376 CALIFORNIA ACADEMY OF SCIENCES. 



densely cribrate and opaque. By the characters used by 

 me in an analytical table of the group its position should 

 be near ctiJta et seq., all of which are scarcely more than 

 half the length of this one, yN\)S\^ gemina alone has similar 

 thoracic sculpture. By facies the species is best placed 

 near obtiisa and consors. 



One specimen from Texas; localit}^ unknown. 



ACM^ODERA NEBULOSA n. Sp. 



Form of culta, piceous, opaque, a feeble bronze lustre 

 to the head, thorax and under side, elytra reticulate with 

 yellow markings. Antennae with joints gradually wider, 

 the fifth not abruptly wider than the fourth. Head crib- 

 rately punctured, sparsely hairy, front not impressed. 

 Thorax uncolored, a little more than twice as wide as long, 

 scarcely narrower at apex than at base, sides arcuate, 

 lateral margin entirely obliterated, disc convex without 

 median or lateral impressions, a small fovea each side at 

 base, surface densely but not deeply punctate, resembling 

 crowded reticulations, sparsely hairy. Elytra not wider 

 than the thorax, parallel, gradually narrowed at apical 

 third and serrulate, disc moderately convex with stria? of 

 coarse, deep, closely placed, round punctures, nearly as 

 wide as the intervals, these flat, somewhat rugose, each 

 with a row of punctures bearing a short black hair, sur- 

 face opaque piceous with numerous small yellow spots 

 intricately joined. Prosternum truncate in front, sur- 

 face cribrately punctured. Mesosternum closely coarsely 

 punctured. Abdomen subopaque with a somewhat 

 rugose aspect, the punctuation relatively coarse and 

 dense. Last ventral with single apical margin. Body 

 beneath sparsely clothed with short whitish hair. Length, 

 .24— .28 inch; 6—7 mm. 



The prosternum being squarely truncate beneath places 



