1 Fup, 1900.] QUEENSLAND AGRICULTURAL JOURNAL. 141 
Tt is, how, i acking belated caterpillars that these ichneumons are 
Most Beeeriog “When the Theronias Ges from the bodies of their hosts 
ere are always a few caterpillars that have not as yet transformed to 
eitysalises, These, however, the female ichneumons search out with great 
Pettinacity, and so ultimately destroy. Their presence in numbers on 
Pasturages previously visited by caterpillars is often remarked by graziers, who 
r¢ led to question the significance of this phenomenon. This happened in the 
vise of the caterpillar plague at’ Rockville, Mombra, in 1896 (7. Nicholson). 
at. A, tieve, in the instance above quoted, drew attention to the fact that the 
chneumons that were hatching out under his observation were nearly all males— 
‘fact that subsequently received corroboration from the experience of the writer. 
tn this Instance, moreover, it did not appear that it was a case of protandry, as 
48 been noticed in the case of the related insect, Pimpla inguisitor, Say., by 
‘Y. Howard in the United States. ‘‘ With this species” he remarks (“Study 
1 Insect Parasitism,” page 13), ‘‘as with so many other parasitic Eamon grees 
© indeed as with so many other insects in general, there was a marke 
Phority in the issue of the males.” He then gives a tabulated statement showing 
heacutle P. inquisitor were appearing for seven successive days prior to the 
nergence of any female examples of the species. ; é 
8 this insect does not appear to have been described and is of Bree 
mic interest, the following technical description is appended to ensure its 
“ect identification :-— ' 
ace toni ru v.—Female : Red, four anterior segments of hindbody, deep bluish 
plack » ach Ae white spot on the side adjacent to the hind border, poring, a payarat 
mike al series. Wings, fuliginous the fore a aving oa Eu See TAT Rea: 
S the base ; antennze outwardly, tarsus of hind legs and oviposit b 
meet and glossy i impunctate. Head and thorax very faintly punctured. Head 
a lengthened, with nants vieattcnalse antenne situated in a broad shallow Soe i es 
hse pposite the origin of these ; vertex narrow with rather sudden soldi 4 tes 
tri rae Mesonotum without wrinkles ; scutellum convex with two lateral keels eng al ga 
bine lar Space ; meta-thorax wrinkled transversely, and with a central ridge ending ae 
ee tubercle beyond which it is obliquely truncated, two dorso-lateral euE Ruel se i 
Tasin of the hinder slope form a triangle with the preceding one, meta-thoracic spiracles o g g- 
ay 08, pale fuscous, with the stigma and veins black, the latter becoming paler Cot ate vs 
De & resent, four-sided the two transverse cubital nerves bounding its meeting on a . rod ra 
mid poxot hind legs very large, their femora eniceene pitas F tooth fee SECT Me yng fh 
» middle and hind tibix s urred, and with each two terminal spines, ys stout, § k 
rae wens Ist erusatenitns Perncatet anteriorly ; 2nd, 3rd, 4th, and 5th segments ea 
oberession immediately above the spiracles extending backwards and outwards ; pie , i i 
sot ete beyond the base; immediately above this impression, and in front of the ¥ UE aters 
tang 1e 2nd, 3rd, and 4th segments is a aM Beale eed: spot ae ‘t anne 
on the 2nd seg , oblong on the others; hind border of segments 6 - 
Landed excavation extonling farwiete half the length. Ovipositor, #th length of PRApan 
aul (excl, Ovipositor) 17 mm.; wing-expansion, 28 mm. Jfale: Sal po as pit 
female) S White-spotted, Ist having two on each side (therefore lateral series 6 instea 
* vertex except sides, and occiput except orbital border of eyes; sides of scutellum, 
frenum b > 
&cono 
lack ; scutellum and frenum with raised yellow border. 
Thi Evephanes leucanie,sp. nov. (Ichneumonide.) (Plate CLXXIV., Ee Bas 
ih tchneumon is a dark-coloured insect, measuring about ~,th inch long, aes 
Se band on the hind body; the feelers and legs red; also several white 
qk °n the thorax present. With regard to it, it may be affirmed that 
*t\dtions point to the conclusion that it does not occur in such numbers as 
{ other hymenopterous parasites described, but still it was met with on 
“he arling Downs in such numbers as to indicate that considerable sens a 
meh nng the increase of the caterpillar moth was being exerted by it. — th 
th “ence to its movements, it may be stated that it is a far less active insec 
ty 1s the more prevalent Red Theronia. Only male examples have been reared 
that Jictimised caterpillars ; but its systematic relations are sufficient evade? 
Mone consort will prove to have a relatively short ovipositor. Probably no 
Cato yt ® Single Exephanes grub reaches maturity within the Way of us 
been, illar host. "No species of Waephanes existing in Australia appears to z 
itherto described. It may be thus characterised :— 
Legg ft Evephancs le iv, sp.nov, Black; antenne (except two basal joints), labial palps, | 
; anda hept conte and fee ee ae all and special bands on hind legs), 2nd abdominal segment, 
ne; 
‘ath, basal 2 of costa and stigma of forewings horn-yellow to red ; frontand clypeus (except. 
