No. 2323. LARVAE OF THE GLERIDAE—BOVING AND CHAMPLAIN. 631 



the earth, holds together the loose particles and forms a sort of 

 cocoon. 



They are all active and strong fliers and are predaceous in both 

 adult and larval stages. 



ENOCLERUS HUMERALIS Schaeffer. 



Adults emerged from infested <.'ones of Pseudotsuga tcKcifolia^ 

 Waldo, Oregon, August 16, 1914, P. D. Sergent, predaceous Clerid 

 feeding on the insects which are issuing from cones of P. taxifolia. 

 Quincy, California, September 21, 1916. Observations by F. P. Keen. 



ENOCLERUS QUADRIGUTTATUS Oliyier. 



Is a predator on the larvae and adults of 8colytoids and Pissodes 

 in coniferous trees, pine, spruce, juniper, etc., and on Scolytoids^ 

 Curculionids and small borers in hardwood trees, butternut, ash, mul- 

 berry, wild cherry, etc. 



Adults are diurnal and may be observed running over infested trees 

 throughout the summer months. Adults have been found during the 

 winter months beneath bark and debris and it is very probable that 

 this is the general method of overwintering. 



All records show that this is a common species and one that could 

 be utilized in control. 



W. F. Fiske notes the feeding of this species on the larvae of 

 Pissodes strobi in white pine terminals. " Three Clerid larvae were 

 found with the Pissodes in terminals examined. One of the larger 

 ones was found in the cells of a Pissodes which was partly devoured 

 and its tracks could be traced backward throiigh four and possibly 

 six empty cells." 



Dr. A. D. Hopkins records pupae and adults in white lined pupa 

 cases in outer bark at base of White Pine stump infested by Hylur- 

 gops. August 27. Also larvae and pupae in cocoons in outer loose 

 bark of red cedar, August 6. 



The species is distributed throughout the eastern part of the United 

 States to the Mississippi and in the southwest. 



ENOCLERUS ROSMARUS Say. 



Adults are found on flowers during summer months. Falls Church, 

 Virginia, H. B. Kirk, Sumac. Reared at eastern station. Pennsyl- 

 vania, Kirk, KnuU, Champlain. 



ENOCLERUS EXIMIUS Mannerheim. 



Clerid adult on live oak limb September IT. Chiricahua Moun- 

 tains, Arizona. J. L. Webb. 



ENOCLERUS MUTTKOWSKII Wolcott. 



Clerid larva under bark of Tsuga canadensis. Bemis, West Vir- 

 ginia. Collected by H. G. Champion. Reared at eastern station. 



