74 LE CONTE.— FRAGMENTA ENTOMOLOGICA. 



DYCTIOPTERA, Latr. {Lygistopteriis, Dej. Cat.) 



1. *SUBSTRIATUS. — Niger, thorace canaliculato, transversim biimpresso, lateribus late luteis ; elytris rugosis, 

 obsolete striatis. Long -44 unc. lat. -15. Habitat in provinciis australibus minus frequens. 



Lygistopterus substriatus, Dej. Cat. 



Elongatus, niger, opacus, tenuiter pubescens. Caput subrostratum, nitidum levse: 

 mandibulis rufis. Thorax capite duplo latior, subquadratus, latitudine paulo brevior, 

 antice subangustatus lateribus rectis, apice leviter roturidato, basi fere recte truncato, 

 angulis posticis subacutis ; disco fere planus, insequalis, canaliculatus, transversim 

 profunde biimpressus, niger, lateribus late luteis. Elytra parallela, subtiliter rugosa 

 leviter obsoleteque striata. 



DIGRAPHA, Nevs^man. {Charactus, Dej. Cat.) 



'thorax sesqui latior, reticulata. 



■--i ='i M f lata, antice juxta suturam producta, ------ discrepans. 



S g«J 2 J postice sinuata, antennarum articulo 2""^° brunneo, - . . typica. 



"- [_angustiore, - --.. *affinis. 



{__versus marginem abbreviata, -.-..-- dorsalis. 

 thorax capite duplo latior, *aficalis. 

 thorax capite vix sesqui latior, ...-_--. terminalis. 



fThorax capite duplo, vel plus duplo latior. 



1. DISCREPANS. — Nigra, subtiliter pubescens: thorace lateribus late luteis; elytris reticulatis luteis ; fascia 



lata subrotundata, antice ad scutellum producta, apiceque late nigris. Long. •45-'6 : lat. •25-*3. Habitat 

 ubique sat frequens. 



Digrapha discrepans, Nev^^man, v. 381. 



Charactus vicinus, Dej. Cat. 



Thorax latitudine paulo brevior, antice angustatus, apice obtuse rotundatus 

 lateribus ampliatis, leviter sinuatis, angulis posticis valde productis acutissimis, basi 

 bisinuato : disco concavus, biimpressus, medio acute carinatus, margine tenui, 

 (sicut in omnibus) incrassato : niger lateribus late luteis. 



2. TYPICA. — Nigra subtiliter pubescens ; thorace luteo, vitta media nigra ; elytris reticulatis luteis, fascia 



media lata subsinuata Integra, apiceque late nigris ; antennarum articulo 2""^° brunneo. Long. -S-'T : 

 lat. •26--35. Habitat in provinciis mediis. 



Digrapha typica, Nevs^mau v. 380. 



Charactus nobilis Dej. Cat. 



Thorax latitudine brevior, antice angustatus, apice obtuse rotundatus, lateribus 

 ampliatis, paulo sinuatis, angulis posticis modice productis, acutissimis, basi leviter 

 bisinuato, dorso concavus, acute carinatus, profundius quadratim biimpressus ; luteus 

 vitta media lata niorra. 



