NO. 7 



PROTECTIVE ADAPTATIONS McATEE 



6: 



repellent fluid in the Meloidae, and in the Coccinellidae and Lain- 

 pyridae, and it issues from a pore at the end of the femur as a yellowish 

 fluid. The cantharidin in the blood of some species of Meloidae, 

 commonly known as ' Spanish Fly,' forms an especially caustic pro- 

 tection against birds, predacious insects and reptiles." (Wade, J. S., 

 Notes on defensive scent glands of certain Coleoptera, Psyche, vol. 28, 

 nos. 5-6, p. 146. Oct.-Dec, 1921.) 



Bird eucni'ies. — It is worth pointing out that about 15 per cent of 

 all the determinations of l)eetles were not carried to the family, and 

 consequently that the percentages for the various families should be, 

 on the average, about a seventh larger than shown in the tabulation 



Identifications of Coleoptera 



Nnnil)er of 



Family identifications 



Cicindclidae 649 



Carabidac 15,887 



Amphizoidae ... 



Omopbronidae 16 



Haliplidae 363 



Dytiscidae 1,729 



Gyrinidae 64 



Hydrophilidae 2,418 



Platypsyllidae 



Brathinidae 



Leptinidae 



Silphidae 409 



Clanibidae ... 



Scydmacnidae ... 



Orthoperidae 4 



Staphylinidae i/i'^S 



Pselaphidac 3 



Clavigcridac 



Ptiliidae ... 



Sphacritidae 



Colydiidae 5 



Murniidiidae 



Monoedidae 



^ There is an omissioii of 737 records of Carabidac and 574 of Chrysomelidae, 

 enough to make more than 1.5 per cent of the total of beetle records. 



'Computed from Leng, C. W., Catalogue of the Coleoptera of America 

 north of Mexico, 470 pp., 1920. 



' The number of nearctic species in the family. 



