152 
Psyche 
[December 
of adults except that the peg is absent and the distal end 
of the second segment is not as swollen; dorsal lengths of 
the palpal segments were: P-I, 0.019-0.024 mm; P-II, 0.067- 
0.078 mm; P-III, 0.058-0.064 mm; P-IV, 0.106-0.114 mm; 
P-V, 0.035-0.038 mm. 
Holotype: Adult male, taken in Nichols’ Bog, Cheboygan 
County, Michigan (T36N/R3W/ S2) on July 24, 1952. 
Allotype: Adult female, same date and locality as holo- 
type. 
Paratypes: 32 males, 33 females, 14 nymphs, same date 
and locality as holotype; 9 males, 11 females, 6 nymphs, 
same locality on July 13, 1952; 6 males, 10 females, col- 
lected in a temporary pond near Big Star Lake, Lake 
County, Michigan (T17N R14W/S25) on April 30, 1952; 
one male, found in Whitmarsh Lake, Chippewa County, 
Michigan (T45N R5W/S6) on July 29, 1949. 
Habitat : Usually taken in temporary and semipermanent 
ponds and bogs. However, they are occasionally found in 
small lakes. 
Range: At present this species is known only from the 
northern half of the lower peninsula and the eastern half 
of the upper peninsula of Michigan. 
Remarks: Limnesia eggletoni most closely resembles the 
South American species L. malacoderma Lundblad. How- 
ever, the new species may be separated from the latter by 
the position of the setigerous glands of the fourth coxae 
and by the fact that the nymphs have only two pairs of 
genital acetabula. The nymphs of L. malacoderma (and 
all of the known Limnesiella nymphs from South America) 
are polyacetabulate. The holotype and allotype will be 
placed in the Chicago Natural History Museum, paratypes 
will be deposited in the United States National Museum. 
References 
Daday, E. von 
1905. Untersiichiingen uber die Siisswasser-Mikrofauna Paiaguays. 
Zoologica, 44:272-326. 
Koenike, F. 
1895. Nordamerikanische Hjaliachniden. Abh. naturw. Ver. Bremen, 
13:167-226. 
