22 



PEOCEEDINGS OF THE NATIONAL, MUSEUM 



VOL. 70 



Plate 2 



Fig. 6. Wings of caementariuni with the veins named according to tlie usual 

 nomenclature. 



a, anal. 



ax, axillary. 



h, basal. 



c, costal. 

 c«, cubital. 



d, discoidal. 

 f, fold. 



if, frenal fold. 

 fh, frenal 



hooks. 

 ni, median, 

 r, radial. 

 7. Wings of caementariuni 



nomenclature. 



rci, 1st recur- 

 rent. 



ret, 2nd recur- 

 rent. 



s, stigma. 



so, subcostal. 



sd, subdiseoi- 

 dal. 



si, sinus. 



tc, transverse 

 cubital. 



tci, 1st trans- 

 verse cubi- 

 tal. 



tCi, 2nd trans- 

 verse cubi- 

 tal. 



tC3, 3rd trans- 

 verse cubi- 

 tal. 



tm, transverse 

 median. 



with the cells named according to the usual 



a, anal. 



api, first apical. 



api, second apical. 



c, costal. 



cu, cubital. 



di, second discoidal. 



ds, third discoidal. 



m, median. 



r, radial. 



sm, submedian. 



cui, first cubital. 

 CU2, second cubital. 

 CU3, third cubital. 

 Gtu, fourth cubital. 

 di first discoidal. 



8. Tip of anterior tibia and base of first tarsal segment of caementariuni 



showing cleaning apparatus. 



9. Tip of posterior tibia and base of first tarsal segment of caementarium 



showing cleaning apparatus. 



Plate 3 



Fig. 10. Clypeus of male caementarium. 



11. ClyiJeus of female caementarium. 



12. Clypeus of male fasciatum. 



13. Antenna of female caementarium. 



ft, bulb. p, pedicel. 



fit, filament. s, scape. 



14. Mandible of male caementarium. 



15. Mandible of female caementarium. 



16. Ventral view of genitalia of male caementarium. 



da, clasper. 

 CO., basal ring. 

 sa, sagitta. 



u, uncus. 

 vo, volsella. 



Plate 4 



Fig. 17. Uncus of caementarium. 



18. Volsellae and sagittae of caementarium. 



19. "Volsellae and sagittae of fistulare. 



20. Uncus of fistulare. 



21. Uncus of fasciatum. 



22. Volsellae and sagittae of fasciatum. 



o 



