131 



Small or discal cross-vein far before the middle of the discal 



cell V 



Small cross-vein at or near the middle of the discal cell. .V'l 

 One species in group \'I is known in which the basal seg- 

 ment is entirely without lateral bristles ; group IV is represented 

 by a solitarv minute species (though possibly the pair described 

 are two, and not the sexes of one, species) ; while Group I con- 

 tains several species in which the stigma is greatlv lengthened, 

 as compared with the fourth costal segment, somewhat resem- 

 bling Chalarus and VcrraUia in this respect ; and some of these 

 have the basal antennal joints rather more than usually bristly, 

 though less so than in the latter genus. In other respects they 

 are like ordinary Pipunculus. The Hawaiian species that are 

 here described as new, belong to Group I; the double row of 

 short spinules on the femora beneath are unusually well devel- 

 oped in these, as also are the marginal bristles of the scutellum 

 and those on the basal abdominal segment ; the bristles or fringe 

 of hairs on the middle femora posteriorly are long and distinct 

 in some males, but much less developed, and represented by 

 soft hairs in such females, as are known. 



LIST OF SPECIES OF PIPUNCULUS HERE DESCRIBED. 



A. Australian species. 



*i P. cniciafoi\ sp. nov. 



*2 P. ciicalyf^fl, sp. nov. 



*3 P. criiiys, sp. nov. 



*4 P. hylaciis, sp. nov. 



5 P. fall ax. sp. nov. 



6 P. dollcJiflsfigiiiiis. sp. nov. 



7 P. laiiicllifcr, sp. nov. 

 *8 P. co)nlfaiis. sp. nov. 



9 P. agaiinis, sp. nov. 



*io P. ciiicrascciis, s]x nov. 



*ii P. bciicficicjis. sp. nov. 



*I2 P. hell no, sp. nov. 



''''13 P. Kocbclci. sp. tiov. 



*I4 P. iiionas, sp. nov. 



*I5 P. f'icrodcs. sp. nov. 



''"'16 P. aiifhracios. sp. nov. 



17 P. cryf>slc}i:lciis, sp. nov. 



18 P. inicrodcs, sp. now 



