== 86— 
CEcanthus niveus, Serville. 
Ue fasciatus, Fitch. 
rs angustipennis, Fitch. 
ee bipunctatus, DeGeer. 
These insects reach maturity in late June and in July... Concerning 
angustipennis and fascia/us there has been much question, but they are, 
I think, distinct from aveus. Their structure is not the same and their 
stridulation is different. That of mveus is a bead, beat, pulsating sound ; 
that of angustipennis, a faint continuous whir lasting only about five 
seconds with an equal interval of rest, and that of fasciatus, a long and 
comparatively loud, continuous whir often lasting several minutes. In 
addition these insects are not often found inhabiting the same bushes 
and trees. Their nuptial attentions are amusing. I have seen the 
‘slender (canthus” dovour its pupa skin after ariving at the perfect 
State. 
LOCUSTID. 
Ceuthophilus maculatus, Harris. Sept. 
Cyrtophyllus concavus, Harris Late July and Aug. 
Amblycorypha oblongifolia, DeGeer.. Aug. 
a rotundifolia, Scudder. Auyust 2nd. 
Microcentrum retinervis, Burm. Aug. 
Scudderia curvicauda, DeGeer, Aug. 6th. 
Conocephalus ensiger, Harris. July gth. 
f exilicanorus, Davis. Aug. 
This insect is plentiful along the salt water creeks in certain localities 
on the Island and its stridulation as well as its form resembles that of 
ensiger more than any other native Conocephalus. We cannot count with 
any accuracy in ensiger the number of times one wing is drawn over the 
other as indicated by the rise and subsidence in the song, but exz/s- 
canorus is such a slow singer that this estimate can be easily made, one 
wing being rubbed on the other about 115 times in a minute. The 
species devours the heads of the meadow grass (Sfarfima) and it was 
while thus employed that I first observed the female insect. When de- 
scribing the species (Canadian Entomologist, Vol. XIX, p. 56), only the 
males were mentioned, but it is sufficient to add that the ovipositor is 37 
mm. in length. 
Conocephalus dissimilis, Serv. August. 
es robustus, Scudder. August. 
Xiphidium fasciatum, DeGeer. August. 
es brevipenne, Scudder. 
gs vulgare, Harris. July 8th. 
2 concinnum, Burm. July. 
Thyreonotus dorsalis, Burm. 
sé pachymerus, Burm. 
ACRIDID&A. 
Pezotettix scudderi, Uhler. Aug. 
Acridium alutaceum, Harris. Aug. 
ae rubiginosum, Harris. Aug. 
6 americanum, Drury. 
