182 MR. r. WATiKER ON IIOMOPTEUA 



lateral keels united in front, slightly curved, longer than the middle 

 one, Mesothorax with two keels. Ahdomen and legs pale green. 

 Fore wings pale green beyond the middle, with many dots and points 

 of the ground-hue. Hind wings white. Length of the body 6 lines, 

 of the wings 24 lines. 



Hab. Sumatra. 



It may be distinguished from P. stolUi by the fore wings, which 

 have no band and are covered with dots to the tips. 



G-en. PcECiLOPTEBA, Latr. 



250, PcECiLOPTERA ciRCULATA. See Vol. I. p, 161. 

 Hab. Sumatra. Inhabits also Java and Borneo, 



Gen. Ckomna, Walk. 



251. Cromna auADRiPUNCTATA. Mosc. Pallide testaeea, vertice 

 unicarinato subconico subascendente, fronte, prothorace et mesothorace 

 tricarinatis, alis anticis albidis roseo bipunctatis venis transversis pluri- 

 mis, venis marginalibus furcatis, alis posticis albis. 



Male. Pale testaceous. Head with slightly prominent borders ; vertex 

 very much broader than long, somewhat conical, slightly ascend- 

 ing, with one keel ; front much longer than broad, conical towards 

 the vertex, with three keels, the keel on each side slightly curved. 

 Prothorax arched, with three keels, the keel on each side very oblique, 

 Mesothorax with three keels, the keel on each side slightly curved. 

 Legs short. Fore wings whitish, tuberculate at the base and along 

 most of the length of the interior bolder ; two red points in the disk, 

 one antemedial, the other postmedial; transverse veins numerous, irre- 

 gular ; costal transverse veins regular ; marginal veins forked. Hind 

 wings white. Length of the body 3 lines, of the wings 1 1 lines. 

 Hab. Mysol. 



252. Cromna CENTRALIS. Mas. Pallide viridis, vertice prothoraceque 

 unicarinatis, fronte et mesothorace tricarinatis, tarsis pallide rufescen- 

 tibus J alis anticis apice rectangulatis punctis paucis rufis, gutta rufa 

 albido marginatii, puncto nigro, linea marginali fusca interrupta, venis 

 transversis plurimis ; alis posticis albis, 



Male. Pale green, paler beneath. Head with slightly prominent bor- 

 ders ; vertex short, conical, twice as broad as long, with one keel ; 

 front flat, hardly longer than broad, with slightly rounded sides and 

 with three keels, the keel on each side curved outward ; face not 

 keeled, Prothorax much arched, slightly tuberculate, with one keel. 

 Mesothorax with three keels, the keel on each side slightly inclined 

 hindward towards the middle one. Tarsi pale reddish. Fore wings 

 rectangular at the tips, with tuberCleSi-which are most prevalent along 

 the costa and along the hind border ; a few red points and a brighter- 



