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Semanopterus. Although it is difficult to believe that Burmeister 
could have placed this insect in the genus Scapanes I may say 
that the description of S. solidus, Burm., reads much like a de- 
scription of its female, examples of which not rarely present the 
peculiar coloring he attributes to S. solidus. 
A. subequalis (? Hope). Late subovatus; colore variabilis 
(nigro-piceus, piceus, vel rufescens) ; subtus rufo-hirtus ; sat 
nitidus ; fortiter convexus; capite transversim sat crebre 
rugato, tuberculo valido brevi armato; prothorace quam 
longiori paullo plus quam sesquilatiori, postice quam antice 
ut 12 ad | Jatiori, antice excavatione sat magna minus pro- 
funda (hac intus squamose sat grosse punctulata) et postice 
excavatione purva ovali (hac intus fortiter punctulata) im- 
presso, lateribus minus rotundatis, subtilissime (antice 
crebrius, postice sparsim) purctulato, angulis anticis acutis 
sat productis posticis rotundato-obtusis ; scutello basin ver- 
sus punctulato ; elytris subtiliter punctulatis, puncturis ut 
series 8 geminatim dispositis, interstitiis haud vel vix 
convexis inter serierum paria ut series (sed confuse sparsim) 
punctulatis, parte apicali confuse magis fortiter punctulata ; 
pygidio fortiter gibboso. 
Maris pygidio longitudinaliter leviter sulcato, sparsim subtiliter 
ad basin crebre subtilissime) punctulato ; segmentis ventrali- 
bus (basali et apicalis parte basali crebre rugulosis exceptis) 
nitidis transversim uniseriatim punctulatis. 
Femine pygidio grosse squamose ruguloso, fulvo-hirto; seg- 
mentis ventralibus (apicali quam cetera magis crebre) 
squamose sat grosse rugulosis. 
Australia ; widely distributed. 
SEMANOPTERUS. 
This genus is placed by M. Lacordaire provisionally among the 
Phileurides on account of the general resemblance of Hope’s 
figure to the appearance of a Phileurus. The labial palpi of 
Semanopterus are inserted low down on the sides of the mentum 
in such fashion that their basal joint is very little visible from 
above ; nevertheless I cannot satisfy myself that the genus ought 
to be very widely separated from Cheiroplatys and its allies. The 
following characters in combination distinguish Semanopterus 
from the other known Australian Dynastides,—viz., Prothorax 
with two excavations in both sexes, hind tibize with apical! cilie, 
basal joint of hind tarsi not excessively dilated at apex, club of 
antennee not extraordinarily developed in the male, three external 
teeth on the front tibix, one of the two apical spines of the hind 
tibize inserted more or less behind the base of the tarsus, mentun: 
not of the compressed type, head armed with a blunt tubercle in 
