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Mr, A. Murray on Coleoptera from Old Calabar, 47 
to say that a third species is known in collections under the 
name costata, Murray ; but I am now satisfied that the differ- 
ences are not specific, and that it is only a climatal variety. 
cannot agree with Prof. Lacordaire in placing this species 
e same genus as the preceding (D¢astellopterus). The 
different form of the thorax and the different facies of the whole 
animal seem to call for the erection of a different genus for 
each. Similar reasons lead me to preserve the genus Amphi- 
desmus of Serville for the Brazilian species of this type of 
Longicorns, instead of sinking it in Paristemia of Westwood as 
Lacordaire has done. I preserve that name for the West- 
African form, to which it was originally applied by our great 
English entomologist. 
- It appears to me, too, that the relations of affinity of this 
genus and its allies are greater with the Lepturide (Desmo- 
cerus &c.) than with any other group; and I have placed them 
accordingly where, thanks to Prof. Lacordaire, it seems now 
generally admitted that that group ought to be taken in. 
This is another instance of affinity between Brazilian and 
West-African species, 
CALLICHROMA, Latr. 
1. Callichroma afrum, auct. 
` Cerambyx afer, Linn. Mantis, Plantar. p. 532; Drury, iii. 1. pl. 89. fig. 4, 
—— ater, Fab. Syst. El. ii. p. 268. : 
Occasional, 
This species seems to range all along the coast from Senegal 
to Old Calabar, It belongs to a type which is especially cha- 
racteristic of Brazil and West Africa. The smallest species 
of the genus, and distinguished by the elytra rapidly attenu- 
ated behind, the light-green opaque elytra, bright golden 
suture, and red legs. — Callichroma assumes a number o dif- 
ferent forms and facies; and although it is impossible to find 
enerie characters by which to define them, the eye can 
easily detect and separate them. C. afrum and its allies, 
which follow, are of this character; and I claim them as in- 
stances of the extension of Brazilian species into Africa or of 
the converse. 
...9. Callichroma calcaratum, Chevr. Rev. et Mag. d. Zool. 
1856, p. 341. 
Affine C. albitarsi, attamen latius et. brevius, viridi-letum, 
nitidiore in marginibus thoracis suturaque ; palpis, antennis 
pedibusque ferrugineis, femoribus infra emarginatim calca- 
ratis et abrupte clavatis, posticis elongatis ; capite punctato, 
longitudine sulcato; thorace transversim plicato, angulose 
