ILLUSTRATIONS 
PLATE. 
Page. 
Plate I. Blackeye cowpeas infested by the cowpea weevil (Pachymerus 
chinensis), showing eggs and exit holes 86 
TEXT FIGURES. 
Fig. 1. The Mexican grain beetle (Pharaxonotha Jrirschi): Adult, larva, pupa, 
details 8 
2. The Siamese grain beetle (Lophocateres pusillus): Adult, larva, pupa, 
details 14 
3. The broad-nosed grain weevil (Caulophilus latinasus): Adult and 
details • 19 
4. The broad-nosed grain weevil: Work in seed of avocado (Per sea gratis- 
sima) 20 
5. The long-headed flour beetle (Lathelicus oryzx) : Adult 26 
6. Latheticus prosopis: Adult 26 
7. The lesser grain-borer (Rhizopertha dominion): Adult 30 
8. Section of horse collar showing holes bored by the lesser grain-borer. . . 34 
9. The larger grain-borer (Dinoderus truncatus): Adult, larva, pupa, 
details 50 
10. The larger grain-borer: Kernel of corn showing characteristic work of 
adult, or beetle 51 
11. The broad-bean weevil (Laria rufimana): Adult, or beetle 60 
12. The pea weevil (Laria pisorum): Beetle, larva, and pupa 60 
13. The broad-bean weevil: Photomicrograph of egg 61 
14. The broad-bean weevil: Egg 61 
15. The broad-bean weevil: Apical crest of head of postembryonic larva. . . 61 
16. Broad beans infested by the broad-bean weevil, showing empty exit 
holes of beetles, closed exit holes, and open exit holes in which 
beetles are still present 70 
17. Broad beans split to show ravages made by larvae of the broad-bean 
weevil above, and by larvae and adults below, the latter leaving 
large pupal cases at the ends of the beans 71 
18. Bioad bean cut in half to show, at top on left, pupal cell of the broad- 
bean weevil; at right, cell containing predaceous mite (Pediculoides 
ventricosus) 73 
19. Pediculoides ventricosus: Gravid female 73 
20. Fumigator used for stored products infested by insects 79 
21. The cowpea weevil (Pachymerus chinensis): Male beetle, egg, larva, 
and details 84 
ERRATA 
Page 30, line 19 from bottom, for pusillus read pusillum. 
Page 87, line 22 from bottom, for larv read larvse. 
