78 Mr. AV. L. Distant on Homoptcra. 



Ttjlana rudis, sp. n. 

 nidis, Walk., MS. 



Very pale brownish ochraceous ; eyes gi'eyish white ; 

 vertex and prouotum paler than the mesonotum and more or 

 less speckled with pale brown ; mesonotum with about six 

 pale longitudinal ridges; pronotum with three somewhat 

 obscure ridges, the central ridge straight, the two others 

 oblique ; body beneath pale ochraceous ; face and legs thickly, 

 abdomen more sparingly speckled with brownish ; tegmina 

 obscure greyish, darker on basal area, with the veins promi- 

 nent and slightly tinted with reddish, the costal and apical 

 margins finely spotted with brownish ; face tricarinate, its 

 base moderately concave ; pronotum roundly produced ante- 

 riorly between the posterior area of the eyes, its basal margin 

 a little rounded ; tegmina widened on posterior half, its 

 apical margin broadly subtruncate, its costal margin oblique 

 to a little before middle and then nearly straight and slightly 

 sinuate to apex, posterior claval margin gibbously rounded 

 near base. 



Long. 5^ mm. 



Hab. Malay Archipelago; Gilolo [Wallace, Brit. Mus.). 



Paratylana, gen. nov. 



Allied to Tylana, but with the vertex and face much 

 narrower, the latter elongate, much longer than wide, 

 slightly widened before clypeus, the lateral margins strongly 

 ridged, and with a sublateral longitudinal ridge on each side 

 which are more or less united near base and before clypeus; 

 other characters generally as in Tylana. 



Type, P. herbicla, Walk. 



The Tylana laterata, Melich., will be included in this 

 genus. 



Paratylana herbicla. 



Issus herbidtts, Walk. Journ. Linn. Soc. Lond., Zool. x. p. 121 (1868). 

 Tylana herbida, Melich. (part.) Mon. Issiden (Homopt.), p. 206 (1906). 



Hab. Mysol. 



Paratylana biplaga. 



Issus hiplaga, Walk. Journ. Linn. Soc. Loud., Zool. x. p. 122 (1868). 

 Tylana herbida, Melich. (part.) Mon. Issiden (Homopt.), p. 206 (1906). 

 Issus semifascia, Walk., MS. 



Hab. Mortv and Aru. 



