STEGAKOMUS. — CTEIs^OPLECTRA. 



461 



where not covered bj the pubescence densely and somewhat 

 coarsely punctiu'ed ; antennae very much longer, the spatulate 

 apical two segments black ; the posterior femora swollen, the 

 posterior tibiae dilated at their apical half, the apex on the under- 

 side compressed into a thin rouud fiat plate. 



Hah. Barrackpore, Bengal ; Lucknow ; Allahabad. $ S . 

 Length 8-9 ; exp. 16-17 mm. 



Genus CTENOPLECTRA. 



Ctenoplectra, Smith, Jour. Linn. Soc, 1858, p. 44. 

 Type, C. chalybea, Smith. 

 Ranije. Burma, the Malayan subregion, and South and East 



Africa. 



Head transverse, antennae inserted about the middle of the face, 



short, tlliform ; 2ud joint of the flagellum of the antennae constricted 



at the base ; ocelli placed in a curve forward on the vertex ; labrum 



prominent, rounded ; labial palpi 4- 

 jointed, the basal two joints stout, 

 subequal, apical two shorter and more 

 slender ; maxillary palpi 6-jointed, 

 basal three joints stout and of equal 

 length, apical joints more slender, 

 each decreasing in length from the 

 preceding one. Thorax large and 

 ovate : wings — the radial cell in the 

 fore wing acute at apex ; two cubital 

 cells, the 2nd strongly narrowed above 

 towards the radial, receiving both 

 recurrent nervures : legs with the 

 femora broad and compressed, the 

 inner calcar of the posterior tibijB (?) 

 lunate in shape and finely toothed on 

 the inside ; the posterior tibiae and 

 basal joint of the tarsi clothed with 

 dense long pubescence. Abdomen 

 broad, subovate, truncate at base, the 



apical segment in the male trilobed. 



I found C. chalijhea, Smith, collecting clay at muddy pools in the 



road, and once or twice saw it conveying pieces of circularly cut 



leaves to a hole in the wooden v^alls of a house in the Tenasserim 



forests. 



Key to the Species. 



a. Abdomen metallic blue. 



a'. Apical margins broadly of basal two segments 



of abdomen shining castaneous brown .... C. apicalis, p. 462. 

 b' . Apical margins of basal two abdominal seg- 

 ments not castaneous brown ; abdomen 



entirely deep blue C. chalyhea, p. 462. 



h. Abdomen black, not metallic blue C. cornuta, p. 462. 



Fig. 148. 



Cfenoplcx;fra apicalis, (^ . 



(Mouth -parts, much enlarged.) 



