Ceylon Coleoptera, fyc. 79 



in the notch which exists in that part of the paraglossae of my 

 g. Megaristerus. Also allied to Acupalpus the sculpture of 

 the tarsi being exactly the same ; in saying which I bear par- 

 ticularly in mind that the intermediate ones of the male are 

 hardly dilated. From this g. however, it is effectually distin- 

 guished by the shape of the ligula. From both Amblystomus 

 and Acupalpus, the present g. moreover differs in the vesture 

 of the four ant. tarsi of the male, the first joint being naked below, 

 and in the mandibles the left one of which is much larger and 

 plumper than the right one, protruding from under the labrum, 

 whilst the latter is hidden by it, the former is at the same 

 time obtuse at the apex whilst the latter is pointed. In the 

 M. Indicus this peculiar construction is hardly striking, but in 

 the other two species it is very much so, and imparts a curious 

 appearance to the head of the insect. 



64. Megaristerus mandibularis. N. 



M. piceo-niger leviter metallescens, subtus brunneus, antennis, tibiis 

 tarsisque testaceis, ore brunneo ; long. corp. 1^-2 lin, 



Capite inter antennas 2-foveolato, mandibula sinistra robustissima por- 

 recta, dextera mediocri labro obtecta; thorace basi 2-foveolato, linea 

 longitud. utrinque abbreviate media diviso, antice lunate impresso ; 

 scutello majore ; elytris obsolete striatis, striis juxta suturam distinctior- 

 ibus, cum thorace parce subtiliterque punctulatis, inter med. et apic. ad 

 striam 2 m puncto impresso. 



Prope Colombo rarus. 



65. Megaristerus stenolophoides, X. 



M. brunneo-piceus elytiis obscurioribus metallescentibus maculis 4 

 flavis, margine suturseque apice brunneis, pedibus, antennarum basipal- 

 porumque apice pallide testaceis, ore, mandibulis brunneis exceptis, 

 testaceo ; long. corp. 1^ lin. 



Preecedenti similis corpore robustiore minus depresso et colore facile 

 tamen distinguendus. Differt prseterea palpis max. art. 4o minus dis- 

 tincte, lab. eodem fortius truncato ; thorace magis transverso basi ob- 



