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depressed at suture, regularly jiunctate-striate ; third interspace with a subbasal 

 and an antemedian tubercle, both rather prominent, brown, second the larger ; 

 alternate interspace slightly costate, base depressed, apex gradually rounded- 

 declivous. First segment twice the length of second. 



Length, 3i mm. 



Ilab. Sierra do Dnrango, Mexico. 



1 S. 



35. Monocloeus costatus spec. nov. 



c? V' . Black-brown, dotted all over with a luteous grey jmbescence ; dots 

 small on pronotum. Eye not very prominent, nearly half as long again as broad, 

 entire, not eniarginate or incised below. Rostrum flat, truncate, widest at apex, 

 sliglitly angulate above antennal cavity, as long as broad. Antenna brown, end- 

 segment luteous, 3 not quite twice the length of 2 and of 4, 7 twice as long as 

 broad, S dilated, 9 a little longer than broad, rather broader at the base than in 

 the previous species, 10 one-fourth broader than long, nearly rectangular, 11 ovate, 

 acuminate at apex, obtuse at base. Prothorax much longer than broad, evenly 

 convex, carina at basal fourth, evenly concave, becoming straight only at the 

 sides, subbasal carina distinct. Scntellum clay, transverse. Elytra convex, 

 alternate interspaces costate, third highest behind base and in middle, the costae 

 brown, this colour interrupted by sharply defined luteous dots ; an ill-defined 

 lateral antemedian space without dots. Femora and tibiae densely dotted with 

 luteous grey, apical half of tibiae and tarsal segments 2 to 4 brown, segment 1 

 grey. 



Length, Ah to 5 mm. 



lldb. Cochabamba, Bolivia (Germain). 



One pair. 



30. Monocloeus centralis spec. uov. 



f?. Brown-black, irrorated with an olivaceous clay pubescence. Rostrum 

 grey like cheek, as long as broad, somewhat dilated above antennal cavity, slightly 

 narrowed apically, shallowly sinuate in middle of apical margin, flat above, with 

 a small central groove and on each side in middle a transverse carina. Frons 

 very narrow, hardly one-sixth the width of the rostrum. Eye large, very faintly 

 emarginate below. Antenna reaching base of elytrnm, segments 1, 2, 7, 8, apical 

 half of 11 and tips of 3 to rufous, 3 = 4 twice the length of 2, 8 not thicker 

 than 7 and only half its length, 9 elongate-triangular, more than twice as long 

 as broad, in lialf as long again as broad, rounded at base, 11 elongate-elliptical, 

 very obtnse, longer than 9 and a little broader. Prothorax a little broader thfin 

 long, evenly convex, with two large black jiatches at base, a transverse central 

 spot and some ill-defined lateral ones devoid of clay pubescence ; carina behind 

 basal third, evenly concave, curved forward at side, basal longitudinal carina not 

 obsolete. Scutellura grey, transverse, produced into an acute point between 

 the elytra. These not tuberculate, convex, slightly depressed behind at suture, 

 depressed around the subbasal callosity, which is evenly convex and only slightly 

 elevate, regularly punctate-striate, dotted with clay and black in alternate inter- 

 spaces, a large transversely elliptical velvety-black spot in middle of suture, 

 expanded between stripes 5, bordered with clay. Pygidium truncate, angles 



