18 BULLETIN 746, U. S. DEPARTMENT OE AGRICULTURE. 
of the female are white. The wings are narrow, outer margin oblique, apex 
pointed. The male is brownish ochre in color, the female straw yellow ; the two 
rows of brown dots are distinct in both sexes. 
Eange: Mexico, numerous localities, Gulf States, and lower Mississippi 
Valley. 
Grote's crambidoides was described from Kansas, so there can hardly be any 
doubt of the application of the name. Walker's lineosellus was described from 
Honduras, whence I have no material. If .the names shall be found to refer 
to the same form, Walker's name would have priority. 
INSECTARY METHODS. 
Experiments with the sugar-cane moth borer were conducted at 
New Orleans in a room open on all sides, wire screen taking the place 
of walls and allowing free access of air and moisture. 
Cylindrical cages of wire screen were used for the adults. Shortly 
after emergence the moths were transferred to these cages, which 
were made by sewing together with wire the edges of pieces of ordi- 
nary window screen, these pieces being cut of such a size as to form 
cages about 7 inches high by 6 inches wide. Some of the horizontal 
strands of wire were pulled off the top and pieces of cheesecloth were 
stretched across so that the exposed ends of the vertical wires would 
extend through the cloth, thus holding it firmly in place. These cages 
were placed over saucers of damp sand, and the adults were supplied 
with young cane or corn leaves in tubes of water for oviposition. The 
females laid eggs readily on the leaves and also on the sand and the 
sides and tops of the cages. 
The leaves with the masses of eggs were then transferred to speci- 
men jars about 3 \ inches wide by 12 inches high, covered with cheese- 
cloth. On hatching, fresh food was supplied as needed, and the 
young larvae Were allowed to remain until after the first molt, when 
they were transferred to individual tubes. These were about half an 
inch in diameter by 7 inches long, made by breaking ordinary glass 
tubing. One larva, with pieces of fresh stalks of cane or other food 
plants, was placed in each tube, the ends of which were firmly plugged 
with cotton batting. A number of tubes were placed in a cigar box, 
the dark interior of which was somewhat similar in degree of illumi- 
nation to the interior of a cane plant. The actions of the larvae were 
easily observable through the glass. The tubes were very easily 
cleaned by forcing a wad of cotton through them from end to end 
with a rounded stick or plunger. 
The pupae were placed on damp sand under ordinary drinking 
glasses. 
Temperature and humidity apparatus used in the experiments were 
maximum and minimum thermometers, sling psychrometer, and re- 
cording hygrothermograph. 
