240 
Psyche 
[December 
designated by Petrunkevitch, 1911, Bull. Amer. Mus. Natur. Hist., 
vol. 29, p. 275. The name is of feminine gender. 
Note. Both Wiehle (1931) and Roewer’s Katalog der Araneae 
spell the generic name Hyposinga. Roewer changed the spelling of 
many generic names from long accustomed usage to the spelling of 
that of the original author. But here Roewer changed the original 
spelling. Ausserer consistently spelled the name with “s” and also 
indicated that a main character of the subgenus is the high clvpeus 
(hypso, Greek for high). 
Diagnosis. Hypsosinga differs from Singa in having the posterior 
median eyes the largest (1.2-2 diameters of anterior median eyes, 
Figs. 52, 64, 93, 105). The ocular quadrangle is wider behind than 
in front, or rectangular. The clypeus height in Hypsosinga is 1.5 
to 3 diameters of the anterior median eyes (Figs. 52, 64, 81, 105), 
but only about one diameter of the anterior median eyes in Singa. 
It is always slightly higher in males than females. As in Singaj but 
unlike most Araneus, Hypsosinga has the carapace smooth and rather 
wide in front, wider than the eye area (Figs. 54, 66) ; there is no 
thoracic depression, or sometimes a small longitudinal black mark 
in the male. Unlike many Araneus , the males of the North American 
species have no hooks on the first coxae. The first tibiae of males 
of H. singaeformis and H. groenlandica are swollen (Fig. 71). 
In many araneids, it is the second tibia that is modified. The 
abdomen in Hypsosinga unlike that of Singa tends to be oval, widest 
in the middle, with either two dorsal longitudinal bands or four 
dark spots (Figs. 54, 66, 83, 95, 106). Like Singa , unlike Araneus , 
Hypsosinga frequently has the eye region black. 
The epigynum differs from those of both Singa and Araneus in 
lacking a scape (Figs. 49, 61, 102). The palpus differs from that 
of Singa in having a smaller terminal apophysis (A) and a spur on 
the ventral face of the tegulum (Figs. 35, 36, 39). Hypsosinga 
differs from all other genera of Araneidae in having a large trans- 
parent scale attached to the base of the embolus (Fig. 69) ; the scale 
breaks off in mating and lodges in the epigynum (Figs. 99, 100; 
Levi, 1972). A scar remains on the embolus (Figs. 70, 98). The 
median apophysis is small in all species (M, Figs. 35, 38, 39). The 
palpal patella has two setae. 
Description. All species are quite similar in general appearance 
and unlike Neoscona species differ more from each other in genitalic 
differences than in abdominal patterns. The carapace is orange, 
lacking hair; eye region black, and rarely in individuals, the black 
