266 
of pygmaea is based upon a lectotype se- 
lected by them after a study of two of 
Burmeister’s cotypes in the Berlin Zoolog- 
ical Museum of Germany, and, even 
though material identified by Needham & 
Sian 
See 
SuUPRA-ANAL 
PROCESS 
CRIGHT) 
AND 
SHEATH 
CEEEalD 
a5 
Y Seas 
Fig. 33.— 
Allocapnia 
pygmaea. 
SUBGENITAL PLATE 
Claassen as pygmaea may include other 
related species (such as the new species 
formerly going under the name pygmaea 
in Illinois), their selection of a lectotype 
from the mixed cotypic series has definitely 
established the use of the name pygmaea 
to the species here under consideration. 
In the U. S. National Museum are speci- 
mens of Allocapnia which undoubtedly repre- 
sent typic specimens of “Perla nivicola Fitch.” 
These specimens and notes on their identity 
are as follows: 
1¢, Fitch No. 7,711 = Allocapnia incisura 
Claassen (with Fitch label of P. mzvicola). 
12, Fitch No. 7,712 = Allocapnia incisura 
Claassen. 
14, Fitch No. 4,232 == Allocapnia (in such 
poor condition that specific identification is 
impossible). 
19, Fitch No. 4,271 = Allocapnia (in such 
poor condition that specific identification is 
impossible). 
1 (sex?), Fitch No. 10,058 == Allocapnia 
(in such poor condition that specific identifi- 
cation is impossible). 
12, Fitch No. 10,060 = Capnia opis (New- 
man) (without Fitch label of identification). 
In the Museum of Comparative Zoology 
are the following additional typic specimens 
Intinoris NaturaL History SURVEY BULLETIN 
Vol. 22, Arte 
(M.C.Z. 10,114) of “Perla nivicola Fitch,” 
which have “Hagen” labels and undoubtedly 
are specimens sent to Hagen by Fitch: 
124, Fitch No. 4,224 = Allocapnia pygmaca 
(Burmeister). 
19, Fitch No. 4,234 = Allocapnia pygmaea 
(Burmeister). 
19, Fitch No. 4,235 = Allocapnia pygmaea 
(Burmeister). 
For nomenclatorial reasons it is highly 
desirable to select a lectotype from this 
mixed typic series of nivicola, and I now 
so designate the male specimen, Fitch No, 
4.224, in the Museum of Comparative 
Zoology. 
Since this particular leectotypie speci- 
men is of the same species as pygmaea 
(Burmeister) in the sense of Needham & 
Claassen (1925), who studied the types 
of pygmaea now in the Berlin Zoological 
Museum, it follows that nivicola falls in 
synonymy to pygmaea. ‘The lectotype of 
nivicola has been selected from the speci- 
mens in the Museum of Comparative Zo- 
ology collections because the series of 
Fitch specimens there are unmixed as to 
species, and all have early Fitch numbers. 
Furthermore, if any of the Fitch spect- 
mens in the U. S. National Museum were 
selected, the nomenclatorial changes in- 
volved would be greater. Although Banks 
(1907) listed nivicola as a synonym of 
pygmaea, the name nivicola was complete- 
ly omitted by Needham & Claassen in 
1925 and again overlooked by Claassen 
(1928) when a list of names omitted from 
the earlier monographic treatise was pub- 
lished. In Claassen’s (1940) recently 
posthumously published Catalogue, nivi- 
cola is listed as a synonym of pygmaed, 
and the present lectotypic designation 
definitely establishes this assignment. 
It may seem surprising to some that 
Fitch would include under one species 
at least three species of capniids. ‘That 
he did so is not strange, however, consid- 
ering that in general capnids present 4 
very homogeneous appearing group and 
that the characters now used for recog- 
nizing the various species of these insects 
were not known or used in 1847. Further- 
more, it is a very common experience In 
collecting winter stoneflies to collect three | 
or four species of capniids at the same 
time and place, which is evidently what 
Fitch did. 
Recognizing torontonensis as a synonym) 
of pygmaea, as I now do, and considering 
