4G0 Longicornia Mulayana. 



falling into slightly striated lines, wlijoh, however, disappear to- 

 wards the apex ; on each elytron, before the middle, a dull, but 

 perfectly distinct, round, whitish spot, and each apex obliquely 

 truncate outwards, but not mucronate ; body beneath, legs and 

 antennae chesnut, with a very thin pile, the antennae only a little 

 longer than the body. 

 Length 4^ lines. 



Tmesisternus. 



Tmeshternus, Latreille, Reg. An. v. 121 (1829), non Serville 



(1833). 

 Ichthyosomus, J. Thomson, Ess. &c., p. 358. 



Caput mediocre, porrectun), antice transversum, in medio sul- 

 catum ; clypeo truncate, vel bisinuato. Oculi profunde emar- 

 giiiati (quasi divisi). Antennce corpore breviores, varo paulo 

 longiores, setacea;, basi distanies; scapo apicem versus cras- 

 siore ; articulis tertio et quarto subaequaiibus ; cseteris bre- 

 vioribus. Prvtiiorax brevis, vel aliquando modice elongatus, 

 utrinque bidentatus, baud margin itus, apice truncatus, basi 

 bisinuatus, lobo mediano truncato. Elytra saepissime ob- 

 longo-ovata, humeris rotundata, apicibus truncata vel emar- 

 ginata, basi sub-lobata. Femora valde incrassata fusiformia ; 

 tibii^ plerumque graciles ; tarsi modice dilatati, antici vix 

 breviores. Prostcrnuin postice productum, in incisuram 

 mesosterni receptum. Abdomen segmento ultimo apice bi- 

 spinoso. 



Latreille gave a very short description of this genus, but con- 

 sidering the few genera then recognized, one sulficiently dis- 

 tinctive. None oi the species were at that time published, but, 

 in a note, they were said to have " great affinity to Callidinm 

 variegntum, Unealiim, anil sulcatitni of Fabricius." By son)e over- 

 sight Serville (Ann. Soc. Ent. Er. iii. 72), quoting Latreille for 

 the genus, refers to it the three species which its author con- 

 sidered to be only its allies. Moreover, Serville's first character, 

 anil the essentially diagnostic one, the prothorax lobed poste- 

 riorly, does not apply to the first species he quotes, C. variegntum, 

 now the type of Coptomma, Nevvm. How little Serville un- 

 derstood the genus is shown by his having placed it between 

 Listroptera and Deilus. 



