[ Vol. 10, Nos. 3-4. 
Muttkowski, New Species of Dragonflies. 
167 
Gomphus whedoni sp. nov. 
As this species resembles Gomphus cornutus very strongly, I 
reproduce Tough’s description of the latter, especially as the publi¬ 
cation in which it originally appeared (Memoirs Chicago Ent. 
Soc.) was so short lived and is not available in many libraries. 
Gomphus cornutus Tough. 
“Length, $, 55—57 mm.; abdomen, 40—42 mm.; hind wing, 
32—33 mm. 
“Yellowish green, with black and brown markings. Face and 
occiput yellowish green, eyes posteriorly black above, yellowish below, 
occiput distinctly convex, notched in center and fringed with black 
hairs, vertex and antennae black. Prothorax black, with a geminate 
spot in center and a patch on each side yellowish. Thorax yellowish 
green, except a narrow band, indistinct or absent anteriorly, on each 
side of the mid-dorsal carina, also except humeral and antehumeral 
hands, and margins of first and second lateral sutures, all of which 
are brown. Legs black, front femora yellowish green below. Wings 
hyaline, with veins black, pterostigma yellowish, and costa yellowish 
green. Abdomen of uniform) thickness, black, a dorsal stripe or spot 
on segments 1—8, small and basal on 9, and a small quadranular spot 
on 10, yellowish; dorsum of 9 entirely black. 
“Appendages,^ $, see., Superiors, dull yellowish; seen from 
above, internal branches produced inward and backward until they 
meet, acute and spinose at tip; external branches short, rather broad, 
and tipped with a blunt spine. Inferior appendages, seen from above, 
slightly longer than superiors, spreading, the distance from tip to tip 
of outer extremities being more than twice the width of the tenth ab¬ 
dominal segment at base. From side view the internal branches of 
superiors are seen to bear la, conical tooth about midway between base 
and apex; the inferior curving upward gradually and each branch 
bearing a curved spine at tip.” 
A description of Gomphus whedoni n. sp. would be practically 
identical with that just cited for G. cornutus. The only color 
difference that can be mentioned is that the hastate dorsal marks 
on the abdominal segments are wider in G. zvhedoni. 
As regards the genitalia, the difference is trifling as can be 
seen from comparison of the figures. The appendages, however, 
are so strongly different that I do not hesitate to name this species 
as new and distinct by itself. Originally I had supposed the 
species to be a variety of G. cornutus, at best a subspecies; later 
