90 
PLANT-BUGS INJURIOUS TO COTTON BOLLS. 
Leptoglossus oppositxis Say. 
Leptoglossus oppositus (figs. 20, 21) is of somewhat less common 
occurrence in cotton fields than L. phyllopus, but east of the Mis- 
sissippi River and north of Florida it 
apparently exceeds that species in gen- 
eral abundance. It has been referred 
to by Dr. Chittenden as the "northern 
leaf -footed plant-bug." 
On September 21, 1905, in Menard 
County, Tex., the writer found, on two 
bolls which were situated close together 
on a cotton plant, between 25 and 30 
specimens of this species in the third 
nymphal instar. Twenty specimens 
were collected and brought to the lab- 
oratory at Dallas. These molted be- 
tween September 21 and 23. On Sep- 
tember 29, 2 molted again although 3 
specimens were still in the fourth stage 
on October 3. One of those which 
molted on September 29 became adult 
on October 21; all others died before reaching maturity. 
Prof. H. Garman, entomologist of the Kentucky Agricultural 
Experiment Station, records the finding of nymphs supposed to be 
Fig. 20.— The northern leaf-footed plant- 
bug (Leptoglossus oppositus): a, Mature 
bug; b, string of eggs; c, egg from end; 
d, sculpture of egg; e, egg from side, 
showing opening from which young has 
escaped, a, b, c, e, Natural size; d, about 
twice natural size. From Chittenden. 
Fig. 21.— The northern leaf-footed plant-bug: a, Nymph of first instar; b, second 
instar; c, third instar; d, fourth instar; e, fifth instar. Enlarged about 3 diameters. 
From Chittenden. 
this species in large numbers on Spanish bayonet or "bear grass" 
( Yucca filamentosa) at Lexington, Ky., July 7, 1899. With this excep- 
tion information concerning wild food plants of this species is wanting 
but with little doubt various weeds, including thistles and "bear 
grass," will be found to be included in the list. 
