THE CANADIAN ENTOMOLOGIST. 17 
margin rounded from the base to the apex ; apex angled. Wings about 
as long as the elytra. Ovipositor about as long as the body, nearly 
straight, lanceolate at the apex ; cerci of moderate length, swollen, slightly 
curved, with a slender, pointed apex. The abdomen of the male has, at 
the apex of the last ventral segment, the usual cylindrical appendages ; the 
super-anal plate bilobed ; no cerci apparent in the male I have seen. 
Posterior lateral angles of the mesosternum furnished with a prominent 
spine. External carinae of the femora furnished with strong spines ; also 
a sharp spine each side of the apex of each, projecting forward. An- 
terior tibize without spines in front ; middle with two rows above, two in 
each row ; the posterior with two rows beneath. Anterior coxæ furnished 
externally with a strong curved spine. Antenne very long and slender. 
The legs of the male are quite hairy. 
Colour. Body and elytra a uniform bright pea-green : underside and 
edges of the frontal cone a bright yellow ; labrum and clypeus yellow ; 
mandibles deep piceous black, except the upper external angles, which 
are green. Ovipositor dull yellow, slightly striped with fuscous near the 
apex. ‘Tarsi pale fuscous. Eyes brown. 
Dimensions. §. Length from base of cone to top of abdomen, 1.5 in.; 
cone .31 in. ; elytra 1.26 in. ; posterior femora .83 in.; posterior tibiæ 
-62 i.; Ovipositor 1.5 in.  { Length 1.25 in.; cone.25 in. ; elytra 11 ; 
posterior femora .68 in. ; posterior tibiæ .65 in. 
As before remarked, this species has evidently been introduced with 
plants brought from some tropical section. The only plants received 
at the Department last fall or winter from the tropics were from Central 
America and Cayenne. 
If the mesosternal spines, which are very prominent, do not distin- 
guish it from other species, then the very interesting inquiry arises, has it 
been produced from the eggs of some known species, the variations 
_ between the perfect insects having been produced by the different circum- 
stances under which they have grown to maturity ? 
50 far as I am aware, the following list embraces all the species hith- 
erto described :— 
C. cornuta, Serv.—Para. C. megacephala, Burm.—Jole St. 
C. mexicana, Sauss.— Mexico. Johanna. 
C. lucifera, Burm.—Bahia. C. gracilis, Scudd.—Napo, or Mara- 
C. flavo-scripta, Walk.—Venezucla. non. 
C. longicauda, Serv.—Cayenne. C. cuspidata, Haan.— Brazil. 
