BY WILLIAM MACLEAY, JUN., ESQ. 79 



Genus Phyllotocus, Fisch. (Mem. des Nat. de Moscou, t. 

 VI. p. 255.) 



Macrothops, MacL. Drj. Boisd. 



Aniennce breves, articulis novem, basilar! magno apice incrassato 

 setoso, 2° subgloboso, 3° obconico, 4° — 6° pateriformibus, 

 7° -9° lamellatis. 

 Labrum inconspicuum. 



Mandibulce membranace£e, clypeo occultatte. 

 Maxillce lobo externo parvo membranaceo penicillato, interno 



dentiformi aut nullo. 

 Palpi Maxillares artieulo basilar! brevi, reliquis clongatis 



sub-sequalibus. 

 Palpi Labiates breves artieulo ultimo longiori subtruncato. 

 Labium membranaceum bilobatum liirtum. 

 MentuTYi elongatum valide setosum apice plerumque emargina- 



tum. 

 Caput parvum. elongatum apice anguslatura subrotundatum, 

 suturis duabus transvei'salibus una clypeum a front e 

 dividente, altera subapicali. 

 Corpus convexum ovatum, pygidio triangular!. 

 Pedes elongat! graciles spinosi tibiis anticis extus tridentatis. 

 Mas. ungue pedum anticorum interno tarsisque iuterdum 

 tumidis. 

 I have never seen the characters given by Fischer to this 

 genus ; indeed, the only description I have seen is that given in 

 the Gen. Coleopt. III. p. 201, of Lacordaire, and I find that in 

 some points the description given above differs from his. He makes 

 the antennae 8-jointed, whereas I find them to be 9-jointed ; he 

 makes the mentum truncate at the apex, whereas it !s almost 

 uniformly emarginate ; he makes the last joint of the labial palpi 

 to be a short oval, whereas I have generally found it an oblong 

 oval, and always the longest of the three joints ; while the max- 

 illary palp! are certainly not truncate at the apex as he states, 

 and least of all in the section of which P. MacLeayi is the type, 

 which is the insect on which the genus was founded. I have 

 also been unable to discover the difference mentioned by La- 



