AS&2 MODERN CLASSIFICATION OF INSECTS. 
Microphysa Westw. (Ann. Ent. Soc. France, tom. iii. pl.6.) com- 
prises some minute species, ordinarily found under bark, with the 
abdomen very broad, and truncated hemelytra, resembling a broad 
Pselaphus. 
Geocoris Fallen (Opthalmicus Hahn) is remarkable for the great 
breadth of the head; whilst Myodacha Zaér. has the hind part of the 
head formed into a very long neck. 
The largest species of the family is the Pyrrhocoris princeps Westw., 
Drury, vol. iii. pl. 43. f. 5. Another, nearly as large, is the P. grandis 
Gray (An. K. pl. 92. f. 3.), from India. 
The eleventh family, Corrrpa* (fig. 121.11. Coreus hirticornis), is 
of great extent, and comprises some of the largest and most re- 
markably formed insects in the order, especially distinguished by the 
large, and either thickened or elongated+ size of the terminal joint of 
the 4-jointed antenne (fig. 121. 15. ant. of Pseudophlceus Dalmanni), 
which are inserted near the lateral and superior margins of the head 
above a line drawn from the eyes to the base of the rostrum; the 
rostrum is generally long or moderately long, with the third joint 
shorter than the fourth (jig. 121.12. head of C. marginatus); the 
labrum is long; the ocelli are not widely apart ; the apical membranes 
of the hemelytra are generally furnished with numerous longitudinal 
nerves; these organs often do not conceal the lateral margins of the 
abdomen ; the legs are generally long, with 3-jointed tarsi, furnished 
with pulvilli beneath the ungues; the sternum is simple (fg. 121. 18. 
represents the underside of the thorax of Cor. marginatus). 

* BrisrtioGr. Rerer. to THE CorEIv«. 
Lister, in Phil. Trans. No. 72. (Cimex' Hyoscyami). 
Schilling. Entomologische Beitrage. 
Thunberg. Dissert. Insect. Hemipt. tria Gen. illust., Upsal, 1825. 4to. (Pendu- 
linus, Pachylis, and Copium, Holhymenia.) 
Burmeister, Curtis, Say, Hahn, H. Schiffer, Perty, Guérin, Animal Kingdom, Patisot 
Beauvois, Wolff, Fallen, Laporte, Dufour, Stoll, Donovan. 

+ The species, chiefly exotic, with the last joint long, form Laporte’s family 
Anisoscelites. 
