Baconia festiva Lewis 1891

Baconia festiva is a species of clown beetle in the family Histeridae. It is found in South America.

Length: [not measured, ~2.5mm], width: [not measured, ~1.5mm]; body broadly elongate oval, strongly depressed, glabrous; head, pronotum and pygidia dully metallic greenish-blue, elytra slightly more blue in color, venter rufo-brunneus; frons rather flat, interocular margins weakly convergent dorsad, disk with numerous coarse punctures at middle, frontal stria present along inner margin of eye, curved across middle, interrupted for about half epistomal width; epistoma weakly emarginate apically; labrum about 3×wider than long, apex weakly arcuate; mandibles short; pronotal sides weakly, more or less evenly, curved to anterior corners, disk depressed along anterior fourth of lateral margin, marginal stria complete around lateral and anterior margins, submarginal stria absent, disk with coarse punctures at extreme sides separated by about twice their diameters; elytra with outer subhumeral stria absent, inner subhumeral stria present in about basal one-fifth and for short distance at middle, dorsal striae 1-4 complete, 5th stria present in apical half, sutural stria present as very short apical fragment, elytral disk with scattered secondary punctures in apical fourth; prosternal keel broad, weakly convex, base broadly, weakly produced, carinal striae complete, separate, diverging slightly to front; prosternal lobe about two-thirds keel length, apical margin bluntly rounded, marginal stria obsolete at sides; mesoventrite broadly, shallowly emarginate, marginal stria interrupted for width of emargination; mesometaventral stria arched strongly forward, weakly crenulate, narrowly detached at sides, inner lateral metaventral stria originating close to mesocoxa, extending obliquely posterolaterad toward posterior corner of metepisternum, abbreviated apically, outer lateral metaventral stria briefly indicated at base, metaventral and 1st abdominal disks impunctate at middle; abdominal ventrite 1 with single, complete lateral stria; protibia with four marginal denticles, the basalmost weak, outer margin serrulate between; mesotibia with single fine marginal spine; outer metatibial margin smooth; pygidia short and wide, propygidium with complete transverse basal stria, secondary punctures rather deep, separated by about their diameters or slightly more; pygidium with fine ground punctation and small, sparse secondary punctures more or less uniformly interspersed. Male genitalia: not known.