498 Mr. J. SPaly's Descriptions of 
Face deeply excavated between the eyes, vertex shining, 
nearly impunctate; eyes large, oval, slightly sinuate ; 
antenne nearly equal to the body in length, slender, 
filiform, the four lower joints flavous, the rest nigro- 
piceous. Thorax about two-thirds as broad again as 
long; sides armed with three short teeth, the medial one 
(placed on the middle of the margin) longer, subacute, 
the lateral ones shorter and obtuse, the posterior tooth, 
placed half-way between the middle and the base, 
nearly obsolete; all the angles mucronate. Scutellum 
narrowly edged with piceous. EHlytra oblong, angulate- 
rotundate at the apex; above convex, the humeral callus 
prominent; surface rather closely but not very strongly 
punctured, the punctures near the apex irregularly 
arranged in longitudinal rows, the interspaces between 
which are slightly convex. 
Nearly allied to M. humeralis, Marsh.; more than 
twice the size, more convex, the elytra differently 
sculptured ; the basal spot on the elytron situated on 
the inner side of the humeral callus, and not on the 
callus itself, as in the other species. 
Metaxyonycha retifera. 
Oblonga, convexa, nigra, nitida; thorace crebre 
punctato, subruguloso, lateribus oblique rotundato- 
angustatis, angulis acutis; elytris nigro-purpureis, 
sutura anguste enea; utrinque rete crassa valde elevata 
rufa, areolas irregulares parvas, fundo crebre punctatas 
includenti, instructis. Long. 5 lin. 
Hab. Parana. 
Head distinctly punctured, labrum fulvous, five lower 
joints of the antenne slender (the rest broken off). Thorax 
nearly twice as broad as long at the base; sides slightly 
rounded, obliquely converging from the base to the apex, 
all the angles acute; disk closely punctured, subrugulose. 
Elytra convex, conjointly angulate at the apex, each 
elytron entirely covered (the outer limb and the sutural 
margin excepted) with a strongly-raised coarse irregular 
rufous network, which encloses numerous closely-punc- 
tured, irregular cell-like spaces; this network is formed 
by seven coarse strongly-raised longitudinal costz, dis- 
torted and rendered indistinct by a number of trans- 
verse ridges equal in length and thickness to the coste 
