20. 
21. 
22. 
24. 
25. 
26. 
27. 
28. 
29. 
30. 
31. 
32. 
33. 
INSECTS AFFECTING STORED PRODUCTS, 
BOSTRYCHID.E. 
Dinoderus truncatus Horn...... 
Larger grain borer. 
Rhizopertha dominica Fab..... 
Dinoderus dominica Fab. 
Dinoderus pusillus Fab. 
Rhizopertha pusilla Fab. 
Lesser grain borer. 
Detertol bd) gh) Vee eee eee 
White-marked spider beetle. 
. Ptinus brunneus Dufts...........-. 
Brown spider beetle. 
Niptus hololeucus Fald.......-. 
Gibbium psylloides Czem....... 
Gibbium scotias Fab. 
Sitodrepa panicea L..........-- 
Anobium paniceum lL. 
Drug-store beetle. 
Lasioderma serricorne Fab... .. 
Lasioderma testaceum Dufts. 
Cigarette beetle. 
Catorama punctulata Lec....-- 
Catorama zese Waterh........-. 
Tricorynus zex Waterh. 
Chittenden: Insect Life, Div. Ent., U.S. 
Dept. Agr., vol. 7, p. 327, 1895. 
Breeds in corn and edible tubers. 
Injurious to cereals in kernel; breeds in 
corn, rice, wheat, and in other hard sub- 
stances containing starch. 
PTINID. 
Bul. 4, n. s., Div. Ent., U.S. Dept. Agr., 
p. 127, 1899. 
Injurious to flour, crackers, seeds, etc. 
-Occurs in same situations as the above, and 
as its habits are practically identical it 
probably feeds also on cereals. 
Fitch (Powers): The Entomologist, vol. 12, 
p. 46, 1879. 
In ‘‘corn meal;’’ common in granaries in 
Europe. ‘ 
Schwarz (unpublished). 
In stale bread in a bakery at Washington, 
D. C.; in storehouses, etc. 
Bul. 4, n. s., Div. Ent., USS? Dept Aere 
pp. 124-126, 1899. 
A general feeder. 
Bul. 4; n. s., Div. Ent., U.S. Dept. Agr: 
p. 126, 1899. 
Habits similar to above; observed to breed 
in rice, yeast cakes, fish food, ete. 
Quaintance: Bul. 36, Fla. Agr. Exp. Sta., 
pp. 381-382, 1896. 
In corn, corn meal, flour, etc. 
Trans. Ent. Soc. London, vol. 5, Proceed- 
ings, p. Ixviii, 1847-1849. 
‘Attacking the grain of the common 
maize.”’ 
TENEBRIONIDZ, 
Tenebrio molitor Wiese... ee 
Yellow mealworm. 
Tenebrio obscurus Fab............- 
Dark mealworm. 
Tenebrio tenebrioides Beauv 
Tribolium confusum Duy.........-. 
Tribolium ferrugineum auct. 
Confused flour beetle. 
Farmers’ Bul. 45, U. S. Dept. Agr., pp. 
14-15, 1897. 
Injurious to ground cereals, . especially 
when stale. 
- Farmers’ Bul. 45, U. 8. Dept. Agr., p. 15, 
1897. 
Infests ground cereals. 
Unpublished. 
.Farmers’ Bul. 45, U. S. Dept. Agr., pp. 
11-12, 1897. 
A general feeder, injurious to cereals in 
every form. 
