Transactions Texas Academy of Science. 
77 
hopper had not an egg but a good-sized larva upon it. A second nest 
was then revealed and a third and so on until eight had been opened 
and I had lying before me a collection of nine caterpillars, including 
the one not yet stored. All the nests were scattered over a space not 
larger than half of this page. The chamber was oblong (long axis 
horizontal), about two inches in length by % to % inch across and 
two inches below the surface. Some of the chambers were so close 
that they had but a % inch wall between them. J ust at what point 
the tunnel (which measured % inch in diameter) entered the cham- 
ber, I could not exactly determine but think that it come off of one 
end, which would make the shape of Thomaes nest nearly like that 
of Ammophila procera. (Fig. 22.) 
In each case the egg or larva had an exactly similar position on 
the locust. This was just above the coxa of the hind leg (which in 
one case was torn away) i. e., between the articulation of the coxa 
and the locust’s “ear/* The only variation in this regard was that 
in four cases the egg or larva was placed on the right and in four 
on the left side of the locust. 
The egg of P. Thomae is slender and about 7 mm. in length. It 
arches from its point of attachment over the coxa of the hind leg, 
which, though the free end of the egg touches it, cannot easily in- 
jure it no matter how much the locust may be kicking. The egg is 
yellow with the exception of the two hyaline ends. Its anterior 
third is white and the extreme attached end is a watery hyaline 
disc. Like the egg of Ammophila , that of Priononyx does not 
seem to hatch. The first indication I perceived of larval life was 
the appearance of tracheal tubes down each side and later the suck- 
ing movements on the inside of the translucent larva. 
Below I give the data on the condition of the nine locusts found 
Oct. 9th and the development of the larva : 
No. 1.- — Locust not yet stored. Dead when found. 
No. 2.— Locust kicks violently without stimulation. On touching, 
it will jump two feet. Egg dead. Locust lived four days. 
No. 3. — Locust twitched spontaneously from time to time as long 
as Oct. 11; legs and mouth parts do not usually twitch simultan- 
eously. Egg was the one most recently laid (Oct. 9). Larva spun 
cocoon in night of Oct 14-15. Length of larval life 5% days. Co- 
coon soon turned dark brown. 
No. 4. — Locust a great kicker; jumped three feet with egg upon 
it; lived till Oct. 11, when wasp grub was nearly half grown. Very 
young larva showed tracheae when found (Oct. 9) ; begun to spin 
cocoon at noon Oct. 14 ; cocoon light brown next morning. 
