676 JOURNAL, BOMBAY NATURAL HIST. SOCLETY, Vol. XXVIl. 



Genitalia : male on 2nd abdominal segment — lamina depressed, hamules well 

 developed, lobes small ; female : Sth abdominal segment not dilated but the 

 Tvhole of the terminal segments slightly broadened so that the end of the abdomen 

 is somewhat clubbed at the end : vulvar scale very small, cleft into two small 

 iriangular, leaf-like processes separated by a deep fissure. 



Wings moderately broad and long : line of trigone in the hindwing slightly 

 proximal to the line of the trigone in the fore : trigone in forewing broad, the 

 costal side about equal to the proximal, the distal much longer, its long axis in 

 the breadth of the wing, traversed once : trigone in the hindwing with distal and 

 costal sides a little subequal and the proximal much shorter, its long axis in the 

 length of the wing, entire, situated a Httle proximal to the arc : arc between the 

 1st and 2nd antenodal nervures : antenodal nervures 7, the final complete : 

 sectors of the arc separated in both wings, sj)ringing from the arc a little below 

 its middle : all hypertrigones entire : only rarely and irregularly, supplementary 

 nervures to the bridge : only 1 cubital nervure to all wings : 4th nervure irregu- 

 larly undulated : 5a (Rspl) very short but well developed : only 1 row of cells 

 between 5 and 5a (Rs and Rspl) : 7a (Mspl) well developed, very long, extend- 

 ing almost ^to the ternien : discoidal field strongly contracted at the termen 

 Avhere it is only 2 small cells wide, commencing mth 2 or 3 cells and then continued 

 ior a short distance as 2 rows of cells : termen strongly indented at the 6th 

 nervure : subtrigone formed of 3 cells, its basal nervure not meeting the trigone 

 but separated from it by a short stalk : loop long and narrow and with a very 

 small toe, split cells at the outer angle only : anal area formed of 2 or 3 rows of 

 cells, large and running obliquely : anal border in both sexes rounded. Stigma 

 short and comparatively broad. Membrane small. 



Only one species found within Indian limits. 



1. Hcmicorduiia aslatica, Selys. 



Selys, Bull. Acad. Belg. (2) Mar. 1878. 

 Martin, Coll. Selys, 1906. 

 Id. Gen. Insectorum, 1912. 

 Laidlaw. Rec. Ind. Mus, 1914. 

 Fraser, Bom. Nat. Hist. Journ, 1919. 



Male. Hindmng 32 mm., abdomen 33 mm. 



Female. Hindwing 35 mm., abdomen 37 mm. 



Male : head ; eyes deep bottle green : vesicle, frons and upper part of epistome 

 brilliant metallic green : lower part of epistone, labrum and labium bright yellow. 



Prothorax blackish brown, Avith a large, dorsal, yellow spot. 



Thorax bright metallic green on the dorsum and humeral regions, the sides 

 posterior to this being bright yellow, traversed by a broad, metaUic green stripe 

 which runs obhquely down and forward from the root of the hindwing. Legs 

 black, the coxse and greater part of the femora yellow. 



Wings hyaline, faintly smoked. The anal border of the liindwing in the male 

 Tounded, not excavate as in other Cordulines. (This feature is associated with 

 an absence of the auricles, the small, ear-hke processes found on the sides of the 

 2nd abdominal segment of most Cordulines and many ^sohnines and Gomphines. 

 Apparently there is some corelation between the two, the wings being notched 

 at the base to clear these appendages, or it may be that the auricles fill in the gap 

 left by the notched wing, probably the former is the correct explanation. The 

 wings of females are never notched in any of the insects quoted and this is always 

 associated with very tiny, rudimentary auricles.) 



Abdomen clavate, the first two segments dilated a little dorso-ventrally and 

 laterally, the 3rd and 4th constricted, the remaining segments gradually dilating 

 as far as the 7th and then tapering to the end. The terminal 6 or 7 segments 

 depressed. Black, marked with metallic green and yellow as follows : — a narrow 

 metalhc green stripe running from the 1st to the 4th segment dorsally, the sides 



