552 Dr. C. P. Alexander on . 



-R4+5 about equal to m ; cell 1^^ M2 elongate, rectangular ; 

 m arcuated, longer than the outer deflection of M3 ; basal 

 deflection of Cui at about two-fifths the length of cell 1st M^. 



Abdominal segments dark brown with about the apical 

 quarter of each conspicuously yellow ; hypopygium yellow. 

 Male hypopygium armed with four partly chitinized appen- 

 dages, the genital chamber open. 



Hab. North Queensland. 



Hohtype, ^, Kuranda, Cairns District, altitude 1100 feet, 

 April 1921 {A.F. Dodd). 



" Ex leaf in scrub. '^ 



Limnobia (?) dactylolabis, sp, n. 



Antennae black ; mesonotal })ra3scutum obscure orange ; 

 pleura whitish testaceous with two narrow brown longi- 

 tudinal stripes; wings hyaline, stigma oval, dark brown; 

 Sci ending before mid-length of Rs ; cell 1^/ M2 closed; male 

 hypopygium with a single pleural appendage appearing as a 

 long, slender, curved, blackened rod. 



Male. — Length about 4.'6 mm.; wing 5*2 mm. 



Rostrum and palpi dark brown. Antennae moderately 

 elongate for a member of this genus ; first segment pale, 

 remainder of organ black ; flagellar segments oval with a 

 short, shiny pedicel. Head brownish orange, darker 

 adjoining the margin of the eyes. 



Pronotum orange-brown. Mesonotal prsescutum obscure 

 orange, unmarked ; remainder of the mesonotum orange- 

 brown. Pleura whitish testaceous with two narrow, brown, 

 longitudinal stripes, the more dorsal passing beneath the 

 root of the halteres, the ventral stripe occupying the sides of 

 the mesosternum and extending from fore to the middle 

 coxae. Halteres long and slender, dark brown, the base of 

 the stem paler. Legs with the coxae testaceous, the outer 

 faces slightly infumed; trochanters testaceous; remainder 

 of the legs broken. Wings hyaline ; stigma small, oval, 

 dark brown ; veins dark brownish black. Venation : Sc 

 moderately long, Sc^ ending before mid-length of Rs, Sc^ 

 some distance from its tip, ^1 alone about two-thirds the 

 basal deflection of Cui, a little longer than the first section 

 of Mi^.2 ; Us long, strongly arcuated at origin ; r at tip of 

 Ri and near two-fifths the length of i?2+3 j cell 1st M^ closed, 

 rather small, pentagonal ; basal deflection of Cuy at, or a 

 short distance before, the fork of M ; vein 2nd A close to 

 the wing-margin, cell 2nd A being linear. 



Abdominal segments dark brown, paler caudally; basal 



