4 



M. MAT8UMURA.. 



many of them are found in one rolled leaf, at first producing many yellowish spots, 

 but soon all parts turn yellow and consequently they die off. The second brood comes 

 in August, just when the young ears of rice are coming out of the sheath. They 

 are deeply seated within the earlets, sucking the juice of the flowers and consequently 

 that of the ovules. Sometimes several hundreds of them are found in one ear, sudden 

 jarring only bringing a few of them to the ground. It is very brisk in its movements, 

 both in walking and flying, but cannot leap like other thripid insects. The larva) are 

 reddish in color, as those of other phlocothripida are. 



EXPLANATION OF PLATE I. 



Phlœothrips oryzre, n. sp. (1 — 11). 



1. imago, magnified 60. 



2. £ „ „ 56. 



3. Head and its conical beak, magnified 63. 



1 Mouth beak, 2 Maxillary palpi, 3 Labial palpi. 



4. Tip of abdomen showing tubular sheath (e/), magnified 60. 



5. Antenna, magnified 26(1. 



6. Basal part of anterior wing, magnified Ô32. 



1 Radial vein, 2 Basal appendix, 3 Bristles, 4 Junction part, 5 Ante-costal area. 



7. Posterior wing, magnified CO. 



8. Anterior „ „ „ 



9. Apical part of anterior wing, magnified 502 



7 fringes in two rows. 



10. Posterior leg, magnified 266. 



1, 2, 3 1st, 2nd and 3rd tarsi respectively. 



11. Anterior leg, magnified 266. 



1, 2 1st and 2nd tarsi respectively. 



Phlocotbrips japonica, n. sp. (12 — 18\ 



12. <j) imago, magnified 45 (0) ocelli. 



13. Head and its beak, magnified 48. 



1 Mouth beak, 2 Maxillary palpi, 3 Labial palpi. 



14. Tip of abdomen showing tubular sheath (e'), magnified 48. 



15. Antenna, magnified 266. 



16. Basal part of anterior w ing, magnified 532. 



1 Radial vein, 2 Basal appendix, 3 Bristles, 4 Junction pirt, 5 Ante costal area. 



17. Posterior wing, magnified 45. 



18. Anterior „ „ „ 



