Contributions Toward a Monograph of the Scolytid Beetles volume 1
Contributions Toward a Monograph of the Scolytid Beetles volume 1
A D Andrew Delmar Hopkins
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" Male type: Length 5. 75 mm. ; elytral declivity with interspaces strongly convex and smooth, shining, sparsely punctured; striae deeply impressed, punctures obscure, otherwise as in female. Male type labeled il $ type, " name label, "Hopk. 1/22/08, " other- wise same as female. Variations. The length varies from 4 to 7 mm. , with the average about 6 mm. The color ranges from light reddish to nearly black. The usual variation in sculpture, vestiture, etc. , prevails. The greatest variation is ...in the size and color, and in the size of the punctures of the pronotum: The epistomal process varies consid- erably, so that in some specimens it extends beyond the epistomal margin, while in others it does not. Distinctive characters. This species and the one preceding are at once distinguished from all of the other species of the genus by the characters of the epistoma and from each other by the sculpture of the pronotum and the difference in average size of representative individuals. D. Pseudotsugse is distinguished especially by the shining and finely punctured pronotum.
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