NEUROPTERA. 349 
humeral suture, and is continued along the upper edges of mesepimera and metepisterna to the second 
lateral suture, confluent with a superior humeral spot, a line on the upper half of the first lateral suture 
and a shorter line on the upper end of the second lateral suture; a spot on the mesinfraepisternum, 
connected with one on the lower end of the mesepimeron ; two on the metepimeron, both slightly above 
the latero-ventral carina, the anterior larger than the posterior ; less distinct marks at the bases of the 
legs and a curved stripe on each side of the metasternum. 
Abdomen black, the following pale blue or yellow: segment 1 except on the basal dorsal area, a stripe on 
each side of 2 for its whole length, a short transverse basal mark on each side of 3. © 
Superior appendages subequal in length to segment 9, with the usual median process directed inferiorly and 
internally. 
Legs blackish, femora inferiorly pale blue. 
Wings slightly yellowish, stigma blackish, surmounting 4 or 5 cells, or 3 and parts of two others, its posterior 
edge five times as Jong as its distal edge. Front wings with 27-32 antecubitals, the thicker one being 
the 10th or 12th; 25-31 postcubitals. Hind wings with 21-26 antecubitals, the thicker one being the 
8th or 10th; 25-28 postcubitals. 
©. Unknown to me. 
Dimensions, § .—Abdomen 34-35 mm., hind wing 27-27°5; distance from base to nodus, front wing, 12, 
from nodus to proximal end of stigma 13, from base to nodus, hind wing, 11, from nodus to proximal 
end of stigma 13; costal edge of stigma, front wing, 2 mm, 
Hab. Costa Rica, Carrillo (Underwood: 2 ¢ ). 
Differs from C. modesta, Selys, by its thoracic colour-pattern and longer pterostigma. 
The specific name proposed is slightly altered from that of an Indian tribe. 
4, Cora skinneri, sp. n. 
Head black, a rounded orange spot between the median ocellus and each antenna; the following pale (yellow 
or blue ?): gens, a small spot on each side of the nasus, labrum (except for its margins and a median 
line traversing it which are black), mentum, and submentum, 
Prothorax as in the preceding species. Thoracic dorsum predominantly black, each side a pale humeral stripe, 
_ nearly half as wide at its lower end as the black mid-dorsal, but narrower above where it does not reach 
the antealar sinus; mesepimeron black, except for that part of its anterior margin which is occupied by 
the pale humeral stripe; metapleuron chiefly yellow, but its upper and lower margins and a short line 
on the upper end of the second lateral suture black. Pectus pale yellowish, some indistinct marks at 
the bases of the legs and a curved stripe on each side of the metasternum blackish. 
Abdomen black, the following pale yellow or blue: segment 1 except its basal dorsal area, a narrow longitudinal 
stripe on each side of 2 from base three-fourths way to apex, a basal dot on each side of 3 and a similar 
but smaller dot on each side of 4. Appendages similar to those of C. chirripa. Legs blackish. 
Wings faintly yellowish; stigma blackish surmounting four cells and parts of one or two others, its posterior 
edge 4-54 times as long as its distal edge. Front wings with 37-39 antecubitals, the thicker one the 
15th ; 37-89 postcubitals. Hind wings with 29 antecubitals, the thicker one the 12th or 13th; 35-38 
postcubitals, 
@. Unknown to me. 
Dimensions, ¢6 .—Abdomen 39, hind wing 33°5; distance from base to nodus, front wing, 15, from nodus to 
proximal end of stigma 16-5; from base to nodus, hind wing, 13, from nodus to proximal end of stigma 
16; costal edge of stigma, front wing, 2 mm. 
Hab. Costa Rica, Tablazo (Biolley: 1 ¢ ). 
Differs from C. munda by its thoracic colour-pattern, from C. inca by the shape of 
the pterostigma, &c. 
The specific name is in honour of Dr. Henry Skinner, to whom both entomology 
and myself are so much indebted for aid and encouragement. 
BIOL. CENTR.-AMER., Neuropt., July 1907. 9g 
