414 Philippine Journal of Science i»i» 



the Trypaneidae or of the Ortalidse f it seems that the following 

 only may properly belong to Chaetodacus: 



discipennis Walker, 1861, from Batjan; seems to be near chrysotoxu* 



Hend. 

 terminifer Walker, 1860, from Macassar; closely allied to cilifer Hend. 



and to ablephar-us Bezzi. 

 diffusus Walker, 1860, from Macassar; seems to be allied to rtiaculi- 



pennis Dol. 

 emittens Walker, 1860, from Celebes; seems to belong to the ferrugineus 



group. 

 absolutus Walker, 1861, from Ceram; seems to be allied to ferrugineus 



Fabr. 

 expandens Walker, 1859, from the Aru Islands, seems to be very near 



ferrugineus Fabr. 

 pectoralis Walker, 1859, from Aroe, Batjan, and Waigoe; seems to 



be closely allied to ferrugineus Fabr. 



As an example of the richness and the great variety of the 

 Philippine fauna in Dacus species, it may be recorded that on 

 the small island of Batbatan," Antique Province, Panay, Mr. 

 McGregor procured in a single collection, consisting of thirty 

 specimens, no less than eight forms of Chaetodacus, seven of 

 which are new to science, as follows : 



Chaetodaciis atrichus sp. nov., 2 males and 1 female. 



Chaetodacus ferrugineus occipitalis var. nov., 6 males and 1 female. 



Chaetodacus ferrugineus pedestris Bezzi, 2 females. 



Chaetodacus ferrugineus limbiferus var. nov., 2 males and 5 females. 



Chaetodacus continuus sp. nov., 1 female. 



Chaetodacus mcgregori sp. nov., 1 male and 1 female. 



Chaetodacus rnundus sp. nov., 6 males. 



Chaetodacus tetrachaetus sp. nov., 2 males. 



The genera of the true Dacinae at present known can be dis- 

 tinguished with the aid of the following key which is a com- 

 plement of that already given by me. 7 It must be remarked 



'See my critical enumeration, Memoirs Ind. Mus. 3 (1913) 65-84. 



■ Batbatan Island lies 16 kilometers west of Culasi Point and has an 

 area of about 770 hectares. The shores are precipitous coral rock, and 

 there are few landing places. Nearly the entire island is 10 to 20 meters 

 above the sea; the highest point has an elevation of about 120 meters. 

 The soil is everywhere poor and thin. Considerable rice and a few coconuts 

 and bananas are cultivated; the native vegetation is scanty and consists 

 of plant species that are common on Panay. The flies described in this 

 paper as from Batbatan Island were caught in the small town at the 

 flowers of hedges of Jatropha curcas Linn., during a week of typhoon 

 weather, June 24 to 30, 1918. Doctor Bezzi has requested me to add this 

 note. — McGregor. 



7 Philip. Journ. Sci. § D 8 (1913) 323. 



