DIALOGUE XXXIV. 
ORDER DIPTERA. (ESTRUS, QR GAD FLY. 
(E. BOVIS, OR OX GAD FLY. CE. GVIS, 
OR SHEEP GAD FLY. CE. TARANDI, OR 
REIN-DEER GAD FLY. 
MOTHER. We are now, Lucy, I 
think, sufficiently acquainted with the 
order hymenoptera, and may proceed to 
the sixth order, which is called diptera. 
Lucy* Ptera, I know^ means wings ;- 
what does the other part of the word 
mean ? 
Mother. It is derived from a Greek 
word, signifying two ; diptera, therefore^ 
means the two-winged order, and all its 
genera consist of insects having only two 
membranaceous wings. 
O 5> 
