PLATE T. 



A. Head. 



A'. Antenna. 



A=. Ocelli. 



B'. Pronotum. 



B-. Mesonotum. 



B^. Scutellum of ditto. 



B^. Metanotnm and its 

 poBt scutellum. 



B'. Propodeum. 



B". Pecten of anterior tarsi. 



C to C^ Segments of abdo- 

 men. 



D'. Coxaof intermediateleg 



D-. Trochanter ,, 



D-'. Femur ,, 



D-". Tibia „ 



D5. Tarsi „ 



D'. Caloaria ,, 



Fig. 1 . Priocnemis ? . 



Anterior loing. 



1. Costal nerrure. 



2. Post costal ,, 



3. Median „ 

 i. Posterior ,, 



5. Stigma. 



6. Marginal nervure. 



7. Upper basal „ 



8. Lower „ ,, 



9. Cubital 



10. Submarginal nervures. 



11. Ist recurrent. 



12. 2nd 

 Posterior wiivj. 



13. Anterior nervure. 



14. Median ,, 



15. Posterior „ 



I. Upper basal cell. 

 II. Lower „ ,, 



III. Marginal cell. 



IV. Ist submarginal. 

 V. 2nd 



VI. 3rd 

 VII. 1st discoidal. 

 VIII. 3rd 

 IX. 2ad 



X. 1st apical. 

 XI. 2nd „ 



Fig. 2. Priocnemis ? , head and thorax viewed sideways. 



A. Clypens. 



B. Mandible. 



C. Eye. 



D. Antenna. 



E. Pronotum. 



F. Prosternum. 



G. Anterior coxa. 



H. ,, trochanter. 

 I. ,, femur. 



J. Tubercle. 

 K. Mesonotum. 

 L. Mesopleura. 



Fig. 3. 

 Head of Bomb us (late- 

 rally), mandibles 

 removed. 



A. Antenna. 



B. Eye. 



C. Cheek. 



D. Clypeus. 



E. Epipharynx. 

 FF. Cardines. 

 G. Lora. 



H. Submentum. 

 1. Mentum. 

 J. Ligula or lingua. 

 K. Maxilla (stipes). 

 L. ,, (blade or laoinia). 

 MM. ,, palpi. 

 N. Paraglossa. 

 O. Labial palpus. 

 P. Upper Scleriteof hypo- 

 pharynx. 

 Q. Lower „ 



K. Investing mombrane. 



L'. Portion of mesopleura 

 covered by pronotum 

 in some positions. 



M. Mesosternum. 



N. Insertion of anterior 

 wings. 



O. Scutellum. 



P. Intermediate coxa. 



Q. „ trochanter. 



R. „ femur. 



S. Post scutellum of meta- 

 notum. 



Fig. 4. 



Genital armature of 



^ Psithyrus. 



A. Cardo. 

 BB. Stipites. 

 CC. LacinisB. 

 D. Spatba. 

 EB. Sagitta;. 



Fig. 5. 

 Armature of Andrena. 

 Lettering as in Fig. 4. 



Fig. 6. 

 Face of Cerceris. 



AA. Eyes. 



B. Ocelli. 



C. Insertion of Antenna. 



D. Clypeus. 



E. Labrum. 

 FP. Mandibles. 



T. Posterior portion of 



metanotum and meta- 



pleura. 

 U. Metasternum. 

 V. Posterior coxa. 

 W. ,, trochanter. 

 X. ,, femur. 



Y. Insertion of posterior 



wings. 

 Z. Propodeum (or true let 



segment of abdomen). 

 Z'. Spiracle of propodeum. 



Fig. 7. 



Apical segments of 



Halictus S viewed 



sideways. 



4. 4th segment. 



5. 5th 



6, 6. Dorsal & ventral plates 



of 6th. 



7, 7. ,, of 7tli. 



8, 8. „ of 8th. 

 9. Armature. 



Fig. 8. 



Arrangement in front 



leg for cleaning 



antennae. 



A. Tibia. 



B. Metatarsus with semi- 



circular comb. 



C. Modified calcar of tibia 



with sharp razor-like 



