ORISMOLOGY. 
num is at first adnate to the sides of the postscu- 
tellum, and then diverges across the pannel to the 
base of the wings. Ex. Belostoma Gigas. — 
Iv. ABDOMEN. 
. CoatirEe (Coalitum). When the abdomen is not 
divided into segments. Ex. Aranezde, Chelonus. 
» Puicate (Plicatum). When it consists. of. transverse 
folds. Ex. Gonyleptes. The Cancriform Spiders. 
PuatEe XV. Fie. 11. 
. Tense (Tensum). When it is not folded. Ex. 
Most Araneide. 
. Insecrep (Sectum). When it is divided into seg- 
ments. Ex. Most insects. 
. SEssrLe (Sessile). When it has no footstalk, but is 
closely united to the trunk. Ex. Coleoptera. 
» Petrouate (Petiolatum). When the first segment, 
or more, is longer and much narrower than the 
subsequent ones, so as to form a footstalk. Ex. 
The Sphecide. Ichneumon. 
. Apso1nep (Adjunctum). When it is connected with 
the trunk by a very short petiole. Ex. Vespa L., 
Apis L. 
. SUPERIMPOSITED (Superimpositum). When the foot- 
stalk of the abdomen is inserted in the upper part 
of the postscutellum, so as to leave a considerable 
space between it and the postpectus. Ex. Evania. 
Prare ty ie. 2. 
- Rerracrep (Retractum). When it is nearly with- 
drawn within the trunk. Ex. Gonyleptes. PLATE 
XV ie i 
