1931 ] 
Anyphzeninse 
105 
Anyphsena 
Type: Aranea accentuata Walckenaer, 1802. 
Cephalothorax oval, thoracic groove rather long, front 
broad and obtuse. Anterior row of eyes straight or weakly 
recurved, the median usually the smallest; posterior row 
weakly procurved, equal and usually equidistant; quad- 
rangle of median eyes higher than wide and narrower in 
front ; lateral eyes well separated. Legs long with scopulse 
on all tarsi and often on the anterior metatarsi. Ventral 
furrow about midway between epigastric plate and spin- 
nerets. 
The genus Anyphsena was made by Sundevall in 1833. 
(Conspectus Arachnidum, p. 20) for Aranea accentuata 
Walckenaer. In this species the ventral furrow is a little 
nearer the epigastric plate than to the spinnerets and there 
is one pair of spines (basal) on the anterior metatarsi. The 
A. M. E. are smaller than the A. L. E., the mandibles are 
vertical, with two teeth on the inferior margin of the groove 
and the palpus is quite unlike any of the American forms. 
In a careful examination of one of the common species 
(A. celer Hentz) , it is found that the position of the ventral 
furrow often varies from the middle to just in front, or a 
little behind the middle, so that it is not easy to use as a 
primary character, but in all species examined the position 
of the furrow is approximately the same in the two sexes, 
also the number and arrangement of the spines on the an- 
terior legs. With the exception of A. calcar sp. n. from 
Florida and A. aperta Banks from Washington all the 
American species have two pairs of spines on the first and 
second metatarsi. The first species also differs in having 
a large club-shaped process on the patella of the male 
palpus, a character found on at least one European species. 
In 1913 Berland, Araignees de l’Equateur, called atten- 
tion to the subdivision made by M. Simon in 1903. The 
first group has two teeth on the inferior margin of the 
mandibles and the ventral furrow is nearer the spinnerets 
than to the epigastric plate. The second group, which in- 
cludes Anyphsena, has several teeth on the inferior margin 
