TWO COLLECTIONS OF FULGOROIDEA FROM SUMATRA 



By F. Muir 

 Of the Hawaiian Sugar Planters' Experiment Station, Honolulu 



ONE PLATE 



Very little is known about the fulgorids of Sumatra, especially 

 the small species, so the two small collections, one made by 

 Mr. E. Jacobson and the other by Mr. J. B. Corporaal, are of 

 interest. Besides the species mentioned, there are eight species 

 of Cixiidae which I am retaining- for the present. The types are 

 deposited in the Hawaiian Sugar Planters' Experiment Station 

 collection in Honolulu. 



ACHILID^E 

 Rhotala depressifrons sp. nov. 



This species is similar in structure to R. gravelyi Muir from 

 India, with the following exceptions. The vertex is narrower 

 and longer, the base angularly emarginate with a fine carina, 

 sides with carina rounded off at apex. Base of face smooth 

 and shining, the lateral carina? at base thickened, becoming 

 slenderer to apex, having a triangular depression over the 

 greater part of the face, a slight trace of a median carina on 

 apical third. There is no trace of a suture dividing the pos- 

 terior angle of the mesonotum and so it cannot be placed in 

 the Tropiduchidse, and the whole build and characters of the 

 insect are achilid. 



Female. — Length, 10 millimeters; tegmen, 11. Dark brown, 

 with small lighter brown marks; legs with slightly lighter 

 bands. Tegmina brown, with slightly dark brown mottlings, 

 veins darker; wings light brown, with darker veins. 



Pregenital plate large, short at sides, hind margin gradually 

 produced to middle third which is steeply produced into a long, 

 narrow process slightly bilobed at apex, with the sides curved 

 dorsad, this middle process being as long as basal portion of 

 pregenital plate; genital styles long, narrow, the anterior styles 

 lying in the groove formed by the produced pregenital plate, 

 the posterior pair straight, narrow, apex rounded, reaching 

 nearly to apex of median process of pregenital plate. Anal 

 segment small, longer than broad, rounded at apex. 



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