Messrs. T. D. A. Cockerell and W. Porter on Bees. 403 



Fig. 5. Mtcropai-marion Ausfeni, Simr. Dorsal view, X 2. 

 Fiff. 6. Ditto. Portion of the mantle, showing the wart-like protu- 

 berances, X 6. 

 Ftff. 7. Ditto. Generative organs, dorsal view, x 3. 

 Fig. 8. Ditto. The same viewed from the ventral side, x 3. 

 Fi<f. 9. Ditto. Horizontal section through the penis. 

 Fig. 10. Ditto. Dart. 



Plate VIII. 



Fig. 11. Micropannarion jaranica, sp. n. View from the right side, X 2. 



Fig. Y2. Ditto. View from the left side, X 2. 



Fig. 13. Ditto. Dorsal view, X 2. 



Fig. 14. Ditto. Dorsal view of the shell, X 2. 



Fig. 15. Ditto. Ventral view of the shell, X 2. 



Fig. 16. Ditto. Generative organs, dorsal view, x 5. 



Fig. 17. Ditto. The same, viewed from the ventral side, X 5. 



Fig. 18. Ditto. Horizontal section through the penis. 



Fig. 19. Ditto. Dart. 



Reference Letters. 



d.s. Dart-sac. r.jn. Retractor muscle. 

 f.ov. Free oviduct. r.s. Receptaculum seminia. 



Of. Oviduct. V. Vestibule. 



p. Penis. v.d. Vas deferens. 



pr. Prostate. vg. Vagina. 



XLVIII. — Contributions from the New Mexico Biological 

 Station. — VII. Observations on Bees., with Descriptions of 

 new Genera and Species. By T. D, A. Cockerell and 



WiLMATTE POETER. 



Megachile, Latr. 



Cresson, Saunders, and Bingham state that the maxillary 

 palpi are 2-jointed, but Ashmead calls them 4-jointed. We 

 have examined a great many species, including two from 

 Europe, and find in every case three joints to the maxillary 

 palpi ! 



Apis, Linn^. 



The maxillary palpi of Ajns are said by authors to be 

 1-jointed, but in the honey-bee we find two joitits fairly well 

 differentiated. 



BOMBUS, Fabr. 



Various species examined show 2-jointed maxillary palpi, 

 the basal joint stout, the other slender and cylindrical. 

 B. Kincaidii, Ckll., has the maxillary palpi 3-jointed, with 

 two cylindrical joints instead of one. 



