MASEOCHARA. 155 
The dorsal plate of the seventh segment of the hind body is armed behind with six 
teeth as in VV. semivelutina ; the penultimate joints of the antenne appear to be slightly 
shorter in the female than in the male. 
Although closely allied to I. semivelutina, this species is readily distinguished by 
the black (not red) elytra, by the less transverse thorax, the hind angles of which have 
not entirely disappeared, and by the more slender antenne. ‘Ten individuals have 
been found. 
3. Maseochara robusta. 
Major, nigra, coriaceo-opaca, abdomine subnitido, nigricans, elytris sanguineis, tarsis piceis; capite, thorace 
elytrisque obsolete punctatis ; thorace transverso, basi cum angulis posterioribus omnino rotundatis ; tibiis 
. anterioribus et intermediis dense fulyo pubescentibus, illis apice unco curvato perelongato armatis. 
Long. 15 millim. 
Hab. Mexico, Tehuacan (Hége). 
Although I have seen only a single individual, I am not able to reduce this insect to 
a variety of M. semivelutina; the size is greater, the clothing of the front and middle 
tibiee is very dense and remarkable, and the development of the apical spur of the front 
legs is very conspicuous, and the middle cox are more widely separated. This unique 
individual is a female. 
4, Maseochara gracilis. 
Subparallela, opaca, abdomine subnitido, nigricans, elytris sanguineis; antennarum basi, palpis pedibusque 
rufis; capite, thorace elytrisque obsolete punctatis; thorace subtransverso, angulis posterioribus obtusis. 
Long. 53 millim. 
Hab. Mexico, Guanajuato (Dugés, coll. Sallé). 
Antenne with the four basal joints red, the others darker; fifth joint nearly as long 
as broad, the tenth evidently, but only slightly, transverse (in the male). Head rather 
broad and not elongate. Thorax evidently, but only slightly, broader than long, but 
little rounded at the sides, not much narrowed behind, the hind angles distinct, obtuse. 
Elytra about as long as the thorax. Hind body finely punctate, the punctures not 
dense, extending to the base of each segment. Legs red. 
This insect is closely allied to WZ. opacella, but is not half the size, has the antenne 
less elongate, and is easily distinguished by the colour of the legs, palpi, base of 
antenne and elytra. I have seen but a single individual; it is a male, and has the 
seventh dorsal plate armed with teeth like WM. semivelutina and M. opacelia. 
5. Maseochara depressa. 
Depressa, parcius pubescens, opaca, abdomine sat nitido, nigra, tibiis apicem versus picescentibus, tarsis rutfis ; 
capite, thorace elytrisque obsolete, minus subtiliter, punctatis; thorace transversim subquadrato, angulis 
posterioribus nullomodo rotundatis. 
Long. 4-5 millim. 
Hab. GuatTemata, near the city (Champion). 
AX 2 
