260 ENTOMOLOGICAL NEWS. [June, 'l2 



nies of these bees that the new species of Meloid beetle, Hornia 

 gigantca (Wellman) was found.* In noting the devastation of 

 this parasite upon one colony of the bees it was evident that the 

 colony was at one time apparently a large and prosperous one 

 of four or five hundred individual insects ; but now presented 

 a delapidated appearance, for where dozens of flying bees 

 should be expected, only an occasional specimen was seen. An 

 examination of the cells disclosed many parasites. 



EXPLANATION OF PLATES. 

 PLATE XIV. 



All about natural size. 



Fig. i. Horizontal section through tunnel of Melitoma grisella. 



Fig. 2. Dorsal view of clay arch over entrance to tunnel of Meli- 

 toma grisella. 



Fig. 3. Nest of Dianthidium sp. 



Fig. 4. Vertical section through tunnel of Crabtfo interruptus. 



Fig. 5. Vertical section through tube and tunnel of Odynerus an- 

 nulatus (W). 



Fig. 6. Vertical section through tunnel of Odynerus annulatus (E). 



PLATE XV. 

 Fig. 3. Slightly enlarged, other figures slightly reduced. 



Fig. I. Clay tubes of Anthophora occidentalis. 



Fig. 2. Lateral view of one of the clay tubes of same. 



Fig. 3. Clay cell of Anthophora occidentalis showing aperture from 

 which the beetle, Hornia gigantea Wellman has emerged. 



Fig. 5. Vertical section through main shaft of a burrow of the 

 wasp, Odynerus geminus, showing the smaller apertures to the branches. 



Fig. 6. Horizontal section through the lower half of Fig. 7. 



Fig. 7. Vertical section through the burrow of Odynerus geminus, 

 with those branches and cells out of the vertical plane brought in. 



PLATE XVI. 



Figs. I, 2, 3 and 4." Vertical sections through the burrows of Ody- 

 nerus geminus, with those branches and cells out of the vertical plane 

 brought in. Reduced. 



Fig. 5. Trypoxylon texense. 



Fig. 6. Melitoma grisella. 



Fig. 7. Ltoxostege sticticalis. 



*See Ent. News, XXII, pp. 15-17, Jan., 1911. 



