1898.] ENTOMOLOGICAL NEWS. 235 despoiled of its leaves, and its peculiar appearance, with noth-ing but its long slender pods depending from its branches. It is said that, in the South, Catalpa trees are planted in order that the larvae may be obtained for bait. I would call attention to to this fact so that those who may be piscatorially inclined can take advantage of it. o RECOLLECTIONS OF OLD COLLECTING GROUNDS. By H. F. WICKHAM, Iowa City, Iowa. VI. THE COLORADO DESERT AND ITS ENVIRONS (Concluded). At Yuma, where I stopped for a few days two years later, a number of the same features were noticed that marked collecting at The Needles, but some species were taken that I had not met with at the latter place. In the willow trees along the river bottom I found considerable numbers of Chalcolepidius webbii and many specimens of a fine black and orange colored Long-horn, Dendobrias mandibularis. I think this Dendobrias must feed, as a larva, on willows, at least in those spots where the tree grows. The adults may often be seen pairing on the living trunks. Nevertheless, I have occasionally captured the beetles in the semi-desert regions of Arizona, far from water, and con-sequently distant from any willow trees. There is great variation in size, color and mandibular development, even in the same sex. Some males show scarcely any trace of the transverse post-median black band which is so characteristic of fully marked specimens. Some Staphylinida; were obtained by throwing water on banks of pools or by rolling over pieces of wood in wet places. Among them I may enumerate Actobiu's, pccderoides, A. grains, Stemts incultus, Cryptobium arizonense, Sunius simi/is, Trogophl&us dentiger, T. gilce and T. tantillus. Under bark I took Adelina lecontei, Ditoma ornata and D. sulcata. On mesquit trees or on posts of this same wood were secured specimens of Chrysobotliris odocola, Acm&odera gibbula and Polycesta velasco. A magnifi-cent Chrysobotliris atrofasciata was seen at rest on a bush and created quite a flutter of excitement until safely landed in my bottle. The Buprestidae are so active in very hot climates that they often escape after being located, and it is no easy matter to
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