106 TEONIUS. 



Thonius snbstriatus, sp. n. 



T. pavonino simillimus, seel latior, tliorace breviore ; elytris 

 basi striato-jnmctatis, fascia basali siib-recta, maciilis duabus api- 

 caiibus fere confluentibu.s, ferrugineo-cinctis. L. 5| liii. 



Columbia. 



Tlionins Euckleyi, sp. n. 



T. pavonino similis, sed postice valde dilatatus et convexus, 

 tliorace breviore postice tenue marginati, unicolore, elytris ut in 

 T. maculato signatis, macula interna subapicali minuta, totis 

 ferrugineo-ciuctis. L. 6 — 7 lin. 



Ecuador (Buckley), 



The prosternum is compressed, largely elevated and dilated. 



Thonius nebrioides, sp. n. 



Ovatus, rufo-brunneus, nigro-signatus, capite Isevi, nigro-bi- 

 signato; tliorace quadrato, angulis anticis acutis, crasse margin atis, 

 lateribus fortiter rotuudatis, basi elytris multo angustiore, disco 

 Isevi nigro-signato ; elytris Isevibus, ba-si punctis perpaucis sub- 

 seriatim impressis, fascia basali interrupta, subapicalique obliqua 

 nigris ferrugineo-cinctis. L. 5 J lin. 



Columbia. 



Yery distinct by tlie dilated tliorax; the markings are similar 

 to those of T. 2J(('Voni7ius. 



Thonius fiexnososignatus, sp. n. 



Ovatus, elytris basi constrictis, fulvus, capite oculis fortius 

 marginatis ; tliorace angusto vix transverso, aiitice leviter emar- 

 ginato, lateribus rotundatis, ante angulos posticos rectos, sinuatis, 

 basi truncato, Icevi, tenue nigro-limbato, maculis 2 discoidalibus 

 (cum margiiie aiitico connectis), 2 basal ibus remotis, nigris; elytris 

 basi constrictis, postice acuminatis, nigro-limbatis, uigro-signatis, 

 signatura ante medium ad sinistrum elytrum littera S simulante, 

 fasciaque flexuosa apicem versus. L. 5 lin. 



N, Granada. 



The first 2 ventral segments are black in the middle and with 

 black spots at the sides, the epipleurse bordered with black. 



Thonius fiavipennis. 



Thonius flavvpemils, Guer. Icon. R. A. Ins. 309. 

 Coluiubia. 



Thonius (?) uiiicolor. 



Thonius 7inicoIor, Guer. Icon. R. A. Ins. 300. 

 C\>hnnbia. 



