92 SPOLIA ZEYLANTCA, 



oblique, rounded. Occiput rounded, not transverse. Mesonotum 

 and scutellum shining ; its middle lobe reaches to th^ base of the 

 apical third, is then united to the apex by a stout keel, with a 

 narrow striated border on either side. Metanotum closely rugose. 

 First abdominal segment short ; its base rather abruptly sloped, its 

 sides and apex margined. The segments are closely, finely punc- 

 tured ; the area on the second segment large, becoming gradually 

 narrowed towards the apex ; the furrows striated, not suiting at 

 the apex ; there are no lateral furrows at the base. Suturiform 

 articulation striated : there are no furrows on the other segments. 

 There is a distinct curved furrow below the middle of the 

 propleurfe. 



Troporhogas, gen. nov. 



Transverse median nervure received near the base of the cellule, 

 close to the transverse median ; recurrent nervure received near 

 the apex of the cellule ; second cubital cellule twice longer than 

 wide, of equal width throughout ; anal nervure not interstitial. 

 Eyes large, clearly incised on the inner side ; malar space small. 

 Temples short, oblique. Occiput sharply margined, transverse. 

 Palpi very long, slender, pilose, 4- and 5-jointed, Metanotum 

 with two roundly diverging keels on the base. A depression on the 

 lowersideof the mesopleuraB. Basal three segments of abdomen 

 closely longitudinally striated ; the basal two with a keel down the 

 centre ; suturiform articulation crenulated ; there are crenulated 

 furrows on the fourth, fifth, and sixth segments ; the base of these 

 segments is depressed, the apex of the segments being raised and 

 clearly separated from the base of the following. Hypopygium 

 large, cultriform; ovipositor shortly projecting, the sheaths stout ; 

 antennae longer than the body, slender, pilose, over 50-jointed. 

 The abdomen is fully twice the length of the thorax ; the legs long 

 and slender ; the femora narrowed at the base. The first abscissa 

 of the radius is not half the length of the second ; the third is the 

 longest and is curved upwards. The tarsi longer than the 

 tibise; the metatarsus longer than the two following joints 

 united. 



In Dr. Ashmead's system (Lc.) this genus could only be con- 

 founded with Rhogas ,- that genus may be known from it by the 

 transverse median nervure being widely distant from the 

 transverse basal, by the metanotum having a stout keel down the 

 centre, not two at the base, by the shorter abdomen, with the 

 segments not sharply separated ; the shorter and stouter legs 

 with the tarsi not longer than the tibia; ; and the hypopygium 

 is not large and cultriform. 



