of the genus Euchroma. 291 
and at its attachments to the dorsal plate, so that it 
is capable of elevation and depression at its free ex- 
tremity. The cedeagus is received in a large corneous 
sheath, the apical half of which is divided into two 
elongate separated lobes. 
In the female the sixth ventral plate is very large, 
though it is concealed within the preceding segment ; it 
is densely punctate, and similar in form to the last 
external (that is the fifth) ventral plate, and, lke it, 
is more or less minutely notched at the extremity. There 
is no seventh ventral plate in the female. The form of 
the eighth dorsal plate in the female has been described 
above; there is a smaller ninth dorsal plate usually 
completely concealed under this eighth plate, but which 
can be exserted, and is sometimes visible in dried speci- 
mens. The ovipositor is not very large, and, to judge 
from a cursory examination of its structure, may prove 
homologous with the cedeagus and its sheath in com- 
bination. 
Buprestis gigantea, L. 
Colore varibilis, semper metallescente; coleopteris 
fortiter rugulosis, lateribus versus apicem integris, dente 
subsuturali parum prominulo. Long. 50—70; lat. 
£9——29 mm. 
g. Abdomine segmento dorsali octavo lateribus de- 
flexis, apice minute arcuato, arcus basi in medio triangu- 
lariter prominulo; cedeagi theca utrinque ad apicem 
setarum penicilla instructa; cedeago subtus usque ad 
apicem plus minusve distincte sulcato, vel canaliculato. 
?. Abdomine segmento 5° ventrali, apice in medio 
minute, plus minusve profunde emarginato, emargi- 
natione longitudine quam latitudine breviore. 
Buprestis goliath, Cast. et Gory. 
Colore variabilis, semper metallescente ; coleopteris 
fortius rugulosis, lateribus versus apicem serratis, dente 
subsuturali elongato. Long. 50—60; lat. 20—25 mm. 
3g. Abdomine segmento 8° dorsali lateribus deflexis, 
apice minute simpliciter arcuato; cedeagi theca absque 
setis ; cedeago subtus versus apicem nullo modo suleato. 
@. Abdomine segmento 5° ventrali, apice medio pro- 
funde ovaliter emarginato, emarginatione longitudine 
quam latitudine longiore. 
