1982] 
Lubin, Opell, Eberhard, Levi — Uloboridae 
61 
median apophysis and by a flattened, elongate median apophysis 
bulb which bears a broad conductor (Figs. 45, 46). Both males and 
females have a gray lateral abdominal stripe (Fig. 48). 
Description. Female. Total length 3.28-3.68 mm (X = 3.47, S, 
0.14, N = 8), carapace length 1.10-1.20 mm(X= 1.15, SD = 0.04), 
maximum carapace width 0.94-1.04 (X = 0.98, SD 0.04), carapace 
width at PME’s 0.54-0.58 mm (X = 0.56, SD 0.01). All eyes except 
AME’s surrounded by small black circles (Fig. 41). Carapace with 
light lateral margins, light posterior median stripe, and central gray 
patch. Sternum tan. First and second legs light gray with tan 
proximal ring on tibia, metatarsus, and tarsus. Tibia I without a 
conspicuous setal brush. Third and fourth legs tan with gray distal 
rings on tibia, metatarsus, and tarsus. Abdomen without humps, 
dorsal and lateral surfaces densely covered by white guanine spots 
except in cardiac region and along a faint lateral stripe similar to but 
not as sharply defined as that shown in Fig. 48. Venter tan with only 
sparse guanine spots. Epigynum a raised mound with single median 
lobe (Figs. 42, 43), probably representing a pair of fused lateral 
lobes. Under normal light microscopy a clove oil-cleared epigynum 
showed only a pair of oval spermathecae with a fertilization duct 
leading from the posterior lateral margin of each and a short, broad 
duct extending from the median surface of each to epigynum’s 
posterior margin. Examination with Nomarski optics revealed the 
more extensive system of thin-walled ducts shown in Figure 44. It 
was not possible to determine precisely where the ducts opened 
externally, but this appears to be between the spermathecae and 
near the base of the epigynal lobe. 
Male. Total length 2.32-2.40 mm, carapace length 0.98-1.00 mm, 
maximum carapace width 0.78-0.80 mm, carapace width at PLE’s 
0.50-0.52 mm. Carapace and sternum coloration similar to that of 
Figures 36-39. Uloborus albolineatus n. sp. 36. Dorsal view of female holotype. 
37. Lateral view of female carapace. 38. Ventral view of epigynum. 39. Dorsal 
view of cleared epigynum. 
Figures 40-48. Uloborus bispiralis n. sp. 40. Male carapace. 41. Female holo- 
type carapace. 42. Ventral view of holotype epigynum. 43. Posterior view of 
epigynum. 44. Dorsal view of cleared epigynum. 45. Retrolateral view of male 
palpus. 46. Apical view of male palpus. 47. Prolateral view of male first femur, 
patella, and tibia. 48. Lateral view of male abdomen. 
