LYKODA. 209 



Head wider than the thorax ; mandibles incised on their outer 

 side ; eyes not convergent, the inner orbits nearly parallel ; ocelli 

 complete and fully formed, placed in a wide triangle on the vertex ; 

 pronotum long, not much depressed beneath the level of the 

 mesonotum ; median segment short, about as long as the meso- 

 notum, above rounded posteriorly, with a steep slope to the apex ; 

 abdomen subpetiolate in the Oriental species, longish, acuminate at 



Fig. 49. — Lyroda formosa, $ . f . 



apex ; pygidial area in the female covered with short hairs ; wing 

 with the radial cell truncate at apex and appendiculate ; three 

 cubital cells, the 1st equal in length, measured on the cubital 

 nervure, to the 2ad and 3rd united, 2iid subtriangular or trape- 

 zoidal, 3rd oblique, wider below than above. 



Nothing is ou record of the habits. Oaly two species are 

 knovATi from India, but no doubt others exist. 



Key to tlie Species. 



a. Basal two segments of abdomen red L. formosa, p. 209. 



b. Abdomen entirely black L. venusta, p. 210. 



400. Lyroda formosa. 



Morpliota formosa, Smith, Jour. Linn. Soc. 18o9, p. 17, $ . 

 Lyroda formosa, Kohl, Verh. zool.-hot. Ges. Wien, 1884, p. 267. 

 ? Astata aro^enteofacialis, Cam. Mem. Manch. L. Ph. Soc. (4) ii, 

 1889, p. 151 (var.). 



5 . Head and thorax opaque velvety, densely pruinose on the 

 front of the head, clypeus, cheeks, pronotum, apex and sides of the 

 mesonotum, and apex and sides of the median segment ; front 

 with an impressed line from the anterior ocellus reaching up 

 to the base of the antenna) ; mesonotum with a wide medial 

 depression anteriorly ; median segment finely rugose, with a 

 medial longitudinal line carina from base not reaching the apex of 

 the segment ; abdomen slightly curved, subpetiolate, the margins 

 of segments 1-4 above with broad transverse pruinose bands. 

 Black, the basal two abdominal segments red ; the clypeus, front, 

 cheeks, pronotum, apex and sides of the mesonotum, and apex 

 and sides of the median segment with dense silvery pile, having 

 VOL. I. p 



