228 



Seed gii:i\vi"(l, suix-rliiMally itciict rated, or liorrd ihnmuli, l)y long, r\\u\ 

 drical, siuootli, liaril larva', yollowish while to I'liestnut-brown, hall' an 

 incli to al)()Ul an inch in length, willi tliree |)air.s of distinct, short legs 



just l);(ck ol' the liead (PI. VL, Fig. 2-5) ._ 



Wirowornis, Eighteenth Report, [). 2S 



Seed gnawed by eylindrieal, very many-jointed and many-leggod worm- 

 like creature, with a distinct luvid, hard crust, and generally lunwii 



coUu-. C'vu'ls up into a tUsk or coil when disturbed 



Thousand-legs {M i/ridpodn), p. 222 



The kernels gnawed Iroiu without by beetles, injury conuuonly begimiing 

 at the germ. -^ 



Seed injured bv footless whitish maggots which burv them.-^elves in tiie 

 kernel. . . . ' 



Seed gnawed or boreil tln-ougli l)y .soil larva' al>out a t'oiu'lli ol an iiicii long, 

 with thri'e distini't pairs ol" short legs just back of tlie liead. I'upa 

 with fnH> wing-pads. Adult a beetle. •"> 



Seed injiu-ed by small ants which hollow out the kernel 



Solcnapsif; dvhilis, Eighleentii Ueport, pp. !), (id 



M i/nnica ficahn'uddit^ lohicornis. Kiiihivvnth Report, jip. 11, (Hi 



A small yi'llowish beetle, head darker, thorax and wing-covei-s blacki.sh cen- 

 trally {(jonodirus paUipcs, I'^ighteenth Report, p. 12 



.\n elongate imifonnly dark reddish beetle with neck-like separation of 

 thorax and abdomen. C'livina iniprcssifrons, iMghteenth Report, ji. 1") 



.\ small, sluggisli dung-beetle, cylindrical, short, and black 



Aphodiiifi tiraiKtrius, Eighteenth Report, ]->. 14 



A large, h(>avy, ilark beetle, closely resembling a June-bug, eating the 

 germ of the planted kernel and the young shoot . J.iiij/rufi fiibbosiis, p. t)S 



A fleshy niaggt)t about a fom-th of an inch in length, tapering to the front 



but with distinct head; posterior end blunt 



Seed-corn Maggot, p. 70; also Eighteenth Report, p. Ki 



A cylinilrical, smooth, white, thicidsh larva about a third of an inch long, 



wit h distinct black head 



Hlack-headed Grass-maggot, Eighteenth Ke|)ort, ]i. 1!) 



A slender, yellowish, worm-like larva, thickening slightly backwards and 



ending in .a rounded point 



P;de striped Mea-beetle, p. 107, and Eighteenth Report, p. 21 



A rnther broad and short llattish larva with short, wide joints, sides with 



a row of blunt })oints, ending in two short forked spines 



Ips qiiadriguttatiis {f(isci(duf<). Eighteenth Report, p. 2.S 



Hoots eaten away, not burrowed or perforated, and without rotten or 

 withered tips. Tap-root commonly eaten off. Largi^ white grubs in soil 

 among or beneath roots. The White-grubs, I'aghteenth Report, ]>. 109 



Hoots deficient, oft(>n withered at tips or dried up. Not visilily penetrated 

 or ])erforated from without. I'rincipal injury interior to the root in the 

 form of a minute longitudinal burrow usually containing a small, slender 



wiiite lar\;i with distinct head and six sliort legs 



The Northern Corn Root-worm, I'^ighteenth Hej>ort, p. 154 



Hoots penetrated, perforated, irregularly l)urrowed, and more or less eaten 

 off or eaten up. Underground parts of stalk also usually similarlv 

 injured. Small, slender, soft-bodied yellowish while larva, about half 

 un inch long, with three pairs of short legs back of he.ul, a brown head, 

 ami brown patches on neck and on last segment, to be foimd in the 



roots and adjacent earth 



'. .Tlu> Southern Corn Root-worm, Eighteenth Report, p. H(i 



Tai>-root irregularlv gnawed but not severed or burrowed lengthwise. In- 

 jurv bv white thick-bodied grubs an eighth of an inch long, with brown 

 or reddish head and neck-shielil, and with six jointed legs (Fig. S5).. 

 The Colaspis Root-worm, p. 10 1 



The roots eaten awav by thick-skinned, wrinkled, dirtv gray footless mag- 

 gots al>otit ;m inch long when full grown, narrowed i'orwaril to a very 



small hard head (Fig. 149) Meadow Maggots, j). Kil 



. Stalks deeply gnawed, or cut olT at the base under ground, by large dark- 

 colored beetles (Fig. 79) /■W/r)/.';, pp. 9S, 99 



1 phoii us, ]». 1 S4 



Stalk gnawed at base by a blackish snout-beetle with round thorax and 

 oval abdomen (Fig. 193) Otiorhi/nchus oratii.s, p. 192 



