In recent years there has been a growing tendency on the part of several eastern writers to place in synonymy races of our North American butterflies from widely separated localities. The attempt at simplifying our crowded check list is to be commended, but we do not see the advantage gained where such simplification is at the expense of the geographical race-concept.

It is generally admitted that the primitive position of the Arthropod mouth and its associated appendages is ventral, this position being evident in the early embryonic stages of all groups and retained in the adult stages of many forms, particularly among the Crustacea. It is by no means to be inferred from this, however, that this ventral position of the mouth is the primitive one in the Insecta as a class. Great variability exists among insects in the postembryonic stages in respect of this feature. The mouth and jaws are usually directed more or less forward and downward but vary from a wholly anterior position to a definitely ventral one, or they may even be directed posteriorly.

In working over our material in this group I have come to the conclusion that olivalis Grt. was incorrectly listed as a synonym of plagigera in the Barnes and McDunnough 1917 Check List.

On page 81, of the Manual, it will be noticed that the key to the genera of Tochyporini is somewhat ccnfused. The alternate to the fitst series of characters refers us to number seven of the key. As there is no number seven, I have thought it advisable to publish the key in corrected form. It seems obvious that Bradley in re-arranging the key desired to follow Leconte and Horn's sequence of genera, viz. Tachinus, Tachyporus, Leucoparyphus (Cilea), Physetoporus, Erchomus, and Conosoma.

Dr. Horn in his revision of the Galerucini places erosa, morosa and maritima as plain synonyms with puncticollis with the remark that no tangible difference seems to exist. In this he is wrong for on comparing typical puncticollis from Colorado, N. Dakota, etc. with maritima from the Atlantic coast the differences are very obvious. The latter have the prothorax much less roughly sculptured, more smooth, the elytral punctures are larger and more densely placed and the elytral pubescence generally scarcely visible, at least more easily abraded than in the typical form.

The recent publication by McAtee on protective adaptations should stimulate field observations on warning coloration, mimicry, and kindred phenomena. The incident described below should be of interest because of its bearing upon this subject.

Oblong, convex, shining black. Head convex without trace of tubercles, closely punctate; clypeus feebly emarginate, the angles broadly rounded, genae moderately prominent, antennae black. Pronotum one and one-half times as wide as long, side margins not explanate, hind angles distinct but obtuse, base feebly arcuate, basal marginal line entire and distinct, disk evenly convex, puncturation rather coarse and dense less so on vertex. Scutellum small.