PETRUNKEVITCH, AMERICAN SPIDERS 
211 
8. Alcimosphenus bifurcatus sp. nov. 
Plate XXI, Fig. 8. 
This species is considerably smaller than the preceding, if one may judge 
by the two immature females which I collected in Jamaica. 
Total length, 6.2; cephalothorax, 1.9 long, 1.7 broad between second and third 
pairs of legs; legs in order, 1423. 
Legs 
Femur 
Pat. A Tib. 
Metatar. 
Tarsus 
Total 
I 
2.3 
2.9 
2.2 
0.9 
8.3 
II 
1.6 
2.5 
1.9 
0.9 
6.9 
III 
1.3 
1.2 
1.0 
0.6 
4.1 
IV 
2.4 
2.1 
1.8 
0.8 
7.1 
All eyes subequal in size; side eyes contiguous; front row of eyes recurved, second 
row nearly straight; quadrangulus longer than broad; clypeus as high as quadrangu- 
lus is long; promargin of chelae with two, retromargin with four teeth; body smooth; 
legs without spines; at distal end of each patella a bristle on the EPS.; fourth femora 
with the two characteristic rows of long curved hair. 
Color in Life: Cephalothorax and abdomen bright red, the latter extending 
considerably beyond spinnerets, bifurcated at extreme end, the two lobes entirely 
black; mandibles, palpi, laminae, lip, sternum, venter and all coxae and trochanters 
red; spinnerets red with black ends; femora and patellae greenish black; tibiae, 
metatarsi and tarsi of first pair, metatarsi and tarsi of second pair yellow; proximal 
end of fourth femur red, proximal ends of fourth tibia, metatarsus and tarsus yellow, 
rest of these segments black; two little round white spots on venter halfway between 
genital groove and spinnere s. 
Patria: Jamaica, W. I. (Port Antonio and Castleton). Collected in 
February, 1905, in low grass along the road. 
Collection: A. Petrunkeviteh. 
9. Epeira solitaria Emerton, Trans. Conn. Acad., vol. vi, p. 299, plate 
xxxv, fig. 3. 1885. 
Epeira nigra id. ibid. vol. ix, p. 402, Plate i, fig. 1. 1894. 
Epeira angulata Emerton (nec Clerck) ibid. vol. xiv, p. 198. 1909. 
In his “ Supplement to New England Spiders,” Emerton considers his sil- 
vatica, nigra and solitaria all to be varieties of angulata Clerck. From 
examination of European specimens of angulata, I conclude, however, that 
the latter is distinct from the American species. It seems to me doubtful 
whether typical angulata has ever been recorded from the new continent. 
It is not impossible that solitaria and nigra will prove to be local varieties of 
sylvatica. Before sufficient material can be examined, however, I prefer 
to consider solitaria a separate species and nigra a smaller, dark variety of 
the same. I have carefully examined Emerton’s types at the Harvard Mu- 
