72 Mr. W. L. Distant on does not in any way affect the coloration of tlie wings and can scarcely be compared to the patches on the lolaus group. E. mirabilis seems to open up the question very forcibly as to whether distinctive genera can be made on the absence or presence of these " sexual marks." It appears to agree in venation exactly with Epamera. X. — On some undescrihed Rhynchota, By W. L. Distant. Fam. PentatomidaB. A CANTROSOMATiyjl. Sastragala smaragdina, sp. n. Very pale greenish ; central lobe and margins of head, the transverse foveje near anterior margin of pronotum, coriuni, legs abovCj and abdominal margins more olivaceous green ; lateral angles of the pronotum spinously produced, black, and from a line drawn between them to base the surface is thickly coarsely punctate, the punctures castaneous ; scutellum with a large discal, levigate, ochraceous spot, remaining surface coarsely darkly punctate, apex levigate ; corium with a black spot at inner angle and a lunate black fascia near outer apical margin ; connexivum pale greenish, with the extreme apices of the segmental spines black; posterior margin of sixth segment black. Closely allied in structure and markings to S. heterosjnla, Walk., but with the lateral pronotal spines much more slender and acute ; abdominal spine also much more acute and with its apex more removed from the sternal surface. Long. 11 ; exp. pronot. angl. 8 millim. Hah, Ceylon : Kandy {E. E. Greeyi). Fam. Lygaeidae. Aphakin^. Altomarus, gen. nov. Elongate ; head long, anteocular portion about as long as postocular portion, angularly produced in front of eyes; first joint of antennas about reaching the apex of head; rostrum long, about reaching the intermediate cox£e, first joint much shorter than head, just passing the region of the eyes; pronotum with
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