386 MR. H. W. BATES ON NEW COLEOPTEROUS [JunC 18, 



profunde concavo,fronte carina lata obtusa antice deeUve et postice 



verticaliler truncata : thorace punctis umbilicatis annuliformihus 



medio distantibus, lateribus densis et suhconjluentihus, linea dor- 



sali areaque basali inqiunctatis : scutello subtilissime striguloso- 



punctulato : elytris planatis, paullo subtilius quam thorace 



a7uiulato-pu7ictatis, lateribus post medium apiceque dense strigu- 



losis : pygidium strigis concentricis densissime impressum, erecte 



fuhopilosum : corpore suhtus pedibusque {lateribus densius) 



/ulvo-pilosis. Long. 26 millim. 



Although the female only is in the collection and of that a single 



example, the differences in colour and sculpture from the same sex 



in P. voUenJioveni seem to indicate a distinct species and to justify 



its description as such. 



Mycteristes (Theodosia) telifer. 



Elongato-oblongus, aurescenti-viridis, elytris j)lanatisjiavesce7itibus. 

 S . Caput et thorax passim densissime confluenter punctulata sub- 

 opoca, hoc dorso subnitens punctulis suhdiscretis ; scutello et elytris, 

 pygidio, corpore subtus et pedibus subtilissime dense punctulatis, 

 sericeo-nitentibus : capite cornu sat brevi curvato, apiceprofunde 

 bifida parum dilutato, frontis margine supra antennarum basiii 

 angulatim producto ; thorace dorso oblique valde elevato et in 

 cornu porrectum elongatum robustum ajnce emaryinatum (sub- 

 bijidum) producto ; cornu dimidio apicali fronteque igneo-cupreis : 

 pedibus anticis, prcecipue tarsis, valde elongatis, tibiis extus 

 acute et breviter bidentatis {apicali incluso), tarsis glahris. 

 $ . Caput densissime ruguloso-punctatum, clypeo sparsim grosse 

 punctata, margine ante oculum indentato deinde antice Jiexuoso, 

 clypeo angustato apice bidentato : thorace disco sparsim grosse 

 umbilicato-punctato inter puncta subtilissime punctulato, late- 

 ribus densissime rugoso-punctato : scutello punctis nonnullis 

 grossis: elytris punctis umbilicatis, versus basin seriatis, versus 

 latera et postice densius vel con/usis : pygidio concent ricaliter 

 dense strigoso : tibiis anticis tridentatis. Long. 20-28 millim. 

 According to the practice of recent systematists a new genus should 

 he instituted for this species on account of the peculiar shape of the 

 horns in the male ; hut the abrupt modifications in these features 

 presented iu the known species allied to Mycteristes seem to show 

 that they form specific and not generic characters, just as they do 

 in such genera as Onthophagus, Phanceus, and Copris. Of the 

 numerous genera proposed, the present species approaches nearest to 

 Theodosia, Thoms. 



Coryphocera borneensis, "Wall. Tr. Ent. Soc. (3) iv. p. 528, 

 t. xi. f. 2 ( ? ). 



One (male) example, which I refer to this species on account of its 

 perfect agreement, in form and colour, with Wallace's description and 

 figure. From the armature of the head of the male the species belongs 

 undoubtedly to the genus Coryphocera and not to Biceros, as Mohnike 

 supposed would be found to be the case when the male was known. 



