ILLUSTRATIONS 



TEXT FIGURES 

 (Drawings by the author) 



Fig. 1. Flower parts of Ficus nota. A, young gall flower at time of recep- 

 tion of egg, with funnel-shaped style with undivided or un- 

 ruptured perianth (1.5 by 0.5 mm.) ; B, nearly mature gall 

 flower, long pedicelled form, with ruptured perianth (5 by 1.25 

 mm.) ; C, nearly mature fertile female flower, with normal 

 stigma, long pedicelled form (5 by 1 mm.) ; D and E, mature 

 monandrous male flower with unruptured perianth (3 by 1 mm.) ; 

 F, the freed stamen dehiscing by 2 slits; G, cross section of un- 

 opened male flower; H, pollen grains, averaging about 7 by 12 

 microns. 



2. Female of Blastophaga nota. The vestiture of the wings, consist- 



ing of very numerous minute bristles, is omitted. Note the 

 remarkable projections of prothoracic spiracles. 



3. Some anatomical details of fig insects. A, head of Philotrypesis 



similis (0.6 by 0.6 mm.) ; B, head of Philotrypesis collaris, the 

 spined extensions shown at angles of occiput being below (size 

 of head, 0.95 by 1 mm.) ; C, head of Philotrypesis ashmeadii 

 (0.55 by 0.7 mm.) ; D, hind tibia and tarsus of Blastophaga nota; 

 E, fore tibia and tarsus of Blastophaga nota; F, hind tibia and 

 tarsus of Sycoryctes philippinensis. 



4. Showing the very peculiar pustular organs in the clavate tip of 



the stigmal vein in the female wing; A, Sycophaga nota; B, 

 Sycoryctes philippinensis; C, Agaonella larvalis; D, Blastophaga 

 nota; E, Philotrypesis similis; F, P. collaris; G, P. ashmeadii. 



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