74 DUEHAM DIPTEEA 



XII. 111. 



111. Erioptera, Mg. 



Life history not accurately known. 



1 (10). O. absent, there being no X-vein between 4.b.a. and 



4.a. (IV. 20). 



2 (9). Yellow or brown species. 



3 (6). Wings brightly tinged with yellow. Bright yellow 



species. 



4 (5). Palpi yellow, smallish species. 



726. Erioptera flavescens, Mg. 

 Wearhead, 1 $, 3-8-01 ; Brancepeth, 1 $, 3 ?, 

 15-6-02. 



5 (4). Palpi black, larger species. 



727. Erioptera macrophthalma, Lw. 

 Hesleden, 1 $, 15-6-00. 



6 (8). Wings tinged with grey, general colour brownish 



yellow. 



7 (8). Thorax yellow. Palpi yellow with brown tips. 



(728. lutea, Mg.) 



8 (7). Thorax brownish. Palpi brown. 



729. Erioptera tcenionota, Mg. 

 Bishop Auckland, 1 $, 25-5-00. 



9 (2). Dark grey species with dark tinged wings. 



730. Erioptera fuscipennis, Mg. 

 Hesleden, 4 $, 1-8-02. 



10 (1). O. present, grey species. 



731. Erioptera trivia/is, Mg. 

 Hesleden, 1 ?, 4-8-99 ; Wearhead, 3 $, 1 $, 

 Aug., 1 90 1. 



112. Symplecta, Mg. 



1 (2). X.2.b. present, V.4.b. forked, V.4.a. simple, the X-vein 



closing O. being XAb.a. (IV. 19). 



(732. punctipenm's, Mg.) 



2 (1). X.2.b. absent, V.4.a. forked, V.4.b. simple, the X-vein 



closing O. being X,4.b, (733- stictica, Mg.) 



