. Annual report. 1st-12th, 1867-1878. Geology. PACKARD.] TEANSFOEMATIONS OF PLEOTOMUS FALLENS. 805 the interspaces witb scattered punctures. On the head between the eyes are five yellow spots; two simple dots, two long spots on the orbits, sending two projections outward, and a line in front sending three projections upward. Two unequal yellow spots under the eyes. Labrum and labium yellow. Five orange-yellow spots on each side of the end of the abdomen beneath. Length, inch. DiCBRCA PROLONaATA Le Coute. (Plate LXX, Fig. 13.) " Coppery gray, often pruinose ; width of thorax twice its
. Annual report. 1st-12th, 1867-1878. Geology. PACKARD.] TEANSFOEMATIONS OF PLEOTOMUS FALLENS. 805 the interspaces witb scattered punctures. On the head between the eyes are five yellow spots; two simple dots, two long spots on the orbits, sending two projections outward, and a line in front sending three projections upward. Two unequal yellow spots under the eyes. Labrum and labium yellow. Five orange-yellow spots on each side of the end of the abdomen beneath. Length, inch. DiCBRCA PROLONaATA Le Coute. (Plate LXX, Fig. 13.) " Coppery gray, often pruinose ; width of thorax twice its length, sides well rounded in front, behind somewhat sinuous, punctate, furrowed, each side with an oblique, deeply-impressed line; wing-covers with deeplj -impressed lines ; apex rounded, the wing-covers scarcely divari- cate. Length, ;—(Le Conte.) MELANOPHILA DRUMMONDlKir- by. (Plate LXX, Fig. 14.) Body densely punctured, sha- greened; shining, reflecting me- tallic colors, especially on the prothorax, with three bright yel- low spots on the posterior two- thirds of each wing-cover, the anterior spot being the larger. Length, inch. The Girdler, Oncideres cingu- latus Say. (Fig. 67.) Although this beetle is not known to inhabit Colorado or the Eiocky Mountains,! have thought it well to introduce the following figure received from Prof. I. S. Haldeman, of Chickies, Pa., as illustrating its mode of cutting off hickory branches. Professor Haldeman's account is given at length in the " Guide to the Study of Insects", p. 498. " Fig. 67.—Work of tlie Girdler INSECTS NOT SPECIALLY INJUEIOUS. The Transformations of Pleotomus fallens Le Conte. It is not improbable that this insect in its early stage as a larva is beneficial to vegetation, since so far as known the young of our fire-flies devour worms, other larva, and snails, but the individuals of this species are so rare, that they probably exert but a slight influence for good or
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