The fact that the petiole of the nest of P. annularis is thickened from time to time as the weight of the nest increases shows that the wasps can adapt their behavior to the needs of the day, even though their chain of work is interrupted. The first part of the nest to be made is the petiole; this is made by the queen long before the first workers emerge.

In his paper on the genus Scolops (Kansas University Science Bulletin, Volume XVIII, page 417, 1928), Breakey comes to the conclusion that Scolops cockerelli Fowler is a synonym of Ball's Scolops robustus. On pages 427-428 he records the comparison of specimens of a number of closely related species with the type specimen of Fowler's species by Mr. W. E. China of the British Museum.

In an earlier paper (1925, Trans. Am. Ent. Soc., LI, 184) brief reference was made to larvae of Platyptilia fragilis in the seed-capsules of Pentstemon cyananthus, one of the common perennials of the sagebrush association. The presence of the larvae in the seed-capsules while feeding is not apparent, although a large portion of the seeds contained therein are eaten.

Runs in my key to Psallus (Hemiptera of Conn., 1923, p. 462) to the couplet with morrisoni Kngt. and parshleyi Kngt., but differs from both in having the second antennal segment yellow except at base.

The common snowy tree cricket (Occanthus niveus) of North America has made a prominent name for itself in American scientific literature. In fact none of our crickets have been so much discussed as this interesting pearly winged insect. There is something in its solemn, rhythmic, time-marking chirping that commands attention, so that all become impressed with its rhythmic music.