Meinert.] 188 [Oct. 2, 



Laminae dorsales prater undecim priores (obsolete) marginatae. 

 Pleurae posticae angustae, subrugosa?, porosa 1 , rotundate truncatae. 

 Lamina ultima veutralis lata, brevis, valde angustata, post rotundate 

 truncata. 



Long. 40 mm. 



Hab. Ascension Island, South Sea (one single specimen). 



6. Gen. Rhoda, n. gen. 



Lamina ceplialica a lamina prima dorsali partim obtecta. 



Oculi ocellis 4. 



Antenna? breviusculae vel breves, ad basin incrassatae, valde attenuates, 

 19-articulatae, articulis praeter ultimum brevibus vel perbrevibus, prioribus 

 transversalibus. 



Labri fimbria 



Labii processus 



Palporum maxillarium unguis in latere interiore dentibus binis longis- 

 acutis armato ; fimbria digitalis unguem medium procul complens. 



Mandibulae. . .. 



Metameri quarti sternum integrum, robustum ; prosternum perlonge 

 productum, ante in dentes magnos incisuni ; pedes prensorii articulo 

 secundo et tertio parvis, interruptis. 



Segmentum septimum absque spiraculis. 



Spiracula profunda, longa, linearia vel paulum triangula, longitudina- 

 lia, per paria sensim longitudine paulum decrescentia. 



Pleurae posticae infra porosae, truncatae. 



Pedes anales breves vel perbreves, deplanati, quinquearticulati, articulo 

 primo (femore) spinigero, ungue crasso, parum arcuato, absque unguicu- 

 lis, infra carina longa, dendssime crenulata instructo. 



As I have had but one single specimen of this new genus to 

 study, I have not been able to give such full characteristics as 

 I wished. 



1. Rhoda Thayert, n. sp. 



Flava, ante et post paulum fulvescens ; minus gracilis, subhrvis, lami- 

 nis dorsalibus atque ventralibus profunde bisulcatis, capite subovali, im- 

 marginato. Antennae breves, crassae, 19-articulatae praeter articulos senos 

 priores dense, brevissime birsutae, articulis praeter ultimum brevibus. 



Dentes prosternales terni, validi, truncata 1 ; dens coxalis productus 

 acutiusculus. 



Pedes anales breves, crassae, contigua-, in margine sup. interiore femoris 

 spinulis ternis (postica majore, bicuspide) in latere interiore spinulis binis 

 perparvis, in margine inf. interiore spinulis binis parvis arniati. 



Lamina' dorsales praeter ultimata immarginatee. 



Pleurae postica- angustae, subrugosa 1 , porosa 1 , truncatae. 



