ANTHOCORIDAE Asthenidea temnostethoides neuter (Plate 11; r, 0d011).
Two specimens, collected at Barber Point, Sept. 16, 1917, August. 5, 1920. Van Duzee gives its habitat as Illinois (fide Barber).
Anthocoris borealis Dallas (Plate 1 e, adult, and f, nymph in last instar).
This preditor is a common in eastern United States and Canada. My records indicate that it is primarily a tree-inhabiting, species and preys largely upon leaf-feeding insects. It shows a decided preference for deciduous leaf-destroying insects and seems to•be by far most common on willow. Many adults and nymphs, repre senting three or four instars, were collected on ,'','(//ix spp. during the summers of 1917, 1919 and 1920. Adults have been observed in the field with their beaks impaled in Corythucha olegans Drake. C. mol/ic-ulu O. & D. and C. paitipes Parshley. The writer has also found the insect in the egg-galleries of several bark beetles (Ohio Journal Science, Vol. • XXT, pp. 201-206, 1921), but it does not seem to breed or normally live there. Field observations during the summers of 1919 and 1920 show only one generation a year, the first adults beginning to emerge about the middle of July. Only the larger nymphs and adults were collected during the latter part of the summers.
Anthocoris — sp. (Plate II; b).
This peculiar and very interesting insect was only taken in the nymphal stages. Tt lives largely in the burrows of bark and ambrosia beetles or in the crevices and beneath the scales of the bark of coniferous trees, particularly spruce. It is rarely found in the galleries of Ipidue in hardwoods. Specimens (Drake, Ohio Journal of Science, Vol. XXI, pp. 201-206, 1921) have been found in the burrow's of Polygraph us Kirby, Dryocoetes piceae Hopkins, Dryocoetes americana Hopkins, Orthotomicus caelatus Trypodendron bivittatumn Kirby, 'fps pini Say, Pityogenes hopkinsi Swaine, Trypodendron betulae Swaine, Anisa.ndrus obesas Tie Conte and Xyloterinus politus Say. Four distinct nymphal stages were found in the burrows of Polygraphus ratfipen Ais, Dryocoetes americana and 0 rthotomirus caelatus in spruce logs that had been felled during the previous winter (1919). Only very young nymphs, probably the second and third instar were found during the latter part of May and forepart of June; later in the summer only the large nymphs were collected. Nymphs, probably in the last two instars, were placed in breeding cages at Barber Point and then carried to Syracuse about the first of September. These specimens were fed small insects, but they all died before they reached the mature state. Records seem to indi cate that the adult state is probably found during the late fall. Numerous specimens taken in the field about the first of September, 1920, were mostly in the last instar. The insect_ is undoubtedly
an important enemy of both hark and ambrosia beetles, also other small and very young larvae of wood-destroying insects. In the breeding cages the nymphs readily feed upon small larvae and insects, also upon dead larvae and dead insects.
Tetraphleps osborni n. sp. (Plate II; (/).
Head, thorax and abdomen dark piceous and shining. Abdomen beneath dark piceons sometimes slightly tinged with reddish brown, the pubescence sparse and grayish. Tiemelytra brown or dark brown, with greater part of embolium and curious lighter; mem brane smoky, usually with pale streaks following the nervures. Pubeseenee fine, slightly, curled, pale. Antennae dark brown, the second segment lighter; third and fourth segments subequa I in length; second segment equal to the first and third conjoined, the first slightly more than half the length of the third. Legs with basal portion of femora and tarsi dark brown to nearly black, the rest lighter.
Pronotum with explanate margins distinctly and roundly emarginate on the posterior border, distinctly and transversely rugulose on the coltum and basal portion, a smooth somewhat crescent-shaped area just back of the collum, the pubescence gray ish, fine and mostly prostrate. Rost nun reaching between the middle coxae. Ilead quite sparsely pubescent, its length distinctly longer than its width (diameter through eyes). Male gental ehaspeis curved. Length :3.2 —3.45 nun.; width 1.15 — 1.27 min.
Numerous specimens, taken on white pine trees, at Barber Point, Wanakena and the Plains during July, August and September, 1917, 1919 and 1920. The male is a little more slender than the female. This insect seems to feed largely upon the leaf-feeding in sects of conifers, particularly white pine, Pinus strobus. Nymphs and adults could he found at all times during the summer upon the pine trees but only larger nymphs and adults during the latter part of the season. There is only one generation a year. The insect has been bred from the burrows of Cryptorhynchus lapathi by the writer (1. e., p. 203). I am indebted to Dr. H. M. Parshley for kindly comparing this insect with his types of T. concolor and T. americans.
Triphleps insidiosus (Say) (Plate 11; a).
This is a common species in the family. It is a grass- and an herb-inhabiting insect., especially common in open grassy areas. It is also predaceous and adults have been reported as feeding upon eggs as well as nymphs and adults of other insects. Barber Point, Wanakena, Conifer, and Plains, June, July, August and September, 1917, 1919 and 1920.