lIrU'r()})lrr(i of (^rtnihrrnj l.ah-r liCf/lan 07 



])}■ fill- most coinnion on willow. Mauy adulls and iiymplis, repro- 

 senting' three or four instars, were collected on SaJix spp. dnrinjr 

 the summers of 1917, 1919 and 1920. Adults have been observed 

 in the field Avith their beaks impaled in Corj/thucha elegans Drake, 

 C. molUcuJa 0. & D. and C. paJlipes Parshley. The writer has 

 also found the insect in the egg-galleries of several bark beetles 

 (Ohio Journal Science, Vol. • XXI, 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; h). 



This peculiar and very interesting insect was only taken in 

 the nymphal stages. It lives largely in the burrows of bark and 

 ambrosia beetles or in the crevices and beneath the scales of the 

 bark of coniferous ti-ees, particularly spruce. It is rarely found 

 in the galleries of Ipidae in hardwoods. Specimens (Drake, Ohio 

 Journal of Science, Vol. XXI, pp. 201-206, 1921) have been found 

 in the burrows of Polygraphus rufipemiis Kirby, Dryocoefes piceae 

 Hopkins, Dryocoetes aniericana Hopkins, Orthotomicus caelatits 

 Eichlr., Trypodendron hivittatum Kirby, Ips pini Say, Pityogenes 

 hopkinsi Swaine, Ti'ypodendron betulae Swaine, Anisandrus 

 ohesus he Conte and Xyloterinus politus Say. Four distinct 

 nymphal stages were found in the burrows of Polygraphus rufipen- 

 nis, Dryocoetes aniericana and Orthotomicus caclatus 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 befoi-e 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 bark 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 piceoiis and shining. Abdomen 

 beneath dark pieeous sometimes slightly tinged with reddish brown, 

 the pubescence sparse and grayish. Hemelytra brown or dark 

 brown, with greater part of embolium and cuneus lighter; mem- 

 brane smoky, usually with pale streaks following the nervures. 

 Pubescence fine, slightly, curled, pale. Antennae dark brown, the 



