MELUCHA.—MOZENA. 109 
MELUCHA. 
Melucha, Amyot & Serville, Hist. des Hém. p. 195 (18438); Stal, Ofv. Vet.-Ak. Férh. 1867, p. 538 ; 
En. Hem. i. p. 183 (1870). 
Physomerus, Spin. Ess. Hém. p. 189 (1837). 
Stenophyllopus, Costa, Rend. Accad. Napol. ii. p. 256 (1863). 
Melucha is separated from the preceding genus Thasus by the third joint of the 
antenne being simple, and the posterior legs placed much closer together. — 
The genus is a truly Neotropical one; about five species are known, one only of 
which has at present been received from Central America :— | 
1. Melucha phyllocnemis. 
Cerbus phyllocnemis, Burm. Handb. i. 1, p. 840. 3’; H.-S. Wanz. Ins. vi. p. 55, ff. 615, 616 ?. 
Physomerus lineatocollis, Spin. Ess. Hém. p. 141°. 
Melucha lineicollis, A. & 8. Hist. des Hém. p. 196. 1*. 
Melucha phyllocnemis, Dall. List Hem. ii. p. 385. 1°; Stal, En. Hem. i. p. 133. 1°. 
Melucha quadrivittis, Stal, Stett. ent. Zeit. xxiii. p. 276. 1267. 
Hab. Mexico ®? (coll. Sign.) ; CotomBta®®; Braziu!?23456; Paraguay &, 
MOZENA. 
Mozena, Amyot et Serville, Hist. des Hém. p. 192 (1848); Stal, Ofv. Vet.-Ak. Férh. 1867, p. 538; 
En. Hem. i. p. 134 (1870). 
Discogaster, Amyot & Serville, Hist. des Hém. p. 191 (1843), excl. syn. 
Rhombogaster, Dall. List Hem. ii. p. 379 (1852). 
Archimerus, Stal, Stett. ent. Zeit. xxii. p. 277 (1862). 
The principal and a very distinctive character of this genus is the mesosternal longi- 
tudinal sulcation near the anterior coxe. It is also separable from Melucha by the 
posterior tibiee not being outwardly dilated. Central America appears to be the home 
of Mozena, as, of eleven recorded species, nine have been received from this subregion. 
The remaining two belong respectively to Colombia and Cuba. 
1. Mozena brunnicornis. 
Archimerus brunnicornis, H.-S. Wanz. Ins. vi. p. 26, ff. 582, 583 *. 
Mozena spinicrus, A. & S. Hist. des Hém. p. 192. 1°; Stal, Ann. Soc. Ent. de Fr. sér. 4, v. 
p. 175.1. 
Mozena brunnicornis, Stal, En. Hem. ii. p. 184. 1. 
Hab. Mexico 1, Yucatan, Valladolid (Gaumer). 
Two specimens which I have examined from Yucatan have the apical joint of the 
antenne fuscous. This does not appear to be a specific distinction, as Prof. Ubler (Bull. 
