158 ON COLEOPTERA FROM DUKE-OF-YORK ISLAND. [Feb. 20, 
dentate as in B. Wallacei. As to the general form of body, legs, and 
antennee there is no conspicuous difference. 
The species is allied also to B. una of White (New Hebrides), de- 
scribed from a 9 example; but in this latter the clothing of the 
elytra is quite unicolorous. One example. 
BATOCERA NEBULOSA, n. sp. (Plate XXIV. fig. 1.) 
B. gerstaeckeri (Thoms.) affnissima ; differt elytris fere equa- 
liter cinereo irrorato-nebulosis anguloque exteriore truncature 
apicalis nullo modo spinoso. Elongata, fusca, elytris subeneo- 
fuscis nitidis, tomento cinereo passim subplagiatim irroratis, 
basi dense tuberculatis ; thorace immaculato ; corpore subtus 
lateraliter albo vittato. 
3. Antennis corpore duplo longioribus, rugosissimis : articulis 
3-6. subtus denticulato-asperatis, apice haud spinosis: tarsorum 
anticorum articulis 1. et 2. extus spiniformiter productis. 
A species so closely resembling B. gerstaeckeri from Sula, that 
I should not have ventured to treat it as distinct, had not the many 
dozens of specimens compared showed a perfect constancy in the few 
points of difference. Most of the specimens are more or less abraded ; 
but in the many which have the pubescence intact, it is much more 
equally distributed over the elytra than in B. gerstaeckeri, and the 
subregular bare shining patches of the ground-colour of that species 
do not exist. In the abraded specimens the derm does not possess 
the glossiness which distinguishes B, gerstaeckeri. A constant 
structural peculiarity is the untoothed outer angle of the elytral 
truncature. The spinous prolongation of the anterior tarsi of the g 
is always seen on the first joint, but on the second only in large 
well-developed individuals. 
PERIAPTODES LUCTATOR, Pascoe, Trans. Ent. Soe. iii. ser. 3, 
p. 284. 
Several examples. The species was originally taken by Wallace in 
Ceran. 
GNOMA GIRAFFA. 
Cerambyz giraffa, Schreibers, Linn. Trans. 1801, vi. p. 198, pl. xxi. 
f. 8. 
Two examples, ¢. Much more robust in form than the same 
species from Ceram and Amboyna; but the elytra are granulated 
and punctured in the same way, and not smooth posteriorly as in the 
closely allied New-Guinea species Gn. ctenostomoides. 
EczEMOTES GUTTULATA, n. sp. (Plate XXV. fig. 4.) 
Oblonga, convexa, atro-fusca, tenuiter brunneo-pubescens, supra 
omnino subconfertim nitido-granulata; elytris guttulis ochraceis 
sparsim conspersis, apice brevissime truncatis ; subtus nigro- 
nitida, capite et sternis lateribus, tibiis autem extus fulvo- 
