Rev. F. W. Hope on some Nondescript Insects from .4ss(ini, 591 



Spec. 8. LucANus omissus. 



Long. line. 1, lin. 9. Lat. lin. 6. 



Castaneus ; niandibnlis valdè exsertis, apieibus acntis, dentibns 2 nigris snh- 

 basalibns aliisqne 4 subapicalibus. 



Caput antennis nigris, dentibus binis in vertice valdè elevatis, foveaque inter 

 dentés vix fortiter impressâ. DlandibuUv valdè exsertte, apieibus acntis, 

 dentibus binis nigris jiixta basin quatuorque prope apicem positis. Thont.i 

 punctatus, margine omni elevato. Elytra castanea, marginibus tenuissimis 

 suturaqne nigris. Corpus infra rubro-piceum, femoribus tibiisque conco- 

 loribus, tarsis nigris. Fœmina adbuc niihi incognita. 



I have given the specific name of omissus to the above insect, as I at first 

 imagined it to be the same as a Javanese species named in the French cabinets 

 castaneus. On a closer examination it appears to be distinct, anil is now de- 

 scribed. I have received it from Dr. Cantor: it appears to be of rare occur- 

 rence. 



Spec. 9. LucANUs serricollis. 



Long. une. 1 , lin. 3. Lat. lin. 6. 



Ater politus ; mandibulis parkin exsertis sinuatis et pnnctatis. 



Antennœ nigrse, articnlis 6 ultimis cinerascentibus. 



Caput anticè fortiter punctulatum, mandibulis parùin exsertis sinuatis et pnnc- 

 tatis. Thorax convexus, anticè et posticè lineâ elevatâ insignitus, lateri- 

 bus serratis. Elytra glabra, nitida. Corpus infrà nigrum, pedibus con- 

 coloribus. Femora parùm incrassata, tibiis valdè lineato-punctatis et 

 unidentatis. Tarsi infrà luteo-comati. 



The above insect appears to be the male of a hitherto unknown species of 

 Stag-beetle ; and it seems probable that when the female is discovered, it may 

 form the type of a new genus ; it belongs to the section which has five leaflets 

 forming the club of the antennœ. 



