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PACIFIC SCIENCE, Vol. XIV, October I960 
SALTICIDAE 
Athamas ivhitmei Cambridge 
NIUE: 2 Females, 3 males, 3 imm. In house and 
swept in herbage. 
AITUTAKI: 4 Males, 1 imm. Swept. 
Bavia aericeps E. Simon 
AITUTAKI: 1 Female, 1 imm. 
Cytaea piscula L. Koch 
NIUE: 2 imm. In bush. 
Flacilla minuta Berland 
NIUE: 2 Females imm., 1 male. In house. 
AITUTAKI: 1 Female. Swept. There is one spine 
on metatarsus I, instead of none. 
Thorellia ensifera (Thorell) 
NIUE: 5 Females and 2 imm., 7 males and 3 
imm. In house and litter in the bush. 
AITUTAKI: 3 Females, 3 males, 5 imm. Swept. 
MANGAIA: 2 Females imm. 
Menemerus bivittatus Dufour 
AITUTAKI: 1 Male. Under bark. 
MANGAIA: 1 Female. 
Mollicia microphthalma (L. Koch) 
NIUE: 2 Females and 1 imm. In bush. 
AITUTAKI: 1 Male. 
? sp. 
AITUTAKI: 1 Female imm. Unfortunately it is 
not possible to identify this specimen, but it 
seems to be most like Lauharulla insulana 
Simon, described from Tahiti. 
THERIDIIDAE 
Conopistha samoensis (Cambridge) 
NIUE: 3 Females and 9 imm., 1 male imm. The 
sides of the abdomen of all these specimens 
are silver, the ventral side is dark, and there is 
also a well-marked streak running longitudi- 
nally along the whole of the dorsal surface. 
This is better marked posteriorly to the apex 
than in Samoan specimens; there is no vertical 
lateral dark band which some of these have. 
Conopistha unimaculata Marples 
NIUE: 4 Females and 21 imm., 2 males and 4 
imm. Collected in the bush. 
Pholcomma soloa (Marples) 
NIUE: 1 Female. In bush. This species was de- 
scribed as Theridion soloa from a single in- 
dividual from Samoa. Additions to the de- 
scription already published (1955 b) are a 
row of three minute teeth on the retromargin 
of the cheliceral groove, and extensions of the 
broad posterior end of the sternum passing 
posterior to the last pair of legs. These are 
present in the type as well. 
Theridion alb o striatum L. Koch 
NIUE: 1 Male. In house. 
AITUTAKI: 20 Females and 16 imm., 5 males 
and 4 imm. In buildings. 
MANGAIA: 2 Females, 1 male imm. The common 
domestic theridiid throughout the Pacific is 
taken to be this species. 
Theridion aleipata Marples 
NIUE: 1 Female and 9 eggs in a thin silk cocoon. 
AITUTAKI: 2 Females, 1 male imm. Under 
pebbles on bare ground and swept. 
Mysmena phyllicola ( Marples ) 
NIUE: 2 Females, 1 male imm., 1 cocoon with 
6 spiderlings. In bush. 
LINYPHIIDAE 
Linyphia tuasivia Marples 
AITUTAKI: 1 Female. Under logs and leaves. The 
epigynum is slightly different from Samoan 
specimens, but it seems to belong to this 
species. 
Aitutakia armata gen. et sp. nov. 
AITUTAKI: 1 Male. In house. Male. Length 2.28 
mm. Pale brown, sternum and mouth parts 
darker. Abdomen greyer with faint posterior 
dorsal chevrons. 
Carapace: Length, 1.07 mm., breadth, 0.83 
mm. Lateral margins convex. Thoracic groove 
conspicuous and longitudinal. 
Eyes: 8, all light. From above, anterior row 
strongly recurved, posterior row straight. Ratios 
of the diameters of the eyes and of their dis- 
tances apart: AM, 91; AL, 117; PM, 97; PL, 
110; AM-AM, 53; AM-AL, 41; AM-PM, 76; 
PM-PM, 76; PM-PL, 80; laterals touching; 
clypeus, 220. Breadth of eyegroup, 0.39 mm. 
Chelicerae: Main part rounded, groove very 
oblique so that the chelicera tapers towards the 
base of the fang. Large sharp prolateral distal 
apophysis, and a row of 5 smaller ones, increas- 
ing in size distally, along the prolateral dorsal 
