EXPLANATION OF ILLUSTRATIONS. 



Plate XVI— 



Fig. I. LaChnus pyri. Buck. n. sp. a, half-grown larva ; b, winged 

 female, March brood j c, antenna j d, winged female, June brood j 

 em Apterous adult, June brood (all enlarged). 



Plaie XVII— 



Fig. I. Chaitophorus maculatus, Buck. n. sp. «, Apterous female ; 

 b, head ; c, wings; d, nectary ; e, hind femur (all enlarged). 



„ 2. Rhizobius jujube. Buck. n. sp. a. Apterous adult ; b, young 

 insect j c, part of the head and antenna ; d, Tarsus with single claw. 



Plate XVIII— 



Fig. I. ExoRiSTA HETERUsiiE, Coquillett n. sp. a, fly ; 6 and c, front and 

 side views of the face ; d, puparium. 



„ 2. HeteRusia cingala, Moore, a and b, moths ^ and $ ; c, larva ; 

 a, cocoon. 



