234 
PERIPTYCTUS (gen. nov.). 
Caput modicum, antice minus elongatum; labrum antice late 
rotundatum ; palporum maxillarium articulus ultimus ovalis, 
labialium crassus; antenne sat graciles, quam corporis 
dimidium breviores, 1]l-articulate, articulo basali fortiter 
dilatato, 2° multo longiori ét multo graciliori, 3° 4° que 
minutis, 5° elongato (quam precedentes 2 conjuncti longiori), 
6° minuto, 7° paullo longiori, 8° minuto, 9°-11° clavam 
elongatam (quam 5°*-8"* conjuncti sublongiorem) formantibus, 
11° ad apicem truncato; oculi sat grosse granulati; pro- 
thorax transversus, a basi antrorsum angustatus, antice sat 
emarginatus, intra marginem brevi distantia obtuse carinato, 
mox intra carinam profunde longitudinaliter concavo, ad 
basin haud sulcato; elytra ovalia, ad basin vix quam pro- 
thorax latiora ; scutellum fortiter transversum ; prosternum 
antrorsum (ut Zlateridarum) valde elongatum ad oris recep- 
tionem elongatum, inter coxas latum, postice productum, ad 
apicem truncatum, inter coxas et in parte postica utrinque 
subtiliter carinatum; mesosternum latum antice declive; 
abdominis segmentum basale ceteris conjunctis longitudine 
eequale ; pedes sat graciles; tarsi subtetrameri, articulo 2° 
modice elongato ; unguiculi simplices ; corpus setis subtilibus 
sparsis sat elongatis vestitum. 
I do not know of any previously described genus of 
Endomychide in which the prosternum is produced anteriorly as 
a “chin piece” to cover entirely the mouth organs in repose, 
although the character is by no means wanting among the Aus- 
tralian Coccinellide. The nearest approach to it that I can find 
in an Endomychid is in the diagnosis of Cremnodes where the 
prosternum is said to be “ prolonged towards the mouth.” The 
present species however could not well be placed near Cremnodes ; 
working by Dr. Chapuis’ tabulations of Endomychide one would 
have to place it in the Lycoperdinites beside Coniopoda. Its 
antenne are almost as peculiar structurally as is its prosternum. 
P. russulus, sp. nov. Ovalis; minus convexus; brunneo-rufus, 
prothoracis disco infuscato; sparsim sat subtiliter punctu- 
latus, puncturis in elytris subseriatim dispositis. Long., 1 1.; 
Jat., 3 1. : 
Victoria; on a small fungus in rotten wood in the Alpine 
District. 
IDIOPHYES (gen. nov.). 
Caput modicum, antice minus elongatum ; labrum antice late 
rotundatum; palporum maxillarium articulus  ultimus 
elongatus sub-cylindricus ad apicem acuminatus, labialium 
magnus subquadratus; antenne quam corporis dimidium 
