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(almost encircling the black pellet), and 3 large spots at apex of 

 costal cell and on the basal apical-cells. 



Length : 3^ mill. 



Hab: Queensland, Cairns (vii). 



Family Eutropistidae. 

 (z=Tropidnchida Stal.) 



I am a little uncertain as to the constituents of this; the an- 

 tennal structure is often very obscure and I have not been able 

 to examine it in some forms as I would wish. The subcostal 

 cell is present and the costal cell usually provided with trans- 

 verse veins; the anal vein runs into the apical angle of the clavus. 

 The last segment of the rostrum is moderately long. 



Monopsis Spinola, which Stal places in his Tropiduchida, a])- 

 pears to me to belong to the Dictyophorinae. 



Australian and Yitian Genera. 



1. Subcostal cell absent or exceedingly narrow 



I . Ossa Alotsliulsky 



I a. Subcostal cell present, costal cell with many transverse 

 veins 2. 



2. Head at least twice as long as wide . . 5 .Rhinodktya gen. nov. 

 2a. Head little, if at all, longer than wide 3. 



3. Frons with an oblique keel on each side between mediLU 

 and lateral keels 4. Vaiiiia gen. nov. 



3a. No oblique keels : . 4. 



4. Vertex transverse ; apical area of tegmen large 



3. Pcltodictya gen. nov. 



4a. Vertex elongate, longer than wide ; apical area very nar- 

 row 2. Daradax Walker. 



Ossa Mots'hulsky. 



Ossa Mots'h., r863 Bull. Soc. Nat. Moscou XXXVI, 2: 106; 

 Melichar 1903 Horn. Ceylon 49. 



Both the species hereinafter described, 'have the head more 

 elongate than in the Sinhalese 0. dimidiata. 

 I. Six red specks on vertex arranged longitudinally in 2 

 rows; length less than 7 mill veniista sp. nov. 



