HO LAMELLICOENIA. 



medio late dentatis, postice intus leviter curvatis deinde versus marginem posticum rectis; elytris dense 



granalatis, utrinque striis obsoletis quatuor ; tibiis anticis extus 5-dentatis. 

 5? Clypei dentibus minoribus, mediano antice usque ad epistomatis basin deelivi nee verticali ; tborace 



medio minus profunde excavato, fovea magna anteriore obsoleta fundo omnino granulato. 

 Long. 13-14 millim. 



Hah. Panama, Volcan de Chiriqui (Champion). Many examples. 



Resembles much, though undoubtedly specifically distinct from, the Brazilian A. 

 tridentatus ; it differs in many points — notably in the sharp elevated triangular tooth 

 in the middle of the thoracic carinse, and the parallel prolongation of the latter towards 

 the hind margin ; and also in the different elytral sculpture, which consists of definite 

 granules without punctures or rugosity *. 



4. Athyreus excavatus. 



Athyreus excavatus, Casteln. Hist. Nat. Ins. Col. ii. p. 103 (1840) x ; Klug, Abhandl. Akad. Berlin, 

 1843, p. 27, t. 1. ff. 9, 9a 2 ; Westw. Trans. Linn. Soc. xx. t. 22. f. 9 3 . 



Forma typica. Tibiae anticae 4-dentatae. 



Hab. Mexico, Tehuantepec (Sumichrast, in coll. Salle), Cordova, Vera Cruz (Hoge) ; 

 Costa Eica, Cache (Bogers) ; Panama (MHeannan). — South Ameeica, Cayenne x , 

 British Guiana 2 , Orinoco 3 . 



Var. Tibias anticae 5-dentatae. — A. mexicanus, Klug, Abbandl. Akad. Berlin, 1843, p. 29, t. 2. if. 4, 4 a \ ' 



Bah. Mexico, Cordova, Juquila (Salle); Guatemala, Coatepeque (Champion); Nica- 

 ragua, Chontales (Janson) ; Panama, Volcan de Chiriqui (Champion). — South America, 

 Pernambuco (Forbes), Bahia (Lacerda 1 ). 



Var. Tibiae anticae 6-dentatse. — A. lanuginosus, Klug, Abhandl. Akad. Berlin, 1843, p. 28, t. 2. ff. 2, 2 a\ 



Hab. Mexico, Jalapa (Hoge), Peras (Salle) ; Guatemala, El Reposo (Champion) ; 

 Nicaragua, Chontales (Janson); Costa Rica, Cache (Bogers); Panama, Volcan de 

 Chiriqui (Champion).— -South America, Venezuela 1 , British Guiana, Cayenne, Amazons, 

 Bahia 1 . 



This appears to be a tolerably common and widely spread species in the northern 

 parts of Tropical America. The characters on which Klug relied in separating it into 



* Another Brazilian species exists in collections which is liable to be mistaken for A. tridenticeps. The 

 following brief description will perhaps suffice to distinguish it : — 



Athyreus catharinse, n. sp. 



Quoad colores A. tridentato simillinms, elytris adhuc minus granulatis, sed crebre subrugulose punctatis ; differt 

 clypeo spina mediana robusta elongata thoracisque carinis medio valde approsimatis ibique uncinato- 

 dentatis, concavitate postice dilatata laevi. 



Long. 13 millim. 



Hab, Bkazul, Santa Catbarina. Two examples, both males. 



