32 Edoardo Zavattari: 



8ulo', concentrice et svbtilüer striato; mandihulis robustis, falccUis apice 

 profunde hidentatis, margine interno dente breve intritctis, facie externa 

 sulcatis] fronte sat convexa punctato-reticulata, et paulum rugosa\ oculis 

 perpaulum interne incisis ; capitis angulis posticis tumidulis ; antennarum 

 scapo paulum arcuaio et ad apicem aliquanto inflato; funiculi articulo 

 primo brevi, glohoso, articulis raeliquis contrictis, sed tarnen distinctis 

 davam paulum inflatam ad apicem aliquanto attenuatam formantihus. 



Thorax robustus, distincte longior quam latus, punctato-reticulatus 

 aliquanto rugosus', pronoti marginibus antico et postico regulariter rotun- 

 datis; mesonoti disco ovato, longiori quxim lato, lineis duabus arcuatis 

 longitudinalibus, ui in gen. Ceramius, sulcato; scutello suhtriangulari, 

 ejus margine punctato nee reticulato ; postscutello a scuiello tecto, solum ut 

 dngulo manifesto; segmento mediario medio longitudinaliter late sulcato, 

 lateraliter tumidulo et rotundato, sulco transverse striolato, clunis punctu- 

 latis; tegulis nitidis ad basim aliquanto rugulosis; alarum cellula radiali 

 ab alae margine apice alieno rotundato ; cellulis cubitalibus clausis duabus, 

 secunda irregulatiter trapezoidali, ambo nervös recurrentes accipiente; 

 pedibus sat brevibus, tibiis intermediis apice bispinosis. 



^Abdominis segmentum primum base angustata, deinde supra sub- 

 globose inflatum apice angustatum, pedunculum formans; segmenta 

 raeliqua transversa, depressa, omnia finissime punctulato-striolata. 



Long. corp. tot. 11 mm. alae 9^2 *^wt. 



$: Brasilien: Matto Grasso: Conimbä-Urucü. (F. Silvestri, 

 Genua Mus.) 



Gen. Plesiozethus Cameron 



Cameron, Entomologist XXXVIII 1905 p. 269. id.id. XL 1907 p. 62. 



Zethoides Cameron (nee Fox), Trans. Am. Ent. Soc. XXX 1904 

 p. 93 ^. 



Metazethoides Schulz, Spolia Hymenopt. Paderborn 1906 p. 213. 



Antennae breves, scapo laeve arcuaio, flagelli articulo primo brevi 

 otque globoso, articulis sequentibus fortiter constrictis: primis distinctis, 

 ultimis indistinctis, clavam ad apicem attenuatam formantibus. 



Partes buccales nondum inspectae, forsitam palpi labiales S-arti- 

 culati, palpi maxillares i-articulati (sec. Cameron^). 



Caput distincte longius quum latum, facie subtus ocellis multo inflata 

 quasi subtuberculata; oculis distincte triangulariter incisis; clypeo apice 

 rotundato; mandibulis longis, falcatis, haud dentatis. 



Thorax elongatus; prothorace antice et postice rotundato; scutello 

 lato, margine rotundato; postscutello a scutello tecto; segmento mediario 

 rotundate-declivi, lateribus rotundatis, medio bicarinulato. 



*) Über die Zahl der Glieder der Palpen schreibt Cameron: «Maxillary 

 palpi with at least 4, the labial with at least S-joints» und weiter • I have not 

 venture to ruu the risk of dissecting a specimen to make out the number of 

 joints in the palpi, which uiay have a Joint more than I have stated». Un- 

 glücklicherweise ist mein einziges Stück in schlechtem Zustande, so daß es auch 

 mir unmöglich gewesen ist, die Palpen zu untersuchen. 



