VI. A REVISION OF THE SPECIES OF 

 T A B A N U S F R O -^I THE ORIENTAL RE- 

 GION, INCLUDING NOTES ON SPECIES 

 FROM SURROUNDING COUNTRIES. 



By Gertrt^de Ricardo. 



The Oriental Region in this paper includes India, Burma, 

 Federated Malay States, Siam, Annam, Sumatra, Borneo, Java, 

 and other islands, the Philippines, Formosa, and the southern 

 part of China, as defined b}^ Wallace and others, but Celebes is 

 not included, following the eastern dividing line adopted by 

 Sclater, so that, as a rule, the species from Celebes are not 

 included here, but relegated to the Austro-Malay Region; judging 

 from the Bigot and Walker types I have seen from Celebes, they 

 certainly (with one or two exceptions included here) appear to 

 have little affinity to the Indo-Malay, Borneo and Java species. 



The material on the examination of which this paper is based, 

 includes the British ^Museum collection, a collection sent me by 

 Dr. Annandale from the Indian Museum for identification, a 

 smaller collection from Mr. F. M. Howlett, from the Pusa Agri- 

 cultural Research Institute, Bengal; besides species sent by Dr. 

 Kertesz from the Budapest Museum. To Dr. A. T. Stanton I am in- 

 debted for an interesting series of species collected in the Federated 

 Malay States. From Col. Alcock I have had a small collection to 

 identify belonging to the London School of Tropical Medicine. 

 Through the courtesy of the Director and of M. Jacques Surcouf 

 of the Paris :\Iuseum, I have been able to examine most of the 

 Macquart and Bigot types in their possession. Through the 

 courtesy of the authorities of the Natural History Museum 

 at Genoa, I was able to examine Rondani's types in their 

 collection. I am indebted to Mr. G. H. Verrall for his loan 

 of the majority of the Bigot types, which, as a rule, would 

 be very difficult to recognize from the descriptions, based in 

 many cases on single specimens, and now at any rate m a 

 very denuded condition. Bigot labelled many of the specimens 

 in the Indian Museum collections, but most of them are merely 

 MS. names, where he made a new species and published the descrip- 

 tion, he evidently interchanged the specimens with the Museum and 

 his own collection, so that some of Mr. Verrall's Bigot types have 

 co-types from the same series of specimens in the Indian 

 Museum collection. His specification of localities is very vague, 



