1973] 
van Helsdingen — Linyphiid Spiders 
55 
walled portions close to the receptacula, the latter situated against the 
posterior wall at the outside of the entrances. Receptacula small. 
It is clear that the embolus is supported by the embolic membrane 
in the unexpanded palp, -and it is not unlikely that it also guides and 
supports the long embolus during the difficult process of introducing 
the long and flexible element into the vulva. The whole palp may 
find firm support against the epigyne by means of the intricate dor- 
sal modification of the cymbium. The median apophysis does not 
show any hook-shaped parts (cf. Linyphia Neriene , etc.) and, at 
the most, may serve the purpose of supporting the functioning palp 
during copulation by being pressed with its broad and flattened 
apical portion against the epigyne. The embolus of T. ornithes does 
not have the small, toothed apophysis at the base of the embolus as 
shown in the figures of T. setosus by Merrett (1963: 382, fig. 39). 
Oreonetides recurvatus (Emerton, 1913) 
Figures 1, 11-17 
Bathyphantes recurvatus Emerton, 1913, Trans. Connecticut Acad. Arts Sci., 
18: 218, pi. 2 fig. 8 (descr. $, Vermont). — Ivie, 1969, Amer. Mus. 
Novit., 2364: 7 (= Oreonetides r.) . 
Aigola recurvata ; Crosby, 1937, Proc. Biol. Soc. Washington, 50: 40, pi. 1 
fig. 10 (descr. $, New York). 
Troglohyphantes kokoko Ivie, 1966, J. New York Ent. Soc., 74: 226, figs. 
6-7 (descr. $, Ontario; New York). NEW SYNONYMY. 
Types. — cf holotype of Bathyphantes recurvatus from Gore 
Mountain, Norton, Vermont, in MCZ (examined). ? holotype and 
9 paratype of Troglohyphantes kokoko from Ko-ko-ko Bay, Lake 
Timagami, Ontario, reported to be in the AMNH (not seen). 
Additional material. — The specimens from Mt. Whiteface, New 
York, mentioned by Crosby (1937) have been examined in the 
AMNH. More recently collected specimens ( i 9 3 cf ) come from 
George Lake, Alberta, Canada (CNC), 20.IX-1.X.1966 (Fig. 1). 
Oreonetides recurvatus is a small species with long, slender legs, 
which are well provided with spines on femora, tibiae, and meta- 
tarsi. Tibia I has, beside the dorsal spines, a 1', a 1 " and 2 v-spines. 
The chelicerae have three teeth in the dorsal row. The abdomen 
shows a dorsal pattern of grey cross-bars. Taking all together, it 
is not very likely that the present species belongs to Oreonetides , but 
it is maintained there for the time being. The genus is due for re- 
vision, and it does not seem appropriate to create a new genus for 
recurvatus here without having studied the other species presently 
residing in Oreonetides. 
