628 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 57. 



berry infested by secondary borers. Observations by Kirk and 

 Champlain. Reared from dead Moms rubra infested by Geramby- 

 cidae, J. N, Knull. 



CYMATODERA OVIPENNIS LeConte. 



Is a predator on Lepidopterous larvae infesting cones of Firms 

 jeffreyi; reared from cones of Pinns ponderosa and Pscudotsiiga 

 taxifolia; from Pifion pine infested with secondary Pityophthor^m 

 and from big cone spruce infested with Carphohoi-ns and GaTHdiuin. 



Obeservations by A. D, Hopkins in Ventura County, California, 

 and by J. M. Miller at Ashland, Oregon. 



Genus PRIOCERA Kirby. 



,' PRIOCERA CASTANEA Newman. 



Is apparently a predator on barkbeetles and borers in coniferous 

 trees. Larvae taken at Damascus, Virginia, from moist sap wood of 

 pitch pine killed by Dendroctonus frontalis by T. E. Snyder. From 

 pine at Tryon, Nortli Carolina, by W. F. Fiske. Adult on bark of pine 

 attacked by Dendroctonus valens at Flagstaff, Arizona, by J. L. 

 Webb. Adults taken at night near Harrisburg, Pennsylvania, by 

 H. B. Kirk. Adult flies during June. On dead hickory at night, 

 Pennsylvania, J. N. Knull. 



Genus TARSOSTENUS Spinola. 



TARSOSTENUS UNIVITTATTJS Rossi. 



Is principally a predator on powder post beetles as Lycttis and 

 Sinoxylon in dry, seasoned wood products. 



Reared from ash timber infested with Lyctus parallelocollis^ re- 

 ceived from Portsmouth Navy Yard; from hickory lumber infested 

 with Lyctus; persimmon blocks containing work of Lyctus and 

 Sinoxylon; white oak infested with Lyctus; from hickory axe handles 

 containing Lyctus., and other similar articles. Observations by T. E, 

 Snyder. 



Geuus THANASIMUS Latreille. 



THANASIMUS TRIFASCIATUS Say. 



Note by W. F. Fiske, made October 19, at Grand Lake, Michigan. 

 " Clerid adults and larvae in cells at base of Picea Idlled by Den- 

 droctonus. Clerid larvae were extremely common at base of tree. 

 They seemed to migrate there. From the location of some, it seems 

 as though they went into their pupal cells from the outside." Penn- 

 sylvania, reared from white pine. J. N. Knull. 



THANASIMUS DUBIUS Fabricius. 



Is a predator on barkbeetles, Ips., Dendroctonus., Polygraphus^ etc., 

 Pissodes and other borers in coniferous trees, mostly pine and 

 spruce. 



