324 Mr. AV. L. Distant 07i the 



and a larger spot on each lateral area (sometimes practically 

 absent), and a rounded spot near each anterior angle of the 

 basal cruciform elevation black ; abdomen above pale casta- 

 neous with black shadings on basal and apical areas, beneath 

 pale shining ochraceous, the apical area pale castaueous; 

 sternum, opercula, and legs testaceous brown ; tegmina and 

 ^Yings hyaline; the first with the costal area, venation, basal 

 cell, sutlusions to basal margins of first and second ulnar 

 areas, broader suffusions to the apical margins of all the 

 ulnar areas, and prominent spots to the apices of all the 

 veins to apical areas testaceous brown ; wings with broad 

 suffusions at the apices of the upper ulnar areas, and narrow 

 outer margin testaceous brown ; face prominently trans- 

 versely ridged on lateral areas ; rostrum passing posterior 

 coxae, its apex black ; opercula transverse, not extending 

 beyond base of abdomen, outer margins convex ; body 

 above and beneath more or less sparingly ochraceously 

 pilose. 



Long., excl. tegm., ? , 37-42 mm. ; exp. tegm. 100- 

 105 mm. 



Hab. Laos ; Chapa (i?. Vitalis de Salva:a). 



Allied to T. psecas, Walk., but a larger species, the oper- 

 cula broader and more transverse, the Aviugs with discal 

 suffusions and margins testaceous brown. 



Terpnosia mesonotalis. 



Terpnosia mesonotalis, Dist. Auu. & Mag. Nat. Hist. (8) xix. p. 102 



(1917). 

 Calcagnmus salvazanus, Dist. 1. c. p. 103. 



The specimen I included in the genus Calcaginus (supra) 

 ■was apparently tuberculous on the abdomen beneath; from 

 a further and lengthy series this character is not to be 

 maintained, and the species must be suppressed and placed 

 as a synonym of Terpnosia mesonotalis. 



Gceana laosensis, sp. n. 



? . Head, pronotum, and niesonotum black ; a large spot 

 on each lateral area of the pronotum, the abdomen, and legs 

 more or less bronzy brown ; two basal spots to head (one 

 near each eye), a transverse series of four spots to meso- 

 notum and two central spots at base of same, a spot on each 

 side of face near eyes, coxal margins, and a double series of 

 submarginal abdominal segmental spots ochraceous ; teg- 

 mina pale tawny brown, a central transverse series of four 



