INDIAN DRAGONFLIES. 497 



Wings delicate, the base safEronated, in the forewing as far as the trigone, 

 in the hind as far as the distal side of trigone or a cell beyond. The extent 

 of the saffronation somewhat variable in extent and intensity. Stigma very 

 small, yellow with black borders. 



2 Face and forehead bright yellow, as is also the thorax, the black markings 

 being better defined and broader. 



Abdomen reddish brown or ochreous, the segments bordered ^\'ith black, 

 2 and 3 having bright yellow, narrow, basal rings. 



In the British Museum specimens, the abdomen is j'eUow and the first 3 seg- 

 ments are Avithout marldngs, the 4th segment is brown in the middle and with a 

 yellow basal annule and a black, diffuse apical annule, 5 and 6 are similar 

 "but the basal annule extends posteriorly on to the sides so that in segment 6, the 

 dorsum appears to have a broad, brown triangle on its dorsum \vith its apex 

 directed basally. Segments 8 to 10 black. 



Genitaha : border of segment 8 undilated : end of ventral plate broadly 

 rounded and projecting, extending nearly to the end of the 9th ventral plate ; 

 the two terminal segments very small. 



jlah. — N. W. India, Assam and Upper Burma. Dr. Laidlaw has reported it 

 from N. Lakhimpur, Assam (R. Ind. Mus., 1914). 



Errata and Addenda. 



Vol. XXV. 



1. Plate I, the cubital space has not been shown m the forewing, compare 

 with the diagram of wing on Plate III. 



2. Page 454, line 4 of first para., " 160 " should read " 300 ". 



3*. Page 463, fine 32, 464, fine 10, 465, hues 48 and 54 and page 471, Une 

 4. " ovae " should read " ova ". 



■ 4 Plate " XI " should read " XII ", and on Plate XI, fig. 3 and Plate X, figs. 

 2 and 4 the antenna wMch have been drawn filiform, should be clubbed. 

 These antennje wU be dealt with separately when deahng with the Gomphmes. 



5 In the Explanation of Plate XII, "Corduha" should be " Cordulme . 



6. In the Explanation of Plate VII, " Argia gomphoides" should be " In- 



doneura gomphoides ". , ^ -,. „ , ,j j»t. j:„„o„" 



7 In the Explanation of Plate VI, " E. dispar should read P- dispaj- ^^ 

 8. In the Explanation of Plate IX, fine 3, " E. dispar should read P. 



dispar ", and on fine 12 " Argia gomphoides " should read Indoneura gom- 



^^r'^'on Plate III, the cubital nervure, denoted as "cu" in the explanation, 

 has not been shown in the diagram. It is a short, transverse nervure, crossmg 



''lo" af iSgellO, fine 16, for "small" read "anal", and on fine 19, for 



" n^'^OrpIgets' hnf itXlet; " Brachydiplax " and add after that fine :- 



single row of discoidal cells. . . • • • • . i * o ..^-nro 



2. T:|ne o. fcewing ,vit. the costal side r.^*^^ ^ -- 



12. On «t eitt* 3-.nd the reminder k the key, substitute :- 

 •'ii" Wings long and broad. 



Subtrigone formed of 2 or 3 ceUs. 

 a Only 6 antenodal nervures. 



"•.. /euration greyish white, almost ">-*^^^^_^.^ 

 Stigma bicolorous . . • • • • * " . 

 y. Wation black and distmot. St,gma -^^^.^^ 



6. N^T constantly 7 antenodal neVvures' .. i7ro«e»u.." 



11 



