Species of Cohoptera from Rodriguez. 115 



Lamellicornia. 



Aphodiidse. 



Rhyssemus tarsaUs^ sp. n. 



R. fusco-niger, nitidus, fronte granosa, vertice subtilius granuloso ; 

 thorace transversim quadricarinato ; elytris punctato-striatis, 

 interstitiis biseriatim granulatis. Long. 1| lin., lat. | lin. 



Extremely close to R. germanus, and only differs in being 

 more shining, in having the projection in front of the eye 

 nearly rectangular (scarcely obtuse), the granulation of the 

 elytra a trifle less fine ; the basal joint of the posterior tarsi 

 is as long as the spur, whereas in R. germanus it appears to 

 be always a little shorter. 



Melolonthidse. 



Lachnostenia gradaria^ sp. n. 



L. oblonga, convexa, brunnea, sat nitida ; capite sat magno, collo 

 laevi, fronte planiuscula crebre distincte punctata ; clypeo confertim 

 fortius punctato, margiuato, medio vix sinuato ; thorace longitu- 

 dine fere duplo latiore, convexo, minus crebre punctato, ante 

 medium paulo angustato, margine antico fere recto, angulis 

 anticis obtusiusculis, posticis obtusis ; scutello laevi ; elytris basi 

 thoracis latitudine postice paulo ampliatis, convexis, ad apicem 

 rotundatis, hand crebre punctatis, marginibus incrassatis piceis ; 

 pectore longe flavo-pubescente ; abdomine ample parce punctato ; 

 pygidio sat crebre fortiter punctato. Long. 9| lin., lat. 4| lin. 



Lachnosterna Rodriguezi^ sp. n. 



L. oblonga, leviter convexa, nitida, pallide brunnea*, sat lata ; 

 capite lato, sat crebre fortiter punctato ; clypeo brevi, fortiter 

 transverse, reflexo-marginato, crebre punctato, medio paululo 

 producto, utrinque leviter sinuato ; oculis sat magnis ; thorace 

 longitudine duplo latiore, leviter convexo, sat crebre distincte 

 punctato, margine antico leviter flexuoso, angulis anticis obtusi- 

 usculis, lateribus arcuatis, angulis obtusis, basi utrinque sinuata, 

 medio parum lobata ; scutello laevi ; elytris thoracis latitudine at 

 85 longioribus, post medium paululo ampliatis dorso depressius- 

 culis, ad apicem rotundatis, minus crebre punctulatis, sutura 

 parum elevata. Long. 10|-12;^ lin., lat. 5-6] lin, 



Dynastidse. 



Oryctes minor ^ sp. n. 

 0. oblongus, niger, nitidus ; capite antice angustato, rugoso, medio 

 vix nodose ; thorace longitudine 3 latiore, nitido, parce subtiliter 



* Two dead specimens, possibly bleached. 



