X. 
ANNALES MUSEI NATIONALIS HUNGARICL 
1912. 
REVISION OF THE AMERICAN CIMICIDAE. 
By Dr. G. Horváth. 
The family of Cimicidae is represented in the New World by 
7 species, two of which also inhabit the Old World. One is the Common 
Bed-bug ( Cimex lectularius) introduced certainly from Europe, the other 
species in the Tropical Bed-bug (Cimex hemipterus) distributed in the 
tropical regions of Asia and Africa, whence it was probably imported 
into America. 
Two of the 5 native American species (Cimex pilosellus, Oecictcus 
vicarius) are limited to North America, one (Haematosiphon inodorus ) 
occurs in Mexico and the adjacent parts of the United States, while 
two little known species (Cimex foedus and valdivianus) have been 
described from South America. 
The considerable material in the Hungarian National Museum and 
other collections, principally the very important series of the U. S. Na¬ 
tional Museum of Washington, communicated to me by the kindness 
of Mr. Otto Heidemann, gave me the opportunity of making a careful 
study of the American Cimicidae. 
The American species of this family belong to three genera, which 
are distinguished as follows : 
1 (4). Rostrum short, reaching to about the anterior coxae ; scutellum acumi¬ 
nate at the apex ; lateral margin of the elytra not reflexed, apical 
margin more or less rounded ; intermediate and posterior coxae very 
remote. 
2 (3). Body covered with short hairs, only the lateral sides of pronotum and 
elytra fringed with longer hairs ; antennae with the third and fourth 
joints very much thinner than the first and second and capillary ; 
pronotum with the anterior margin very deeply sinuate. Cimex Linn. 
3 (2). Body clothed with long silky hairs; third and fourth joints of the 
antennae only a little thiuner than the first and second and filiform ; 
anterior margin of the pronotum very slightly sinuate or nearly straight 
in the middle, produced at the lateral angles. Oeciacus Stal. 
4 (1). Rostrum long, reaching to the posterior coxae; scutellum rounded at 
the apex ; lateral margin of the elytra strongly reflexed, apical margin 
slightly sinuate towards the middle ; intermediate and posterior coxae 
sub contiguo us. Haematosiphon Champ. 
17 
Annales Musei Nationalis Hungarici. X. 
