7 
presence and position of branches, even between the two wings of the same 
insect; so that it is useless to draw conclusions based on these characters, 
from one individual. The 1st Anal and 2nd Anal are not commonly 
divided at the tip in individual wings. The 1st Anal may be entirely absent 
in a few species, such as Ch . americana Hald., and P. cruentata Hald. (only 
a few examined), and is apparently absent at the tip in Evodinus monticola 
Rand. 
It is evident that the wing venation in the Lepturini presents excellent 
group and generic characters and may be utilized, in places, for the identi- 
fication of species. This subject may be dealt with at greater length in a 
later part of this series. 
In the recent instructive papers on the wing venation of North Amer- 
ican Coleoptera, by Graham, Forbes, and Good, the names of Radius, 
Media, and Cubitus were applied to different series of veins. A brief study 
of the relation of the veins to the articulating sclerites in the wings of the 
Coleoptera inclines us towards the interpretation presented by Forbes and 
Good. 
In Plate XI, the articulating sclerites are named according to Snod- 
grass. Judged solely by the attachments, the first three veins, from the 
anterior margin of the wing, are evidently Costa, Subcosta, and Radius, 
since they articulate normally with the first and second Axillaries. The 
Anals, which articulate with the third axillary sclerite, are evidently the 
2nd, 3rd, and 4th, so named in Plate XI. The 1st Anal, which would be 
more aptly named Cubito-anal, should fuse at the base with Cubitus and 
Media and articulate with the Median Plate. It is evidently that named 
“1st A” in the figure. The next vein in front of 1st A should then be 
Cubitus, and it fills all the requirements of that vein in its articulation with 
the Median Plate. The short cross-vein, labelled “arc,” is then probably 
Arculus as indicated by Forbes. The base of the vein considered here as 
1st A is in this section of the Coleoptera suggestively like Arculus, but it 
invariably fuses with the dorsal face of the vein immediately in front, and 
meets, but, in the wings we have studied, never fuses with the vein inter- 
preted as Radius. Media, according to this interpretation, is present only 
in the outer portion of the wing, 
Proepisternal Pits 
The proepisternal area in the genus Typocerus, and in the many other 
species, bears very large punctures, proepisternal pits , varying in number 
in the different species, each pit bearing normally a slender seta. In many 
species the long, flying hairs of the sides of the pronotum arise from these 
pits. In some cases this character could be utilized in distinguishing the 
species. 
Poriferous Areas of the Antenna 
The distal segments of the antennae in the genera Typocerus and 
Strangalina bear impressed poriferous areas with definite margins, usually 
on two or more sides. These areas are usually elongate, in some cases very 
large, particularly in the males, in many cases covering the entire face of 
the segment. The impressed surface is burnished, composed of many 
closely packed punctures, separated by smooth, anastomosing ridges, each 
puncture bearing a minute seta. They are undoubtedly special sense 
organs. 
