GARDEN FLEA-HOPPER IN ALFALFA. 
11 
Table III. — Infestation in cowpeas by Halticus citri, showing the number of eggs in the 
leaf and where deposited. 
Leaf No. 
1 
2 
3 
4 
5 
6 
7 
8 
9 
Id 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
25 
Eggs 
Eggs 
Total 
deposited 
deposited 
number 
in upper 
surface. 
in lower 
of eggs 
surface. 
deposited. 
4 
1 
5 



1 

1 
2 

2 



6 

6 
1 
6 
7 - 



6 
2 
8 
9 

9 
10 
2 
12 
4 

4 
1 

1 
2 

2 
5 

5 



8 
1 
9 
1 
4 
5 

8 
8 
6 
1 
7 
4 

4 
6 

6 
1 

1 
12 
2 
14 
7 

7 
2 
4 
6 
Leaf No. 
Eggs 
deposited 
in upper 
surface. 
Total. 
164 
Eggs 
deposited 
in lower 
surface. 
Total 
number 
of eggs 
deposited. 
46 
In the field observations and laboratory studies it was found that 
Halticus citri prevails on a wide range of species of host plants. The 
following is a list of the host plants, as noted by the writer, together 
with those recorded in the literature: 
Alfalfa ( Medicago sativa), red clover (Trifolium pratense), cowpeas (Vigna sinensis), 
ragweed (Ambrosia artemisiaefolia) , hollyhock (Althaea rosea), ground cherry (Phy satis 
pubescens), sorghum (Andropogon sorghum), prickly lettuce (Lactuca scariola), bur- 
dock (Arctium lappa), thistle (Cnicus arvensis), crab-grass (Syntherisma sanguinale), 
Kentucky bluegrass (Poa pratensis), oats (Avena sativa), rye (Serale cereale), wheat 
(Triticum vulgare), corn (Zea mays), rape (Brassica napus), barley (Hordeum vulgare), 
Jerusalem artichoke (Helianihus tuberosus), Johnson grass (Andropogon halepensis), 
celery (Apium graveolens), wild mulberry (Morns rubra), bur clover (Medicago 
arabica), sweet clover (Melilotus alba), wild morning-glory (Convolvulus arvensis), 
hack berry (Celtis occidentalis) , cocklebur (Xanthium sp.), eggplant (Solanum me- 
longena), Irish potato (Solanum tuberosum), sweet potato (Ipomoea batatas), peach 
(Amygdalus persica), cucumber (Cucumis sp.), tomato (Lycopersicon lycopersicon), 
tobacco (Nicotiana tabacum), bean (Phaseolus sp.), May-pops (Passiflora incarnata), 
marigold (Calendula officinalis) , verbena ( Verbena incisa) , cotton (Gossypiumhirsutum), 
beggar-weed (Meibomia torluosa), white clover (Trifolium carolinianum) . 
DESCRIPTION. 
ADULT. 
On first sight the brachypterous female adult of this species 
(fig. 7) is likely to be confused with that of a flea-beetle, since both 
are saltatorial and resemble each other in color and general appear- 
ance, even though they represent two different orders. 
