106 ILLUSTRATIONS OF SOME SPECIES OF 
Species VIII.—Rhagigaster analis, Westw. 
§ Niger nitidus, parum punctatus mandibulis antennisque piceis pedibus segmentoque 
apicali abdominis fulvis ; capite pone insertionem antennarum linea transversa in medio 
interrupta fulva. 
Long. corp. lin. 43. 
Habitat, apud “ King George’s Sound.’’ In Mus. Nostr. 
Obs. — Mandibule dente interno latiori at magis oblique-truncato nec acuto. Caput 
minus quadratum, abdomen ad basin paullo angustius longius, segmento ultimo oblongo-ovato. 
Species ? [X.—Bethylus apterus, Fabricius. Syst. Piez., 238. 
Q B. apterus niger pedibus rufis abdomine piloso nigro segmentorum marginibus ferrugi~ 
neis nitidulis. 
Habitat in Nova Cambria. D. Billardiere. 
Obs.—My notes made upon the Fabrician collection at Kiel, in which the typical specimen 
is preserved, state that this insect is a Myrmecodes. Its colours seem to indicate it as a female 
of this group. 
Srecies ? X.—Myzine ruficornis, Guérin. Prodrome d’une Monogr. des Myzines, p. 11, 
(Ext. Dict. Pittoresq. d’Hist. Nat. t. v.) 
¢ ‘ Téte noire avec le chaperon et les antennes fauves, thorax noir, ponctué avec le pro- 
thorax, trois taches sur le mésothorax et deux grandes taches de chaque c6té orangées. 
Ailes incolores, pattes orangées, abdomen orangé, avec la base des segments noire.” 
Long. 12 mill. 
Habitat, in Arabia ! 
Obs.—Cellula 1ma. submarginalis appendiculata. 
THYNNUS HYALINATUS, Wesitw. 
(Plate 74, fig. 3 g ; fig. 4 9.) 
d T. capite thoraceque fusco-eneis fulvo dense tomentosis metathorace flavo-vario, abdo- 
mine nigro nitido segmentis quatuor prioribus flavo-maculatis, alis fere hyalinis, pedibus 
testaceis. 
Long. corp. lin, 94. Expans. alar. lin. 184. 
? Ferruginea albido-pilosa, abdomine magis piceo, segmento Imo fascia integra flava, reliquis 
interrupte flavo-fasciatis. 
Long. corp. lin. 8. 
Habitat in Terra Van Diemenii, D. Lewis. In Mus. nostro, D. Lewisio amicissime com- 
municatus. ~ 
This species is very nearly allied to T. variabilis, but it is at once 
distinguished from that species by its uniform smaller size, the 
almost uniform colour of the thorax, and the nearly hyaline wings 
of the male. The head in this sex is neous black, closely and 
finely punctured, and clothed with short close fulvous pubescence ; 
the clypeus is yellow, which colour is extended along the anterior 
and posterior margin of the eyes, higher than the insertion of the 
antennze ; it forms also a slender branch behind the eyes. The 
mandibles are fulvous with black tips, the antennz black and 
slender. The thorax is slightly eneous black, finely punctured, 
and tomentose like the head, with a slender transverse yellow line 
behind the scutellum and the metathorax, with a large patch above 
