1931 ] 
Notes on the Genus Ephemerella 
35 
the segments surrounded at their bases with a circlet of 
stiff bristle-like hairs. 
This nymph was collected only in North Harford Brook 
on May 16, 17 and 21. It had disappeared from here by 
June 23. It was collected from the mud-gathering roots of 
the vegetation along the edges of the stream in fairly great 
numbers, and was usually buried so deeply in the mud that 
it was difficult to discern and capture. 
HYPERASPIS PALUDICOLA SZ. 
Described from Florida. For many years I have owned 
a specimen doubtfully named as above, which bore the 
label “Provincetown, Mass.,” without other information. On 
examining the catch of July 5, 1930, made at Dennis, Mass., 
I found several specimens of the same thing, and have now 
come to the conclusion that this is another of the many 
instances of the occurrence of southern species of beetles 
in the sand plain area of Massachusetts. 
HYPERASPIS DISCONOTATA MULS. 
This beetle was described from “L. Sup.,” and one record 
appears in the N. Y. List from “Cascade. Aug.” 
I took one specimen by sweeping grass on June 5, 1927, 
and one on May 31, 1930, probably by sweeping in the same 
meadow in Sherborn, Mass. 
C. A. Frost, Framingham, Mass. 
