72 PROCEEDINGS OF THE NATIONAL MUSEUM vol. mi 



as tubercles usually densely and coarsely punctate, sometimes with a 

 smooth median area, pale with black occipital spot extending down 

 front, a darkened labrum. Antennae dark with paler basal joint, 

 third, foiu'th and fifth joints subequal, the fourth slightly the longest. 

 Prothorax approximately twice as wide as long, somewhat convex, 

 narrowed anteriorly with arcuate sides, alutaceous, densely and 

 moderately coarsely punctate, except sometimes a smooth median 

 linear area; entirely pale. Scutellum dark. Elytra broadly oblong 

 oval, convex, humeri not marked and with little trace of intrahumeral 

 sulcus, moderately coarsely and densely punctate and somewhat 

 shining, pale with wide sutural, median, and marginal vittae, the 

 sutural and marginal vittae uniting at apex. Body beneath sparsely 

 and indistinctly pubescent, shining black except prosternum and last 

 ventral segment, legs black with a light streak on outside of tibiae. 

 Length 4 to 5 mm., width 2.3 to 3.3 mm. 



Type: Wliereabouts unknown; described from a specimen collected 

 by Eschscholtz and Blaschke in California, near the shore. 



Other localities: United States: California and Nevada, One 

 specimen "ex Duvivier," labeled "S. America," probably incorrectly 

 labeled. 



Remarks: The South America locality is probably incorrect, but it 

 is quite possible that the species may turn up in Mexico, as it has been 

 collected in southern California. D. argentinensis Jacoby, although a 

 more slender beetle, is very similar in coloration and sculpture, 



Disonycha interlineata Berg 



Figure 49 

 Disonycha interlineata Berg, Ent. Zeitung, Stettin, vol. 42, p. 65, 1881, 



Between 6 and 7 mm, in length, oblong oval, moderately shining, 

 somewhat alutaceous, pale yellow, usually with a broad dark spot at 

 back of occiput and two tiny spots anteriorly on the pronotum, the 

 elytra with a narrow sutural vitta, a median vitta having within it a 

 pale inner line, and a washed out submarginal vitta; body beneath 

 with the middle of the breast and abdomen and sides of the prosternum 

 usually darker. 



Head with interocular space more than half width of head, pale, 

 usually with a broad dark spot over back of occiput, the mouthparts a 

 little deeper in coloring, a circle of coarse punctures on either side 

 near eye, the frontal tubercles separated b}?^ a deep groove usually and 

 below a broadly rounded carina. Antennae varying from pale 3^ellow- 

 ish to deep reddish brown with the 4 or 5 basal joints paler. Pro- 

 thorax twice as broad as long, narrowed anteriorly, moderately convex 

 with little trace of basal depression, faintly alutaceous, pale yellow 

 with two widely separated small dark spots anteriorly. Elytra 



