LATHROBIUM. 537 
a dense confluent subobsolete punctuation. Thorax rather longer than broad, straight 
at the sides and scarcely narrowed behind, with numerous coarse punctures rather 
regularly distributed, except that there is a definite rather broad space along the 
middle impunctate. Elytra concolorous with the head and thorax, as broad as and 
slightly longer than the latter; the punctuation almost similar to that on the thorax, 
the pubescence scanty but distinct. Hind body unicolorous, more pallid than the 
anterior parts, densely and finely punctate. ; 
The male has a deep, broad emargination with rounded front on the last ventral 
segment ; the preceding plate is vaguely impressed along the middle, more distinctly at 
the base than behind, and the plate before it is also impressed. 
This is allied to the Amazonian LZ. parallelum, Sharp, but is considerably smaller, 
and the male characters are very different. Only one example was obtained. 
2. Lathrobium mexicanum. (Tab. XIV. fig. 1.) 
Parallelum, testaceum, prothorace pallide rufo, capite nigricante; hoc oblongo, crebre fortiter punctato; illo 
crebre fortiter punctato, medio longitudinaliter leevigato; elytris seriatim subobsolete punctatis. 
Long. 43 millim. 
Hab. Mexico, Cordova (Saiié). 
_ Antenne slender, the second and third joints elongate, the latter rather the longer. 
Head quite as broad as the thorax, coarsely and rather closely punctate, the punctures 
more distant on the disc, closer at the hind angles, where the surface is subopaque. 
Thorax longer than broad, the sides straight, a little narrowed behind ; each side rather 
coarsely and numerously punctate, a broad space along the middle impunctate. Elytra 
a good deal longer than the thorax ; their punctuation obsolete, especially behind, but 
regularly and serially arranged. 
Of this species we have received but one example, a female: it is allied to the 
Amazonian L. minor, Sharp, but has a much coarser punctuation on the head. 
3. Lathrobium clandestinum. 
Parallelum, fusco-testaceum, capite prothoraceque nigris, elytris rufo-testaceis ; capite suborbiculari, disperse. 
fortiter punctato; prothorace crebrius fortiter punctato, medio longitudinaliter levigato; elytris hoc haud 
longioribus. 
Long. 73 millim. 
Hab. Guaremata, Torola 1000 feet (Champion). 
Antenne infuscate red, the base more dilute; third joint longer than the second. 
Head black, very shining, scarcely so broad as the thorax, the hind angles rounded, 
coarsely punctate, the discoidal portion almost free from punctures. ‘Thorax longer than 
broad, shining black, with numerous coarse punctures, a broad space along the middle 
impunctate. Elytra pallid red, shining, about as long as the thorax, with a rather 
sparing, moderately coarse but not very definite punctuation which at the base is sub- 
BIOL. CENTR.-AMER., Coleopt., Vol. I. Pt. 2, June 1886. 3 ZZ 
