130 MEMOIRS ON THE COLEOPTERA 



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Paradilacra memnonia n. sp. More slender, black throughout, the 

 legs in great part black, the lustre rather less dull than in any of the 

 preceding, except the elytra which are similarly opaque, the minute 

 punctures very close-set but not quite so dense, especially on the abdo- 

 men; head but little wider than long, three-fourths as wide as the pro- 

 thorax, the eyes moderate, at rather more than their own length from 

 the base, the tempora very little more prominent, parallel and broadly 

 rounded; antennae only moderately long, thicker than in the preceding 

 and gradually though very evidently incrassate distally, the third joint 

 more slender though scarcely visibly shorter than the second, four to six 

 slightly elongate, seven to ten passing from as long as wide to evidently 

 wider than long, the last about as long as the two preceding; prothorax 

 relatively rather small, a third wider than long, widest anteriorly, the 

 sides there broadly rounded, sensibly converging and nearly straight 

 thence to the base, the median line not at all impressed, the surface 

 with a very feeble transverse ante-scutellar impression; elytra moderately 

 transverse, scarcely visibly picescent, subparallel, fully a fourth wider, 

 the suture nearly a third longer, than the prothorax; abdomen much 

 narrower than the elytra, parallel, the three basal impressions subequal, 

 rather broadly concave, more shining and with scattered and slightly 

 larger punctures. Length 2.6 mm.; width 0.58 mm. California (Clover- 

 dale, north of Sta. Rosa). 



This species may be known by its very moderate eyes, sensibly 

 incrassate antennae, rather less dense punctures of the abdomen 

 and smaller prothorax, without an impressed median line but with 

 a fine feeble transverse basal impression, which is unobservable 

 elsewhere. 



Paradilacra per sola Csy., has much shorter antennae than any 

 other California form known to me, but they are very slender and 

 subfiliform; I have discovered another example in my cabinet, 

 taken at San Francisco. 



Paradilacra vulgatula n. sp. Small and slender, piceous-black, the 

 head and abdomen deep black, the legs blackish; lustre dull, the minute 

 and very dense punctures becoming less minute and more separated 

 on more or less of the three basal tergites; pubescence short and close; 

 head rather small, subtriangular, distinctly inflated basally, a little 

 wider than long and nearly three-fourths as wide as the prothorax, 

 the eyes well developed, at a little less than their own length from the 

 base; antennee piceous-brown, only moderately long, very slender and 

 but just visibly incrassulate, the third joint not evidently shorter than 

 the second, four to six distinctly longer than wide, seven to ten very 

 little shorter than wide, the last almost as long as the two preceding; 

 prothorax nearly two-fifths wider than long, widest anteriorly, where 

 the sides are rather broadly rounded, thence evidently converging and 

 straighter to the base, the basal impression small, rounded and almost 



