132 Journal New York Entomological Society. [Voi. xi. with the tenth which has the anterior end convex with a rather abrupt central pro-tuberance, and the posterior end subtruncate. Forceps shorter than the last or tenth segn'ent, which is nearly as large as the eighth and ninth together, the ninth being about one half the size of the eighth. Forceps and last segment of the abdomen light brown, the rest of the insect whitish. The whole insect covered sparsely with hair-like bristles, these densest on the forceps. Abdominal appendages present, but minute. Right arm of forceps with a large, broad based, sharply pointed and slightly backward inclining tooth, placed on the lower inner margin and distant from the base about one fourth the length of the arm. From this tooth to the base the arm is slightly concave, but about equal in thickness throughout ; distally from the tooth the margin is very abruptly deflexed inwardly (sometimes almost at a right angle), for about one third the width of the arm ; at the end of this smooth sinus is a denticule, generally broad and blunt, and some distance from this another similar one and be-tween these two are often traces of two very blunt tubercles ; then the margin is again deflexed, somewhat sharply and obliquely, this interrupted by two equal, saw-tooth-like denticules, always distinct and about equidistant from each other and the second denticule. No superior row of teeth. The left arm is very similar to the right and presents no constant difference either in size, strength or dentation. Length without antennae 3.85 mm.; length of antennae .73 mm.; length of abdo-men 2.55 mm.; length of last abdominal segment and forceps .43 mm.; length of forceps .17 mm. Habitat : Southeastern Nebraska. Four specimens of this little Japyx are in the collection of the University of Nebraska taken as follows : Malcolm, Nebr., May 4, 1901, one specimen ; Crab Orchard, Nebr., May 7, 1901, one speci-men; Adams, Nebr., May 11, 1901, two specimens. In all cases they were taken from among the roots of wheat growing in damp soil, and are probably quite common when carefully looked for. It is very different from any described species and may easily be distinguished by the combination of very small size, itw joints in the antennae, the head longer than broad, and the shape of the last three abdominal segments, as well as by the similarity of the two arms and the peculiar dentation of the forceps. COLOR-PREFERENCE IN INSECTS. By a. S. Packard. In my "Text Book of Entomology" I have briefly stated from what sources I had access to, the little that was known up to 1898 as to the color-preferences of insects. It appears that few observations
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