144 FURTHER ILLUSTRATIONS OF 
Species Unica. ENTELES BICOLOR, Westw. 
(Plate 82, fig. 1.) 
Th. (Ent.) niger, mandibulis thorace et pedibus rufis 2. Long. corp. fere lin. 4. 
Habitat King George’s Sound. Mus. Westwood. 
The head is black and punctured; the mandibles red, and not 
bearded beneath: they are entire along the inner margin. The 
antennz are short and black; the thorax is strongly punctured 
above, as is also the abdomen, which is entirely black, except the 
terminal deflexed segment, which is pitchy-red at its extremity. 
All the segments haye a carinated stria across, near the hinder 
margin, and the second segment is also marked with five or six 
similar strize across its disc. The apical segment is obtusely trun- 
cate, deflexed, and longitudinally striated, emitting the aculeus 
from its lower extremity. The legs are red, robust, and apparently 
formed for burrowing. 
EIRONE, Westw. 
Mas, alatus. Labrum ciliatum clypeo haud absconditum. Mandibule intus dente subapicali 
instructee (pl. 82, fig. 5 @). Maxille, lobo apicali in duas partes haud diviso, palpi perfecti 
6-articulati (fig-5 5). Palpi labiales, 4-articulati articulis sensim decrescentibus (fig. 5 ¢) 
abdomen elongato-ovatum apice integrum haud spinosum (fig. 5 e). Alarum vene ut in 
Thynnis disposite vena spuria in cellula 1ma submarginali fere obliterata. Pedes graciles 
unguibus apice bifidis (fig. 5 d). 
Femina, aptera. Caput oblongum planum; oculi laterales, fere ad angulos anticos positi. 
Ocelli O. Antenne fere in margine antico capitis affixee (fig.6 a) convolute. Labrum 
clypeo haud absconditum setosum. Mandibule (fig. 6 a) dente interne fere ad apicem 
instructs, parum curvate et vix setose. Maxille parve palpis gracilibus 4-articulatis 
articulo lmo minimo (fig.6 6). Mentum ovale compressum. Labium omnino retractum, 
palpi labiales 4-articulati (fig. 6 ¢) articulo ultimo longiori. Thorax depressus oblongus 
3-partitus, mesothorace parvo; abdomen elongatum depressum apice aculeo exserto 
instructum (figs. 6 f, 6g). Pedes ut videtur fossorii, tibiis anticis crassis bicalcaratis 
tarsi antici articulo basali curvato curvatura serie spinularum depressarum instructa 
(fig. 6 d). Ungues basi dilatati (fig. 6 e). 
Sprcres Unica. EIRONE DISPAR, Westw. 
(Plate 82, figs. 5 4,6 9.) 
Mas. E. Niger nitidus punctatus alis limpidis. Long. corp. lin. 42. Expans. alar. lin. 7. 
Femina. Fulvescens tenuissime punctata. Long. corp. lin. 23. 
The great diversity between the two insects represented in 
Plate 82, figures 5 and 6, and the similarity of the winged indi- 
vidual to the male Thynni, and of the apterous one to the genus 
Scleroderma, would have made me hesitate in publishing them as 
the sexes of one species, were I not convinced that entire reliance 
might be placed on the observations of Mr. Fortnum, by whom 
they were collected at Adelaide, in Southern Australia, and for- 
warded to Mr. Hope, during the present year. 
