AN EXPLANATION 
OF 
THE TERMS USED IN ENTOMOLOGY. 
Abdomen, that part of the body distinct from the thorax, forming 
the hinder part of tire insect, and consisting of segments or rings. 
(PL 10. Jig. r.e.) 
JEquale, when it is of the same breadth with the thorax. 
Barbatum, with tufts of hair at the sides or extremity. 
Falcatum, shaped like a sickle. 
Petiolatmn , attached to the thorax by means of a slender elongated 
tube. 
Planum, the under part flat. 
Sessile, sitting attached to the thorax in its whole breadth ; not di- 
stant and connected by a filament. 
Subpethlatvm, attached to the thorax by a short tube, nearly equalling 
the thorax in breadth. 
ACULEUS,f/ie Sling, an elongated dart, often poisonous, seated in the 
extremity of the abdomen. 
Compasitus, haring two or more sharp points or darts. 
E xsertus, projecting, not lying hid within the body. 
Recandilus, always concealed within the abdomen, and seldom thrust 
out. 
Retractilis, for the most part exserted, but capable of being drawn in. 
Simplex, having one dart or point. 
Vaginatus, inclosed in a bivalve sheath. 
AL/E, the Wings, the instruments of flight. 
Acuminata, terminating in a subulated apex. 
Angulata, the posterior margin having prominent angles. 
Angulus uni, tire posterior angle of the inferior wings. 
Angulus posticus, that extremity of the wing whichls opposite to the 
base and to the apex. 
Apex, the part opposite to the base, terminating the anterior uiai- 
gin. ( PL 10. fig. 8. cl) 
Basis, the part by which it is connected with the thorax. ( PI • i0 ‘ 
fig. 8. b.) - 
