. Carnegie Institution of Washington publication. 66 EVOLUTION IN COLOR-PATTERN OF THE LADY-BEETLES. Genus OLLA Casey. The color-pattern in this genus is so diverse in its elements and lines of variation from Coccinella that I believe that it is entitled to more than the subgeneric rank which Leng gives it. It has stronger resemblances to Neoharmonia ampla in its color-pattern than to any Coccinella. 3065 a. Olla abdominalis Say. Distribution: Indiana to Texas, Arizona to California. The crescentic shape of the subsutural intermediate spot has its parallel in Neoharmonia venusta and ampla and
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. Carnegie Institution of Washington publication. 66 EVOLUTION IN COLOR-PATTERN OF THE LADY-BEETLES. Genus OLLA Casey. The color-pattern in this genus is so diverse in its elements and lines of variation from Coccinella that I believe that it is entitled to more than the subgeneric rank which Leng gives it. It has stronger resemblances to Neoharmonia ampla in its color-pattern than to any Coccinella. 3065 a. Olla abdominalis Say. Distribution: Indiana to Texas, Arizona to California. The crescentic shape of the subsutural intermediate spot has its parallel in Neoharmonia venusta and ampla and one specimen of H. convergens. The variation in the color-pattern of the pronotum is given in fig. 67.. Fu;. (57.—Variation of prouotal pattern of O. abdominalis. 6=mode. Var. sciitilumirix, n. var. The subsutural and intermediate spots of the intermediate row are fused and extended towards the apex to make a bowl-shaped mark (fig. 68). This ex- tension is a unique feature, for it is not an equilateral enlargement nor a confluence of spots, but a determinate extension in one direction. Arizona and Texas. Var. mi)inta Casey. The elements of the intermediate row and the apical spot are confluent, but with reentrant angles (fig. 68). Brownsville, Texas.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Carnegie Institution of Washington. Washington, Carnegie Institution of Washington