HETEROPTERA. — TINGID®. 477 
ling has indeed described a winged house bug, under the name of Ci- 
mex domesticus (Js?s, 1834, p. 738.) ; but Burmeister has proved this 
( Weigm. Arch. No. iv. p.71.) to belong to the genus Xylocoris Dufour. 
Hahn has evidently figured this insect under the name of Lyctocoris 
domesticus (Wanz. Ins. vol. iii. t.’79. f. 243.); but it belongs to a 
separate family. Fabricius, however, has described a species from 
South America, under the name of Acanthia hemiptera (Syst. Rh. 
Pelitsa). 
It has been long known that pigeons, swallows, &c., were infested 
with these insects. Latreille considered that the latter belonged to a 
distinct species ; and the Rev. L. Jenyns has published the descrip- 
tions of it and two additional species, under the names of C. Colum- 
barius, found in pigeons’ nests, from my collection; C. Hirundinis, 
found in swallows’ nests ; and C. Pipistrelli, found on a bat. 
a 
The eighth family, Tincip*, consists of small species (_fig. 120.12. 
Tingis (Monanthia) carinata), at once distinguished by the depressed 
and broad form of the body; the antenne, with the terminal joints 
not thinner than the preceding ; the rostrum very short, 3-jointed, 
and received into a gutter on the under side of the head (fig. 120. 13. 
head of Phymata manicata); the tarsi are often only 2-jointed (jig. 
120. 14. tarsus of Aradus), although, in Dictyonota, they are figured 
as 3-jointed by Curtis (B. #. pl.154.). There is considerable di- 
versity in the structure of the few groups of which this family, even 
in its restricted state, is composed. Tingis, and the genera separated 
therefrom, have the thorax generally furnished with a membranous 
dilatation on each side, and posteriorly produced in the place of a scu- 
tellum, and being, as well as the large hemelytra, which entirely cover 
the abdomen, covered with reticulations of greater or less size. In 
the Aradi the scutellum is distinct, the thorax not dilated, and the 
wings, when closed, do not cover the abdomen, but leave its margins 
exposed. Macrocephalus and Syrtis have the fore legs strongly rap- 
torial, resembling those of Naucoris in structure; these have also the 

* Brisrtiocr. REFER. TO THE TIncIp&. 
Swederus, in Vetensk Acad. Hand]. 1787. (Macrocephalus.) 
And the general works of Fallen, Burmeister, Laporte, Wolff, Hahn, Guérin, Curtis, 
Herrich-Schaffer (Nomencl. Ent.), Fabricius, Spinola, Encycl. Méth. 
