262 LAMELLICORNIA. 



Group ANTICHIRINA. 

 PLATYEUTELA. 



Corpus latissime ovatum, convexum. Clypeus brevis, latus, qtiadrangularis, sulcato-marginatus, margine antice 

 sicut in gen. Telauge retrorsum declivis. Antennae 10-articulatse. Labrum medio basi valde concaviter 

 depressum, apiee deflexum ; mentum convexum, ligula leviter depressa, margine late sinuato. Mandibulas 

 extus rotundatae, inermes, infra apicem intus dente valido instructs. Thorax lobo lato basali immarginato 

 apiceque leviter sinuato, basi utrinque usque ad angulum leviter sinuato ibique subtiliter marginato. 

 Scutellum mediocre, scutiforme. Elytra grosse sculpturata, tenuiter marginata. Pedes sat graciles. 

 Tibiae anticae acute bidentatae ; ungues graciles paullo ina3quales, omnes simplices ($?). Mesosternum 

 valde productum, subrectum. 



The insect on which this genus is founded has the appearance of a broad Anomala 

 or Euchlora, and the labrum is that of an Anomala; but the total absence of mem- 

 branous margin to the elytra, the frontal suture, and the 10-jointed antennae, remove it 

 from the subfamily to which Anomala belongs. Its place is evidently near Telaugis, 

 though the form of body and sculpture of the elytra give it an appearance totally 

 unlike that genus. 



The base of the thorax has a similar widely-interrupted margin, and the anterior 

 vertical face of the clypeus slopes backward and forms a fold (highest in the middle) in 

 front of the head. But the fold is not so horizontal as in Telaugis, and is separated 

 from the surface proper of the clypeus by a deep and broad groove which surrounds 

 the three sides of the clypeus. 



l. Platyrutela cribrata. (Tab. XV. fig. 1.) 



Obscure olivaceo-viridis, elytris fuscescentibus, subtus cum femoribus viridi-aeneis, ventris segmentis postice 

 cupreo-auratis, tibiis et tarsis piceis vel runs, pectore et ventre utrinque longe griseo-pilosis ; capite et 

 thorace dense punctulatis, punctis majoribus et minoribus intermixtis, hoc lateribus arcuatis, angulis 

 posticis rotundatis ; scutello lasvi ; elytris grosse et profunde striato-punctatis, punctis dorsalibus in seriebus 

 undecim ordinatis, sed 2 a , 7 a , 8 a et 9 a plus minusve confusis. Pygidium granuloso-rugulosum, viridi- 

 aeneum, nitidum. 



Long. 22 millim. § ? 



Hab. Costa Rica (Bogers). 



Two examples only, judging from the simple claws most probably females. 



LAGOCHILE. 



Lagochile, Hoffinansegg, in Wiedem. Zool. Mag. i. 1, p. 14 (1817); Lacordaire, Gen. Col. iii. 



p. 343 ; Blanchard, Cat. Coll. Ent. i. p. 204. 

 Chasmodia, MacLeay, Horse Ent. i. p. 155 (1819) ; Burmeister, Handb. der Ent. iv. 1, p. 377. 

 Ometis, Latreille, in Cuvier's Regne Anim. iv. p. 554 (1829) ; Lacordaire, Gen. Col. iii. p. 344. 



The sole character on which the genus Ometis is founded lies in the ascendent meso- 

 thoracic epimera. This is nearly as well marked in the typical species of Lagochile 

 (L. trigona) as in the type of Ometis ; the name, therefore, if the genus is to be considered 

 valid, becomes a synonym of Lagochile, and the majority of the species hitherto 



