HYMEN OPTEKA. 
9 
21. Bombus altaicus. 
Bomius altaicus, Eversm. Bull, Mosc., xix, 436, tab. 4, fig. 1. 
Bab. — Tankse, Pangkong valley, Ladak ; also in Asiatic Prussia. 
22. Bombus bizonatus. 
Eemina. — B. hirsutus, ater ; thorace antice, scutello , abclomineque basi flavin, medio 
nigro-fasciato, apice pallido. 
The head clothed with black pubescence, the labrum fringed with fulvous • the 
clvpeus naked, smooth and shining. Thorax clothed with pale fulvous pubescence and 
having a black pubescent hand between the wings; the pubescence on the le^-s and 
on the body beneath, black ; the apical joints of the tarsi with short pale pubescence 
that on the basal joint beneath rich fulvous; wings sub- hyaline, the nervures black 
The first and second segments of the abdomen with pale fulvous pubescence, the third 
with black, and the three apical ones with very pale fulvous. Eemale, length 7J lines. 
Sab. — No locality indicated. 
23. Bombus oppositus, Eig. 11. 
Eemina. — B. hirsutus, ater-, thorace abdomineque supra fluids. 
Black ; the head clothed with black pubescence ; the clypeus naked, smooth and shin- 
ing. Thorax, clothed above with rather short, rich fulvous pubescence, that on the sides 
beneath, and on the legs is black ; the pubescence on the apical joints of the tarsi is pale 
fulvous, on their basal joint within it is bright fulvous, outside it is black ; wings subhyaline, 
their nervures black. Abdomen, clothed above with rich fulvous, beneath with black 
pubescence. Eemale, length 9 lines. 
Sab. — No precise locality indicated. 
The genus Bombus is widely distributed ; its number of species amounting to little 
short of one hundred. Bombi are found both in the Old and New World, a few species 
occurring in the Tropics ; the genus has not been observed to penetrate Africa beyond Algeria, 
and it has not been found either in Madagascar, Australia or New Zealand. In the Old World 
it lias been found in Lapland, Siberia, Kamtschatka, China, Japan, India and Java. In great 
Britain twenty species occur. In the New World, it has been found in Greenland, Boothia 
Eelix, and at the Great Bear Lake, within the Arctic Circle. Mexico has produced some 
of the most beautiful species of the genus ; North America is rich in species ; in South 
America several fine ones occur. 
Tribe— HETEROGYNA. 
Family — FORM I CIDjF. 
24. Camponotus basabis, Eig. 1. 
Eemina. — C. niger, thorace subtus, pedibus abdominisque basi castaneo-rufls. 
Shining black ; the anterior margin of the clypeus and the mandibles rufo-pieeous ; the 
flagellum of the antennae ferruginous. Thorax ovate ; the mesothorax and scutellum dark 
