74 
Psyche 
[April 
lowing list was compiled which includes practically all of the 
species taken. 
CoLEOPTERA 
Nearly all of the members of this order have been identified 
by one of my students, Mr. P. J. Darlington, Jr. 
Family Rhipiphoridce 
Pelecotoma flavipes Melsh. Twenty-one specmens of both 
sexes of this rare species, July 13-28. This has been reported 
emerging from beech wood, but the present specimens came from 
that of some other tree, probably red maple. The habits of the 
larvse appear to be unknown, although the genus is undoubtedly 
parasitic. 
Family Pyrochroidce 
Dendroides hicolor Newm. Three males July 13 and 18. 
This species breeds commonly in various deciduous trees such as 
oak, maple, beech and birch 
Dendroides concolor Newm. One female July 13. This 
species is known to feed upon the same trees as the foregoing. 
Family Elateridce 
Melanotus trapezoideus Lee. One specimen, July 20. 
Melanotus pertinax Say. One specimen, July 13. Members 
of this genus are commonly taken beneath the bark of various 
trees. 
Family Melasidce ( Eucnemidce ) 
Isorhipis ruficornis Say. 245 specimens representing both 
sexes in the proportion of 127 males to 118 females. This species 
was the most abundant insect in the present collection. It was 
taken first on July 13 and was still appearing when the last col- 
lections were made late in September although present in greatest 
numbers late in July. The species has been found in beech and 
soft maple and most if not all of the present series emerged from 
red maple. 
