HOLISUS. 463 
Hab. Panama, Bugaba (Champion). 
Very closely allied to H. protensus, and distinguished, so far as I can see, only by the 
slight characters mentioned in the diagnosis, and the less stout antenne; the most 
important of the distinctions is the finer and closer punctuation of the wing-cases. 
8. Holisus solskyi. 
? Holisus ater, Solsky, Hor. Soc. Ross, v. p. 141' (nec Motsch.). 
Depressus, niger, nitidus; pedibus piceis, capite oblongo-quadrato, crebrius fortiter punctato ; elytris crebrius 
minus subtiliter punctatis, apicem versus picescentibus ; abdomine fortiter punctato. 
Long. 6 millim. 
Hab. Mexico !, Cordova (Sallé). 
This is extremely similar to H. protensus, but is readily distinguished by the greater 
number of punctures on the head and thorax; on the former these are so numerous that 
the medial triangular space is only indefinite, while those on the front part are not recog- 
nizable as forming three patches; there is no channel on the base of the thorax behind, 
and this segment is longer and narrower than it is in H. protensus. The metasternum 
is channelled but not foveolate behind. 
Three examples have been obtained. The present species is certainly not the 
Piestomorphus ater, Motschoulsky; that species is found in Colombia, and our insect 
does not agree with Motschoulsky’s description. Although Solsky’s record of H. ater, 
Motsch., as a Mexican insect is probably erroneous, yet it is possible that he may not 
have referred to the present species; but in the absence of any indication of the 
occurrence of a second species in Mexico, we naturally treat his record as referring to 
the one known. 
4. Holisus prolixus. (Tab. XII. fig. 9.) 
Depressus, nigerrimus, nitidus; pedibus piceis, capite subquadrato, crebre fortiter punctato; thorace brevi ; 
elytris crebre subtiliter punctatis. 
Long. 63-7 millim. 
Hab. Guatemata, Cahabon, and San Jian in Vera Paz (Champion). 
Of slender, elongate form, with the hind body gradually narrowed towards the apex. 
The head is very shining and its punctures are coarse, and consist of a large patch on 
each side behind, and three smaller patches on the front; the anterior of these is on 
the middle of the front, and consists of three closely placed punctures. The thoracic 
punctures are coarse but not numerous; and the punctuation of the elytra and hind 
body is not coarse, and is moderately close; on the under surface of the latter it is 
denser and coarser. 
This is very closely allied to H. protensus, but is smaller and more slender, and the 
punctures on the head are less numerous. Four examples were met with. The one 
figured is a female found at Cahabon. 
