38 LEPIDOPTERA HETEROCERA 
Geographical distribution of species. — North American. 
Larva unknown. 
1. P. busckella, Ely, Proc. Ent. Soc. Wash, Vol. 12, p. 69 (1910). N. E. United States. 
3l. GENUS SITOTROGA, HEINEMANN 
Sitotroga, Heinemann, Schmett. Deutschl. (2), Vol. 2, p. 287 (1870). — Type : S. cerealella, Olivier. 
Characters. — Head smooth ; ocelli posterior; tongue developed. Antennae 3/4, in c simple, 
basal joint long, with pecten. Labial palpi long, recurved, second joint rough-scaled beneath, terminal: 
joint longer than second, slender, acute. Maxillary palpi very short, filiform, appressed to tongue. 
Posterior tibiae clothed with hairs above. Forewings with 1? furcate, 2 and 3 parallel, 7 and 8 out of 6, 
7 to costa, 11 from middle. Hindwings under r, elongate-trapezoidal, apex pointed, produced, termen 
emarginate, cilia 2; 3-5 remote, parallel, 6 and 7 stalked. 
Remarks. — A monotypic genus, specially interesting through the presence of the antennal 
pecten, which does not occur in any other genus of this group known to me; otherwise apparently allied 
to the two preceding. 
Geographical distribution of species. — This well-known and very destructive insect is 
probably North American in origin, but is now practically cosmopolitan except in colder climates, being 
artificially imported with its food. 
Larva feeding in stored grain (maize, rice, wheat, etc). 
Foodplants Gramineae, 
1. S. cerealella, Olivier, Encycl. Méth. Ent. Vol. r, p. 121 (1789). Europe, Asia, Africa, 
hordei, Kirby, Introd. Ent. Vol. 1, p. 172 (1815). America, Australia, 
arctella, Walker, List Lep. Het. Brit. Mus. Vol. 29, p. 635 (1864). New Zealand. Fiji : 
? coarctatella, Zeller, Hor. Soc, Ent, Ross. Vol 13, p. 353 (1877). 
melanarthra, Lower, Proc. Linn, Soc. N. S. Wales, Vol. 25, p. 416 (1900). 
palearis, Meyrick, Exot. Microlep. Vol. 1, p. 65 (1913). 
32. GENUs ACRAEOLOGA, MEYRICK 
Acraeologa, Meyrick, Ann. Transv. Mus. Vol. 8, p. 66 (1921). — Type: A. xerochroa, Meyrick. 
Characters, — Head smooth; ocelli small, posterior; tongue developed. Antennae 5/6, in c 
simple, basal joint very elongate, without pecten. Labial palpi very long, recurved, second joint 
somewhat thickened with scales, somewhat rough towards apex beneath, terminal joint longer than 
second, slender, acute. Maxillary palpi very short, filiform, appressed to tongue. Posterior tibiae shortly 
rough-scaled above. Forewings with 1» furcate, 2 from towards angle, 6 and 7 out of 8, 7 to costa, 
11 from middle. Hindwings under r, elongate-trapezoidal, apex long-produced, acute, termen rectan- 
gularly emarginate, cilia 2; 3-5 somewhat approximated, 6 and 7 long-stalked. 
Remarks. — Perhaps allied to the preceding. 
Geographical distribution of species. — South African, 
Larva unknown. 
1. A. xerochroa, Meyrick, Ann. Transv. Mus. Vol. 8, p. 66 (1921). 'Transvaal. 
