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. 



