Apludkbe of Formosa — 4. 49 



Ceratoglyphma bambusae v. d. Goot. 



p. 237 (1916). 

 Wingless viviparous female 



Almost exactly agrees with the original description, but is slightly smaller. 

 Antennae 4-jointed, hut in some individuals 5-jointed. Thoracic and basal 8 

 abdominal segments each with from 3 to 5 circular wax-pores arranged in a 

 longitudinal row on the side. These pores not transparent in specimens treated 

 with potash. 



Winged viviparous female 



Head, antennae and thorax black. Head broad, with a pair of short, 

 sharply pointed horns which are very slightly shorter than the 2nd antenna! 

 joint, not curved, broadened toward the base and provided with a few short 

 hairs. Eyes large, with small ocular tubercles. Antennae short, the 3rd joint 

 provided with about 22-27 ring-like sonsoria regularly distributed over the whole 

 length; the 4th with 8 similar sensoria; the 5th with 6 or 7 similar ones; the 

 relative length of joints about as follows: 111-55, IV-19, V-20. Rostrum stout, 

 not reaching the middle coxae. Mesothorax large, simple on the dorsum. Fore 

 wings very slightly clouded along the veins: veins stout: the 1st and 2nd obliques 

 united at their bases, stouter than the 3rd; the 3rd obsolete at the base, once 

 branched : stigmatic vein moderately curved ; hind wings with 2 divergent 

 obliques ; booklets 3. Abdomen without wax-pores. Spiracles slightly protuberant. 

 Cornicles almost as in the apterous form. Cauda very short, broadly rounded, 

 not constricted, furnished with many long stiff hairs. Anal plate broad, not 

 bilobed, with many similar hairs. Hind tarsi almost as long as the 5th antenna! 

 joint. 



Body — about 2.0 mm. Fore wing — about 2.5 mm. 



Antenna — about 0.7 mm. 



Host. — Bambusa sp., attacking the lower side of the leaf. 



Distribution. — Formosa : Taihoku. Java. 



Hitherto unrecorded from Formosa. 



Many apterous and some winged viviparous females densely grouping on 

 the basal portions of the leaves were collected by the author on Slav 23, 1925, 

 at Taihoku. 



In the nymphs of the winged form, pro-and metathoraci and abdominal 



