uncharacterized species of Humolpide. 497 
Metaxyonycha tarsata. 
Subelongata, conyexa, fulva, nitida, antennis, basi 
exceptis, tarsisque nigris; thorace sat fortiter, irregulariter 
punctato, lateribus rotundatis, medio obsolete tridentatis ; 
elytris anguste oblongis, apice conjunctim angulato- 
rotundatis ; convexis, infra basin distincte transversim 
excavatis, elevato-costatis, interspatiis prope suturam 
uniseriatim, ceteris confuse biseriatim-punctatis ; utrin- 
que plaga subquadrata magna infra basin posita, fas- 
claque vix pone medium, nec suturam nec marginem 
attingenti lete cyaneis. Long. 43 lin. 
Hab. Parana; a single specimen from the collection 
of the late W. W, Saunders. 
Face excavated between the eyes; vertex and front 
finely but distinctly punctured; eyes rotundate-ovate, 
obsoletely sinuate; three lower joints of antenne fulvous, 
the rest black. Thorax twice as broad as long; sides 
rounded, their middle obsoletely tridentate; disk 
strongly punctured, distinctly excavated on the sides. 
Elytra much broader than the thorax, conjointly 
angulate-rotundate at the apex, transversely excavated 
below the basilar space, the excavation not extending to 
the suture; each elytron with nine strongly-raised 
longitudinal coste, the first short, the ninth more 
strongly raised than the others, the fifth and seventh 
united at their apices and forming a single ridge; the 
puncturing of the interspaces on the inner disk uni- 
seriate, the interspaces on the outer disk irregularly 
gemellato-punctate. 
Metaxyonycha distincta. 
Subelongata, convexa, sordide flava, nitida, antennis 
(basi excepta) tibiis dorso tarsisque nigro-piceis; thorace 
levi, disco remote- ad latera crebrius-punctato, lateribus 
tridentatis, dente postico fere obsoleto; elytris confuse 
subcrebre punctatis, punctis ad apicem confuse-striatim 
dispositis, interspatiis inter has strias convexiusculis ; 
utrinque macula parva oblonga intra callum humerale 
alteraque pone medium subrotundata, nigro-piceis. 
Long. 5 lin. 
Hab. Amazons, St. Paulo. 
TRANS. ENT. Soc. 1881.—PART Iv. (DEC.) 3T 
