ANNOTATIONS ON TWO SPECIES OF 
LINYPHIID SPIDERS 
DESCRIBED BY THE LATE WILTON IVIE* 
By P. J. van Helsdingen 
Rijksmuseum van Natuurlijke Histone, Leiden, Netherlands 
In December 1966 a short paper by Wilton Ivie was published in 
the Journal of the New York Entomological Society. In that paper 
the author described and illustrated two new species of Linyphiidae, 
Taranucnus durdenae from Pennsylvania, and Troglohyphantes ho-> 
koko, from Ontario. The latter was also recorded from the state of 
New York. In the course of my study of the North American Liny- 
phiidae it appeared that both were junior synonyms of North Amer- 
ican species, as will be discussed below. In a vast faunal region as 
North America such mistakes are quite understandable and not easily 
avoided, especially when a species originally was described in a rather 
ill-chosen genus, or when the older description of the species was 
based on the opposite sex. 
While correcting the names of the two species, I take the oppor- 
tunity to discuss their distributions, habitats, and affinities wherever 
I have something of presumed importance to add. To avoid con- 
fusion the two species will be discussed separately under their correct 
names. 
T aranucnus ornithes (Barrows) 
Figures 1-10 
Lepthyphantes ornithes Barrows, 1940, Ohio J. Sci., 40: 134, figs. 7-7C 
(descr. $ $ ; Ohio, Tennessee). — Vogel, 1967, Mem. Amer. Ent. Soc., 
23: 93 (catal.) . 
Taranucnus durdenae Ivie, 1966, J. New York Ent. Soc., 74: 224, figs. 1-5 
(descr. $ $ ; Pennsylvania). — Vogel, 1967, Mem. Amer. Ent. Soc., 
23: 100 (catal.). Vogel, 1968, J. New York Ent. Soc., 76: 102 (Penn- 
sylvania). NEW SYNONYMY. 
Types. — Lectotype cf of Lepthyphantes ornithes , by present desig- 
nation, from Sugar Grove, Ohio. There are two $ paralectotypes, 
from Sugar Grove, Ohio, and the Great Smoky Mountains National 
Park, Tennessee. All three specimens are in the Barrows Collection 
at the Ohio State University, Columbus, Ohio, and were examined. 
*Based on research done at the Museum of Comparative Zoology and 
published with a grant from the Museum of Comparative Zoology. 
Manuscript received by the editor March 25, 1973 
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