322 PROCEEDINGS OF THE ACADEMY OF [May, 



San Antonio, Texas, 1885, (M. Newell), 2 9, [Hebard Cln.]. 



Laredo, Tex., VIII, 12, 1912, (H.; very common in town and 

 exceedingly active, always in inaccessible holes and dark places in 

 stores, walls, etc.), 2 cf , 1 juv. cf. 



Plate IV. 



The outlines are very greatly enlarged, the stipple figures over twice natural 

 size. 



1. Gryllus assimilis {Fahricius),assimilis variant. Tia Juana, California. Male. 



Dorsal view of head. 



2. Gryllus assimilis (Fabricius), personatus variant. Tucson, Arizona. Male. 



Dorsal view of head. 



3. Gryllus domesticus Linnseus. San Antonio, Texas. Female. Dorsal view 



of head. 



4. Gryllus assimilis (Fabricius), mexicanus variant. Chalchicomula, Mexico. 



Facial aspect. 



5. Grylhis assimilis (Fabricius), personatus variant. Sentinel, Arizona. Male. 



Facial aspect. 



6. Gryllus assimilis {Fabricius), personatus variant. Tucson, Arizona. Female. 



Facial aspect. 



7. Gryllus assimilis (Fabricius), personatus variant. Tucson, Arizona. Male. 



Facial aspect. 



8. Gryllus 'assimilis (Fabricius), pennsylvanicus variant. Raleigh, North 



Carolina. Lateral outline of male titillatores. 



9. Gryllus assi7nilis (Fabricius), pennsylvanicus variant. Raleigh, North 



Carolina. Ventral outline of male titillatores. 



10. Gryllus domesticus Linnseus. San Antonio, Texas. Female. Facial aspect. 



11. Gryllus domesticus Linnseus. Philadelphia, Pennsylvania. Lateral outline 



of male titillatores. 



12. Gryllus domesticus Linnseus. Philadelphia, Pennsylvania. Ventral outline 



of male titillatores. 



The similarity between the mexicanus variant and darkest examples of the 

 personatus variant are shown by figs. 4 and 5. In the personatus variant every 

 condition between figs. 5 and 7 is found in the material before us, though the 

 great majority of specimens show the strongly defined color pattern. 



The male titillatores are, in all the variants of assimilis. as shown in figs. 8 and 9- 



