34 
Psyche 
[Vol. 92 
Holotype worker. Head Width 0.41 mm. Head Length 0.53 
mm. Scape Length 0.60 mm, Eye Length 0.13 mm. Body overall 
lightly shagreened and feebly shining and subopaque. Body almost 
completely hairless, light to medium reddish brown in color. 
Dominican Republic amber: no further locality. 
Tapinoma 
Although Tapinoma is cosmopolitan and composed of numerous, 
anatomically diverse species, it has not previously been recorded 
from the fossil record. At least three species ( litorale , opacum, rase- 
num) are native to the Greater Antilles while a fourth ( melanoce - 
phalum ) occurs there and may either be native or introduced by 
commerce. The following record establishes the relative antiquity of 
the genus as well as of the atriceps group in the West Indies. 
Tapinoma trochis, new species 
(Fig. 12) 
Diagnosis ( worker ). A member of the atriceps group, distin- 
guished by small size and a conspicuous broadening of the fore 
femora and tibiae. It most closely resembles canalis of Panama 
among living species, which differs from trochis by the fact that its 
scapes reach the occipital corners. Also, the propodeal dorsum of 
canalis is less flattened in side view, and the dorsal and declivitous 
propodeal faces meet in a rounded but distinct obtuse angle. 
The Greek specific name trochis means runner and is meant to 
refer to the powerful-looking fore legs. 
Holotype worker. Head Width 0.32 mm. Head Length 0.37 
mm, Pronotal Width 0.21 mm. Scape Length 0.26 mm, Eye Length 
0.06 mm. Body smooth, feebly shining to subopaque, devoid of 
standing hairs, medium yellowish brown. Dominican Republic 
amber: no further locality. 
Species Properly Excluded from the Dolichoderinae 
Camponotus neotropicus (Baroni Urbani), 
new combination 
Leptomyrmex neotropicus Baroni Urbani, 1980, Stuttgarter Beitr. 
Naturkunde, Ser. B, 62: 1-10, worker. Type locality: amber, 
Dominican Republic, no further locality. 
