CALIFORNIA ACADEMY OF SCIENCES. 293 



nearly three times as wide at base as at the apex, the elytra 

 being quadrate. 



The present sj^ecies was found ratlier abundantly in the 

 very wet moss lining the inside of a flume or trough for 

 conveying spring water. 



C, eximia. u- sp. — Form slender; bla^k, legs piceous-black, tarsi paler, ab- 

 domen scarcely perceptibly paler toward the base, antennae not paler at base; 

 pubescence rather long and coarse, somewhat sparse; integuments polished. 

 Head very slightly longer than wide, nearly as in gracilis; antennte long and 

 very slender, longer than the head and prothorax together, three basal joints 

 flqual in length, tenth distinctly longer than wide, eleventh as long as the 

 two preceding together. Prothorax widest at two-fifths its length from the 

 apex where it is distinctly narrower than the head and distinctly narrower 

 than long; sides strongly convergent and nearly straight to the apex, very 

 feebly convergent and feebly iucnrvate to the base; the latter very broadly 

 and rather strongly arcuate, just visibly narrower than the disk and much 

 more than twice as wide as the apex; disk strongly convex, very finely and 

 si^arsely punctate. Elytra at base one-half wider than the pronotum; sides 

 parallel and feebly arcuate, strongly convergent and arcuate near the apices; 

 topether slightly looger than wide, moderately incurvate posteriorly and 

 insinuate; disk about one-third longer than the pronotum, rather finely and 

 sparsely punctate, especially posteriorly, where the punctures are minute and 

 distant. Abdomen at base about as wide as the pronotum and at the apex of 

 the fourth segment scarcely one-half wider; six'h segment very finely and 

 sparsely punctate, otherwise nearly as in gracilis. Legs very slender; first 

 joint of the posterior tarsi distinctly longer than the next two together 

 claws extremely long and slender. Length 2.8-3.5 mm. 



California (Gilroy Springs, Sta. Clara Co., 9; Hermitage, 

 Mendocino Co. 1). 



Described from the male in which the characters are as in 

 gracilis; the female is slightly more robust, the prothorax 

 shorter and broader, the elytra quadrate, the two basal 

 joints of antennae equal in length and distinctly longer than 

 the third, and the sixth ventral segment obtusely rounded 

 behind, and very feebly and minutely sinuate at the imme- 

 diate apex. The species is distinguished from its allies by 

 its line and rather sparse punctuation and coarser and 

 sparser pubescence. 



