44 
ANIMAL ACTIVITIES . 
VOCABULARY. 
Ab do'men (derivation uncertain), 
the posterior part of the body in 
insects. 
An ten'na, pi. antenna: (Gr. ana , 
up, and teino, stretch), a feeler 
growing from the head of an in¬ 
sect. 
An te'ri or (Lat. ante, before), 
front. 
Bi lat'er al (Lat. bis , twice, and 
latus, side), having two sides 
alike. 
Chi'tin (Gr. chiton , a tunic), the 
horny substance forming the exo¬ 
skeleton of insects. 
Cox a (Lat. coxa , the hip), the joint 
of an insect’s leg next the body. 
Dor'sal (Lat. dorsum , the back), 
opposed to ventral. 
Fac'et (a diminutive of face), a part 
of a compound eye. 
Fe'mur (Lat. femur , the thigh), 
the thigh. 
La'bi um (Lat. labium , lip), the 
lower lip of an insect. 
La'brum (Lat. labrum , lip), the 
upper lip of an insect. 
Man'di ble (Lat. mando , chew), 
the hard, biting jaw of an insect. 
Max il'la (Lat. macero , soften), 
the softer jaw behind the man¬ 
dibles of an insect. 
Mes o tho'rax (Gr. mesos, middle, 
and thorax'), the middle segment 
of the thorax. 
Mela mor'pho sis (Gr. met a, over 
or beyond, and morpho , form), 
the changes which take place in 
an animal from egg to adult. 
Met a tho'rax, the posterior seg¬ 
ment of the thorax. 
Moult (Lat. muto , change), the 
shedding or casting of the exo¬ 
skeleton. 
Nymph (Gr. nymphe, a bride), a 
name applied to the young of 
sorae insects, as the grasshopper. 
0 cel'lus (Lat. dim. oioculus, eye), . 
a small eye. 
0 vi pos'i tor (Lat. ovum , egg, and 
pono , place), an instrument for 
depositing eggs. 
Pal'pus, pi. palpi (Lat. palpo, feel), 
a feeler growing from one of the 
mouth-parts. 
Pleu'rum (Gr. pleuron , rib), the 
side of the segment of an insect. 
See Fig. 
Pos te'ri or (Lat. post , after), hind¬ 
er. 
Pro tho'rax (Gr. pro, before, and 
thorax ), the first segment of the 
thorax. 
Spir'a cle (Lat. spiraculum, air¬ 
hole), a breathing-hole. 
Ster'num (Gr. sternon, breast), the 
ventral portion of the segment of 
an insect. 
Strid u la'tion(Lat. strido, creak), 
a creaking noise made by in¬ 
sects. 
Tar'sus (Gr. tarsos, a flat surface), 
the foot of an insect. 
Ter'gum (Lat. tergum, back), the 
dorsal part of the segment of an 
insect. 
Tho'rax (Gr. thorax, the chest), 
the middle division of an insect’s 
body. 
Tib'i a (Lat. tibia, shin-bone), the 
part of an insect’s leg between 
the femur and foot. 
Tra'che a (Gr. tracheia , rough), 
one of the breathing-tubes of an 
insect. 
Tro chan'ter (Gr. trecho , run), a 
part of an insect’s leg between 
the coxa and femur. 
Tym'pa num (Gr. tympanon , a 
drum), an ear-drum. 
Ven'tral (Lat. venter, the belly), 
pertaining to the belly, the part 
opposite the back. 
