LONGICORNIA. 845 
Pterichthya furculicauda (p. 110). 
To the Guatemalan localities given, add :—Las Mercedes, El Tumbador, Cerro Zunil, 
Volcan de Atitlan (Champion). 
4. Pterichthya obliqua. 
P. pisciformt proxime affinis, sed differt corpore magis lineari, antennarum articulis 6°-10"™ griseo-annulatis, etc. 
Aineo-fusca, toto tenuiter ochraceo-fusco pubescens, nigro-fusco piperita, vertice vittis duabus, thorace 
tribus, fulvo-ochraceis; elytris utrinque vittis duabus obliquis parallelis, cinereis, prima (nec humerum 
nec marginem attingente) ante, secunda post, medium; thorace cylindrico dorso confertim grosse punctato ; 
seutello ochraceo; elytris apice extus paullo minus prolongatis, angulo suturali spinoso; confuse, versus 
basin grossius, punctatis. 
Long. 4 lin, 
Hab. Mexico (coll. Bates). 
Received from M. Deyrolle with the name of P. pisciformis, Thoms., but evidently a 
different species. 
PTERICOPTUS (p. 111). 
Ptericoptus caudalis (p. 111). 
To the locality given, add:—Muexico, Cerro de Plumas (Hége); Guatemaa, Las 
Mercedes, Pantaleon, San Isidro (Champion). 
The single specimen described proves to be a colour-variety of the species, in which 
the irregular blackish markings of the disc of each elytron are much developed in 
darkness of colour and in extent. In all the other examples subsequently received the 
elytra are pale ochreous-brown, with a sutural vitta (extending from the base to a little 
beyond the middle) and a curved oblique subapical spot (not reaching the suture) 
velvety black; the ochreous disc of the elytra is variegated (especially behind the 
middle) with faint dusky spots and streaks. 
Ptericoptus panamensis (p. 111). 
To the locality given, add :—Panama (Boucard), Volcan de Chiriqui (Champion). 
In most examples the elytra have on each side near the apex a curved black spot 
which does not extend towards the suture as in the specimen which served in 
originally describing the species. The antenne are much shorter and thicker than 
in P. caudalis. 
4, Ptericoptus fuscus. | 
P. griseolo affinis, sed multo major elytrisque utrinque macula anteapicali curvata nigro-velutina. Fusco- 
ochraceus, vertice maculis triangularibus binis, thorace vittis dorsalibus duabus approximatis ; elytris vittula 
suturali abbreviatissima prope scutellum, maculaque curvata utrinque apicali, fusco-nigris; elytris disco 
obscure fusco variegato, capite et thorace vitta laterali obscure fusca; elytris apice fere recte truncatis, 
BIOL. CENTR.-AMER., Coleopt., Vol. V., May 1835. 2y 
