10 



Males inacropterous. Head, antennae, thorax, and lei^s, l)ro\vn, 

 with small lighter spots on frons. A])ex of first antennal joint, 

 l)lack. Lateral margins of pronotum and scutellum, dark. Large, 

 Idack ])lenral spot. Anterior and intermediate tarsi, and apex of 

 til)iae, banded with black. Teginina, hyaline, suffused with brown. 

 Dorsum, white to end of clavus ; black spot on apex of anal vein. 

 Apical cells 4 t(j 8, and along apical veins 1 to 3, dark brown, ci)n- 

 tinuing into distal part of radial, median, and inner discoidal cells: 

 light spot in distal cells 6 to 8. X'eins, dark, finely granulated. 

 Anal tube large, with a pair of straight, somewhat bulbous spines 

 reaching beyond middle of pygophor. Genital styles, broad, Mat- 

 tish, distal cml cut off" s(|uarc, outer edge giving out blunt prong 

 half way down and inner edge small blunt knob. X'entral spines, 

 thin, touching from base to ti]:). 



Female dimor])hic, macropterous forms similar ti) male, except- 

 ing abdomen which is lighter ; brachypterous forms lighter with 

 the spot at apex of anal vein and a spot at end of radial cell. 

 Length, males 3 lum, 5 mm ; females, 5 mm, 6 mm ; l)rachv])terous 

 females 4.5 mm, 4 mm. 



Habitat, Laloki River, British New Guinea, on sugar cane. 



12. aiiiboinciisis sp. nov. ( b'igs. 4 and 5.) 



^lales macro])terous, markings on head and thorax similar to 

 lalokciisis. l)ut lighter, especially the legs. Tegmina, brownish 

 hyaline. Apical cells 4 to 7 and base of 3 dark, also along apical 



