Bulletin - United States National Museum

MICROLEPIDOPTERA OF PHILIPPENTE ISLANDS 65
The species (under the name B. truculenta) is recorded to be of
peculiar economic importance as it is a useful pest of the weed "nut
grass" (Cyperns rotundus), in the stems of which the larvae bore.
In the years 1922-1926 the species was introduced from the Philippine
Islands to Hawaii, where it became established. Later followed
introductions to the Fiji Is. and Australia. The measure, however,
was not a great success, apparently due to parasites which affect
eggs and larvae of B. venosana.
Bactra {Chiloides) orbiculi minax Diakonoff, 1964
Figures 80, 538
Bactra (Chiloides) orbiculi minax Diakonoflf, 1964, Zool. Verb., no. 70, p. 51,
figs. 45-47 (cf, Luzon).
Distribution: Philippine Is., Luzon.
Material examined: Luzon, Benguet, Klondyke, 800 ft., 9.V.1912
(A.E. Wileman), 1 cT, holotype, genit. slide 5529 (BM). The nominate
form occurs in East and South Borneo. The present subspecies
differs by the stronger armature of the valva.
Subgenus Nannohactra Diakonoff, 1956
Bactra (Nannohactra) phaulopa Meyrick, 1911
Figure 537
Bactra phaulopa Meyrick, 1911, Proc. Linn. Soc. New South Wales, vol. 36, p.
253 (9, Kei Is.).—Diakonoff, 1950, Bull. British Mus. Nat. Hist., Ent. ser.,
vol. 1, p. 288, pi. 8, fig. 42 (lectotype selected, genitalia figured).
Bactra (Nannohactra) phaulopa.— Diakonoff, 1956, Zool. Verh., no. 29, p. 52,
Is.,
figs. 50-51; 1964, op. cit., no. 70, p. 77.
Distribution: Java, Sumatra, Celebes, Kei Is. North Moluccan
Philippine Is.
Material examined: Luzon, Manila, XII. 1945 (CNHM Phihppine
Zool. Exped. 1946^7, H. Hoogstraal) , 6cf, genit. slides 5761, 5762
(CNHM).
BubonoxenUf new genus
Head with roughly appressed scales forming a small tuft on forehead,
face smooth. Antenna in male slightly thickened and serrulate,
pubescent. Ocellus posterior. Proboscis very short. Palpus subascending,
basal segment roughish, median segment moderately long,
slender anteriorly, abruptly and strongly dUated and triangular
posteriorly, rough along apex,
terminal segment slender, subobtuse,
moderate. Thorax without a crest. Ilindtibia normal.
Forewing elongate, rather narrow, apex subobtuse, termen gently
rounded, oblique.
Vein 2 from 3/5, 3 from angle, 3 to 5 moderately