4:50 MODERN CLASSIFICATION OF INSECTS. 
abdomen is terminated by a long slender tube; in Monophlebus the 
¢& antenne are very long, multi-articulate, and verticillate, and the ab- 
dominal segments furnished with long flattened filaments; whilst in 
Dorthesia ( Cionops Leach) the antenne are very long, but simple, 
and the abdomen terminated by a thick pencil of very delicate white 
setz (frontispiece, Vol. I. fig. 8.), and the female (fig. 118. 20. D. 
cataphractus Sh.) is covered with elongated flakes of a waxy secre- 
tion, which in some exotic species in my collection are nearly an inch 
long. The females in this genus, as well as in Monophlebus, remain 
active, with the antenne and legs distinct. Some of the exotic 
species are of very large size. I possess several males belonging to 
the genera Monophlebus and Dorthesia*, the wings of which are nearly 
an inch in expanse, and a gigantic female from New Holland, given 
to me by Mr. Hope, which has much the appearance and size of the 
full-grown larva of Cistrus Bovis. 


Orver HETEROPTERA.+ 
(HemietERA MacLeay, Stephens; UHemiprERA HETEROPTERA 
Latr.; Hemimerorrera p. Clairv.; Ruyneota p. Fabr.; Ruyn- 
cHoTa p. Burm.; ARTHITIGNATHES p. Spin. Essai Hem. Het. 
p: 20.) 
Cuar. Wings four; anterior pair larger than the posterior, lapping 
partly over each other ; basal portion coriaceous, apical part mem- 
branous. 
* T cannot agree with M. Dufour in considering Dorthesia as belonging to a 
family distinet from Coccus. (See his Rech. Anatom. sur les Hémipt. G. 31.) The 
males even of my gigantic species are entirely destitute of a mouth; and the 
nervures of the wings as well as many other characters, and especially the possession 
of only a pair of wings with halteres, agree with the rest of the Coccide. 
The numerous observations and drawings which I have made in illustration of 
this family (which has engaged much of my attention) will form the subject 
of separate memoirs. 

t Brsuiocr. Rerer. To THE HETEROPTERA. 
Stoll. Représentation des Punaises, 4to. 49 col, pl. Amsterd. 1788. 
Modeer, in Vetensk. Acad. Handling. 1764, b. 26. (on Cimices). — Ditto, band 29. 
( Ditto. ) 
