THE TINGITOIDEA OR “LACE-BUGS” OF OHIO. 
Herbert Osborn and Carl J. Drake. 
The insects belonging to the superfamily Tingitoidea are commonly 
known as “lace-bugs.” They are readily diflerentiated from all other 
Hemipterous-Heteropterous insects by the net-, gauze-, or lace-like ap¬ 
pearance of their dorsal surface. This peculiar appearance is due to the 
more or less closely reticulate relief of the membranous pronotal mar¬ 
gins and the elytra or hemielytra. The lace-bugs are all rather small 
insects and plant feeders. They are usually found on the underside of 
the leaves of trees and shrubs, also a few herbaceous plants. When 
present in sufficient numbers they may do a considerable amount of 
damage to cultivated shrubs and plants. 
We have included several species not yet collected within the borders 
of the state, but which probably belong to our fauna. 
In the descriptions of the genera and species we have followed Dr. 
Champion (Biologia Centrali-Americana, Rhynch., Vol. II, p. 1), and 
the following terms are used for the different portions of the elytra: 
(1) costal area (the outer membrane of Stal), (2) subcostal area (the 
costal area of Stal), (3) discoidal area, (4) sutural area. 
Acknozvledgment .—The authors desire to express their sincere thanks 
to those who have very kindly assisted in the preparation of this paper 
as follows: Dr. L. O. Howard, Bureau of Entomology, Washington, 
D. C., for the loan of specimens from the National Museum and for 
plates from the United States Department of Agriculture; Mr. Otto 
Heidemann, Washington, D. C., for the use of specimens from his 
private collection; Dr. E. H. Ewing, Ames, Iowa, for the use of material 
from the collection of Iowa State College; Mr. H. M. Parshley, Harvard 
University, for specimens from his private collection; The Entomo¬ 
logical Society of Washington for the loan of plates made from draw¬ 
ings by Mr. Heidemann; Dr. A. W. Morrill, State Entomologist, 
Phoenix, Arizona, for the privilege of using his plate showing life history; 
Mr. James Hambleton who has made the original drawings; Mr. Erank 
H. Smith for the photographs. 
KEY TO THE FAMILIES OF THE TINGITOIDEA. 
Pronotum produced posteriorly, forming a triangular process; ocelli wanting; 
elytra of a uniform texture throughout, densely areolated, membranous be¬ 
tween the areolae.Family Tingitidae 
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