80 PROF. P, B. UULEE ENUMERATION OF THE [JaU. 15, 



times overlappiug the adjoiniug areole, the interval between this 

 .stripe and the clavus, including the subapical area, smoke-brown ; 

 the apex paler, with the veins darker. Wings almost transparent, 

 with the veins pale brown. Abdomen black, the segments edged and 

 bordered exteriorly with greenish white. Inferior genital segment 

 of the male triangular and swollen. 



Length to tip of wing-covers 2-2| mm. ; width of pronotum 

 1-lj mm. 



Twelve specimens were taken at two or three places on the 

 island. 



DeLTOCEPHALUS ACrillNATUS, sp. uov. 



Pale greenish, moderately robust. Head short, subconical, with 

 the sides curved ; vertex a little longer than wide, marked with two 

 deltoid black spots next the tip, near the base are two very minute 

 black dots : eyes long and very oblique ; front oblique, convex, 

 crossed by two series of slender, curved, bro\^Ti lines, the lower 

 margin, a spot on the tylus, and some specks on the cheeks also 

 brown. Pronotum short, green, and a little rugose, yellowish in 

 front, the submargin with two black dots, each side of which are 

 some minute specks, the anterior margin moderately curved, the 

 posterior margin subtruucate, and the lateral margins broadly 

 oblique and ciu'ved. The scutellum a little scabrous, impressed in 

 the middle, pale greenish, with a slender point at the apex. Wing- 

 covers pale greenish yellow, translucent, narrow, moderately 

 curved : tlje veins prominent, mostly straight, with long areoles, 

 the costal areole and the adjoining one, besides the clavus, remotely 

 j)unctate. The legs pale dull yello\^'ish, with the bases of the 

 tibial spines, tip of tibife, and bands upon the tarsi brown. Sternum 

 black, the pleiu-al segments more or less margined and marked with 

 pale green. The venter broadly blaclv at base, this colour narroA^er 

 and interrupted by green on the postei'ior segments; tergum 

 covered by black at base, with the segments veiy slenderly edged 

 with pale yello\^% the apical half pale straw-yellow, dotted with 

 black on the middle and submargiual lines. 



Length to tip of wing-covers 3-31 mm. ; width of pronotum 

 1 mm. 



A few specimens, females, were brought from the island by 

 Mr. Herbert H. Smith. The wings in this species are milk-white. 



DELTOCEPHALUS COLOKUS, Sp. nov. 



Similar to the preceding species in form, but with a blunter 

 head, marked with two black dots placed far apart, and usually 

 with two minute dots on the tip. Colour smoky yellowish or dull 

 straw-yellow. Vertex hardly triangular, the sides bluntly curved .: 

 front long, pale testaceous, marked with a dagger-shaped middle 

 line which extends from the tylus to the summit of the front, each 

 side of this is a series of about eight narrow black bands, of which 

 the upper is broader and arcuated ; the exterior margin, edge of 

 the middle line, and sutures also black, or brown ; the cheeks 



