t 3 ' 4 Baker: Malayan Jassoidea 3gj 



Vertex and pronotum commonly covered with a white waxy 

 bloom. Length, female, 7 millimeters; male, 6.5. 



Length of face (Plate 1, fig. 8, c) nearly a third greater 

 than width across eyes. Face as in Signoretia malaya but 

 clypeus narrower, its basal suture more strongly curved and 

 facial ridges extended to apex. The supraocular carina con- 

 tinuous over the crown of the head some distance from and 

 subparallel to subocellar carina, the latter bordering crown in 

 front as a sharp porrect margin. The two concavities of vertex 

 slope gradually caudad, deeper at inner basal angles next the 

 median carina, which is strong and complete. Ocellus distant 

 from eyes about its own diameter. Length of vertex a little 

 more than three-fourths width between eyes and half again 

 longer than anterolateral margin of pronotum. Pronotum 

 (Plate 1, fig. 8, a) about twice length of vertex; the antero- 

 lateral margin into width a little more than two and a half 

 times; marginal carina and pleura as in Signoretia malaya; 

 thimble pitting large but shallow and inconspicuous; two sub- 

 median carinaa corresponding to the two rudiments found in 

 Signoretia malaya pass from fore to hind margin, diverging 

 somewhat caudad, and are high, sharp, and strong throughout. 

 Venation of corium and membrane as in Signoretia malaya, but 

 pitting along veins very inconspicuous and apically entirely 

 lacking; conspicuous pitting occurs only at base of subcostal 

 area and along claval vein at base; basal cell of clavus very 

 large and with two oblique cross veins. 



Straits Settlements, Singapore and Penang {Baker) . This 

 species was found to be abundant in both of these regions, and 

 a slightly different geographical form of it is common at San- 

 dakan, Borneo. A similar form is to be expected in Tawitawi 

 and elsewhere in the Philippines since the genus ranges to 

 northern Luzon. This species is referred to P. gratiosa Melichar, 

 described from Ceylon, and recorded by Distant " from Tenas- 

 serim, but with some doubt, since the figures of Distant and 

 Melichar differ widely in details, though the present form is 

 likely to prove the same, at least, as that from Tenasserim. 

 Preta luzonensis sp. nov. Plate 1, fig. 9. 



Pale ochraceous (more or less virescent in life) ; median keel 

 and lateral ridges of face slightly darkened; tegmina trans- 



" Fauna Brit. India, Rhynch. 4 (1908) 234. 



