1863.] 
181 
Synopsis, should be corrected, for there is “a large rounded hasal white 
spot,” which is wider than the band of the wings. This spot is easily 
seen, and is the easiest character by which to distinguish the species! 
The inferior appendage S is elongate, narrower at tip, and of a pale 
brown color.— % 9 >iew York : S Maryland and Illinois (from Mr. 
Uhler.) 9 Pennsylvania. Length of front wing % 24—28 mill 9 34 
mill. \_See note 26.] 
Chaultodes serrtcornis Say= Ch. maculatus Hag. Synopsis. The 
% has serrate antennae, and the inferior appendage is of a shining black 
at tip, and less elongated and wider than in the preceding. Both % 
and 9 have the base of their wings black.— % Savannah (type) Burm. 
- % North America.— 9 New York (June), Connecticut.—A % from Mr. 
Uhler, labelled Maryland and Illinois, has the band of the front wings 
a little wider and the apical spots of the hind wings almost united into 
a large, irregular, oval spot. Two S from Massachusetts (Uhler) and 
New York (June) are a little smaller and more highly colored. A 
very highly colored and large % (labelled Maryland and Ill., June 8, 
Uhler) has the band on the front wings wider. It has foliate antennae like 
C. lunatus but cemented on with gum and as it seems erroneously.— 
Length front wing % 21—26 mill. I may add that Ch. fasciatm 
Walker (Australia) seemed to me identical with Ch. serricornis Say. 
Possibly Walker’s habitat is erroneous. 
Chauliodes rastricornis, Ramb. % 9 received from Mr. Walsh, 
a superb pair. I had before received a 9 from Illinois (Uhler ) the 
% I did not previously know. Ch. pectinicorms 9 differs in having- 
pectinate antennaD. I am very curious to see the larva of Chauliodes. 
[Nee note 27.] 
CoRYDALis CORNUTUS, Linn. The larva po.ssesses both branchiae 
and spiracles, like that of Sialis. I do not think that the [lateral] 
filamentous appendages are connected with respiration; the little 
sponges at the base of the filaments and a little behind them are the 
true branchiae. It is a very curious, and up to this day a unique fact, 
that the larva of an Odonate from Ceylon (^Euphsea splendens) possesses 
similar filaments. The reason that the larva of Corydalis has both 
branchiae and spiracles is, that they live, like Sialis, some weeks out 
of the water before their transformation. Some extraordinary MS. 
statements from Mr. Walsh, as to these larvae “ tumbling down chim- 
