous to one another for 
nearly one-third of their circumference and separated from PLE 
only by a broad line. Clypeus obscure but height apparently less 
than the radius of ALE. Chelicerae, maxillae and lip: with poor 
exposure but apparently typical of the genus and without special 
modifications observed. Sternum : moderately convex ; widest between 
second coxae where it is nearly four-fifths as wide as long; pos- 
terior end broadly rounded between bases of fourth coxae which 
are separated by a little more than their width. Legs: probably 
4123 in order of length but first legs are missing; probably with 
few slender spines but spiniform bristles are numerous and confus- 
ing. Palp: simple (Figs. 16-17) but unlike any other seen during 
this study of the genus Oonops ; femur, patella and tibia unusually 
short and broad. Abdomen: quite typical of males of the genus and 
without special modifications; with no distinguishable ventral or 
epigastric scutum. Color in alcohol: carapace and sternum a light 
yellowish-brown; with a moderate amount of black pigment in ocu- 
lar area; legs and mouth parts yellowish with some variation; ab- 
domen with an unusual color pattern; dorsal and dorsolateral regions 
purplish with three pairs of irregular whitish spots in anterior dorsal 
two-thirds and with three small, whitish, irregularly placed spots in 
posterior third of the dorsum; the spinnerets and ventrolateral re- 
gions are nearly white. 
Diagnosis. The genetical relationships of this species are diffi- 
cult to determine but the species seems to be most closely related 
to Oonops reticulatus Petrunkevitch as this species is now under- 
