XV.— Report upon a Collection of 

 Hippoboscidae (Diptera Pupipara) from 

 Borneo. ByG. F. Ferris, Stanford University, 

 California. 



(With one Plate.) 



Through the kindness of Dr. Eric Mjoberg I have been 

 enabled to examine a small collection of Hippoboscidae from 

 Borneo, \vhich is herewith reported upon. The holotypes of 

 the new species described are returned to Dr. Mjoberg for 

 deposit in the Sarawak Museum. Paratypes are retained for 

 the Stanford University collection. Other material is dis- 

 tributed as indicated in connection with the lists of specimens 

 examined. 



The lands bordering upon the Indian Ocean are extremely 

 rich in representatives of tlie three families of the Diptera 

 Pupipara, in fact a majority of all the known species are from 

 this great area, l^ndoubtedly also there remain many more 

 species still to be discovei'ed. Unfortunately, however, the 

 descriptions of species in this group are in large measure very 

 unsatisfactory and relatively few of the described forms can be 

 recognized with any degree of definiteness from the literature. 



The student in this group is therefore confronted with on the 

 one hand the alternative of tentatively identifying material 

 with named forms largely on a basis of probabilities or on the 

 other of naming almost everything as new with the possibility 

 of adding to the synonymy. As has been pointed out in an- 

 other paper (^) this condition arises in part from the methods 

 that have usually been employed in the study of these insects, 



(*) Ferris, G. F., and Cole, F. R. A Contribution to the Knowledge 

 of the HippoboscidcB. Parasitology 14; 178--205, 1922. 



Sar. Mus. Journ., No. 10, 1926. 



