242 Memoirs on the Coleoptera 



flat, the dorsal punctures situated as in perita but smaller and 

 feebler; under surface black, without metallic lustre, the legs 

 faintly picescent. Length 4.0 mm.; width 1.85 mm. California 



(Sta. Barbara),— Dunn barbarae n. sp. 



Head smaller and more elongate, the prothorax narrower than in any 

 of the preceding three species, the body much smaller in size, deep 

 black and shining, the elytra violet-blue; under surface deep 

 greenish-black, the legs deep black; head slightly narrower than 

 the prothorax, decidedly elongate, with well developed and moder- 

 ately prominent eyes; front very smooth, with a few strigillae near 

 the eyes; antennae slender, only three joints remaining in the type; 

 prothorax two-thirds wider than long, widest before the middle, 

 the sides rather narrowly reflexed and distinctly arcuate anteriorly, 

 more widely deplanate basally, feebly converging and straight from 

 rather before the middle to the slightly obtuse but sharp basal 

 angles; surface with feeble loose subvermiculate sculpture; basal 

 lobe and furrow and median stria distinct; elytra a third longer than 

 wide, slightly wider posteriorly, twice as wide as the prothorax; 

 strise fine, feebly micro-subpunctulate, the intervals very nearly 

 flat. Length 3.75 mm.; width 1.5 mm. California (Placer Co.), — 



Koebele castigata n. sp. 



6 — Elytral striae not or only very feebly impressed 7 



Elytral striae more or less conspicuously impressed 16 



7 — Prothorax relatively small in size and less transverse 8 



Prothorax larger, about as in viridis, more transverse except in magica, 

 moderately reflexed toward the sides, more broadly and deeply in 



bracata 9 



8 — Body much smaller and narrower than in viridis, bluish-green, some- 

 times violaceous on the elytra, shining; under surface and legs 

 polished black; head moderate in size, with large and rather promi- 

 nent eyes, as wide as the prothorax; front smooth; antennae nearly 

 three-fifths as long as the body; prothorax three-fourths wider than 

 long, the sides subparallel, rounding anteriorly, deplanate at the 

 basal angles, which are rather sharply marked and almost right; 

 surface very finely, faintly or obsoletely rugulose; basal lobe and 

 channel distinct, the median stria rather deep, entire; elytra a third 

 longer than wide, more than twice as wide as the prothorax, slightly 

 inflated behind; strise somewhat fine, shallowly subimpressed and 

 slightly irregular, the intervals nearly flat. Length 3.25-3.7 mm.; 

 width 1. 35-1. 45 mm. Rhode Island (Boston Neck) and North 



Carolina (Southern Pines) adolescens n. sp. 



Body relatively narrower, more elongate, shining, the anterior parts dark 

 green, the elytra polished violaceous-blue; under surface and legs 

 polished, blackish-green; head fully as long as wide, as wide as the 

 prothorax, with prominent eyes, the surface minutely punctulate and 

 subrugulose, smoother medially; antennae half as long as the body; 

 prothorax three-fourths wider than long, subparallel, rounding at 

 the sides anteriorly and distinctly reflexed, very abruptly deplanate 

 posteriorly; edge just visibly sinuate near the basal angles, which 

 are as usual; surface finely and feebly subrugulose, the anterior 



