NEW INDIAN HOMOPTERA. IJy F. MuiRj Hawaiian Sugar Planters' Experiment Station, Honolulu, T . H . The material dealt with in this paper belongs to the Zoological Survey of India. In a former paper the Derbidae were dealt with. This paper deals with the Cixiidae, Delphacidae, and Achilidae. Sixteen of the twenty-six species recorded are considered as new, which indicates the large amount of work still to be done in these families. The types have been returned to the Zoological Survey of India, and paratypes placed in the H.S.P.A. Experiment Station collec-tion, Honolulu. Measurements are from apex of vertex to anus and from base to apex of one tegmen. Family CIXIIDAE. Cixius gravelyi, sp. nov. ' Congeneric with C. nervosa but the base of vertex more deeply and angularly emarginate. Male. Length 35 mm. ; tegmen 47 mm. Black ; lateral carinae of face and vertex and hind margin of prouotum and the legs light brown, basal portion of abdomen yellow, apical portion brown. Tegmina hyaline, base brown, a broad light brown or yellowish band across from middle of clavus to middle of costa ; stigma brown ; fuscous over apical cells, darker in apical radial cells; cross-veins infuscate ; tubercles small, dark, bearing black macrotrichia. Wings hyaline with brown veins. Lateral margins of pygofer roundly produced beside anal seg-ment, medio-ventral process angular. Anal segment large, longer than wide, anus about one-fourth from apex, apex rounded and turned ventrad. Genital styles long, narrow, apex acute, the middle of the inner margin produced into an angle. Aedeagus large, complex. Described from one male from the Darjiling District, East Himala3-as, India, elevation 4000 feet (F. H. Gravely, June, 1916). Genus Oliarus Stal. In describing the genus Mnemosyne Stal states that the meso-notal carinae are obsolete, but he placed M. philippina in the genus although it has five carinae. Fowler in describing the genus says, " the three keels on the scutellum more or less obsolete." Distant places Oliarus punctipennis and M. cingalensis in Mnemo-syne although they have five mesonotal carinae.
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