FEBRUARY 9, 1912] 
Pterostichus and Pseudomorpha very strongly 
asymmetric. In Cdarabus, Calosoma and 
Cychrus they are symmetric, and also in 
some families allied to the Carabide. He 
considers these parts will furnish useful clues 
to the relationship of families and smaller 
groups. 
Dr. OC. WesenBerG Lund, who has been 
studying the habits of caddice flies has re- 
cently published two articles on the larve. In 
one’ he describes and figures the nets of most 
of the Hydropsychide found in Denmark, 
and also describes the structure of the larve. 
He considers the Rhyacophilide an ancient 
family, and the Hydropsychide a more recent 
and highly specialized one. 
In the second article’ he gives an account 
of the life-history and larval habits of a 
large and common eaddice-fly. The carniy- 
orous larva builds a spiral case of parts of 
leaves or sticks, which is gradually enlarged 
and lengthened as the creature increases in 
size. 
Useful 
paper. 
Dr. N. ANNANDALE has described? a new 
genus (Ramcia) which is intermediate be- 
tween the true mosquitoes and the series of 
genera known as Corethine. The proboscis 
is short and weak, but the veins of wings bear 
prominent scales, and the entire wing-mar- 
gin is provided with a fringe of long scales. 
There are no scales on the thorax. The larva 
and pupa are also described, being related to 
Corethra. The single species comes from 
Ceylon. 
Amone recent fascicles of the “ Genera In- 
sectorum ” of M. Wytsman, a number are of 
interest to us. Fascicle 110, by H. Schmidt, 
7¢*Biologische Studien tiber netzspinnende 
Trichopterenlarven,’’ Intern. Rev. Hydrobiol. 
Hydrog. (Biol. Suppl.; III. Ser.), V., pp. 1-64, 
1911, 5 pls. 
®“<Ueber die Biologie der Phryganea grandis 
und tiber die Mechanik ihres Gehiusebaues,’’ 
Intern, Rev. Hydrobiol. Hydrog., IV., pp. 65-91, 
2 pls., 1910. 
®¢¢A New Genus of Short-beaked Gnats from 
Ceylon,’’ Spolia Zeylanica; VII., pp. 187-193, 1 
plate, 1911. 
bibliographies accompany each 
SCIENCE 
219 
is on the Aphodiide (part of the old Scara- 
beide), 155 pp., 8 pls.; fase. 111, by Max 
Hagedorn, on the Ipide (Scolytide), 178 pp., 
14 pls.; three of the plates show galleries and 
four show structural details; fasc. 113 on the 
Ortalid flies of the sub-family Richardine, 
56 pp., 3 pls.; fase. 114, by G. V. Szepligeti, 
on part of the ichneumon flies of the Ophio- 
nid, 100 pp., 2 pls.; fase. 115, by R. Martin, 
on the A’schnine, 34 pp., 5 pls.; fase. 116, 
117, by P. Dupius, on two small groups of 
Carabide; fase. 118, by OC. Emery, on the ants 
(Formicide) of family Ponerine, 125 pp., 3 
pls.; fase. 119, by J. A. G. Rehn, on the 
Mantid sub-family Vatine, 28 pp., 1 pl.; fase. 
120, by A. N. Caudell, on a small group of 
Locustide; fase. 121, by W. D. Pierce, on the 
Strepsiptera, 54 pp., 5 pls. 
NatHan Banks 
SPECIAL ARTICLES 
NOTICE OF A NEW GENUS OF RHINOCEROS FROM 
THE LOWER MIOCENE 
Dourine the past few years, several of the 
many collectors from various institutions, who 
have collected in western Nebraska and east- 
ern Wyoming, have found fragments of a very 
large rhinoceros in the Harrison beds, which 
occur in that region. Mr. E. S. Riggs, of the 
Field Museum of Natural History, of Chi- 
cago, found certain upper molars which he 
took to be those of some primitive species of 
Teleoceras. But all of these “finds” have 
been quite fragmentary, and no particular at- 
tempt has been made to accurately classify 
them. 
The writer had the good fortune last sum- 
mer to find additional material of this type, 
and upon careful examination is convinced 
that a new genus—or at least a new sub- 
genus—is here represented. 
Epiaphelops virgasectus, gen. et sp. nov. 
2 9 
Dental formula, M,, Pa G., i Type No. 
HC 265, collection of the writer. The speci- 
men taken as the type is a right lower jaw, 
with complete dentition, and the anterior part 
of the left lower jaw. 
Epiaphelops is separated from Aphelops, to 
