342 ORISMOLOGY. 
minate in the margin. Ex. Tenthredo. Puare X. 
Fre. 8. 
b. Incomeietre (Incomplete). Open areolets that ter- 
minate short of the margin. Ex. Apis. 
6. Raprant (Radians).. When a small roundish areo- 
let is a centre from which several long ones di- 
verge. Ex. Stratyomis. Pate X. Fie. 15. 
7. PerioLate (Petiolate). .When-.an areolet is con- 
nected with another by a stem like a footstalk?. 
PuaTe X. Fis. 8. tails 
8. RamuLose (Ramulose). When an areolet sends 
forth a little unconnected branch. Ex. Pompilus, 
Sphex, &c.° 
9. ANGULAR (Angulate). When an areolet juts out 
on one side into an angle from-which no nervure 
proceeds, to form another areolet. . Ex. Elophilus 
Latr. Cerceris Latr.°° Puare X. Fic. 14. 
10. Dipymovus (Didyme). When areolets are nearly 
divided into two by a nervure. Ex. Cyclo- 
stoma K. é 
11. SesguiatTERous (Sesquealtere). When a minute 
areolet. is appended to a large one. Ex. Postcos- 
tal ureolet of Hylotoma Latr.4 
* Areolets of the Costal Area. 
1. Costa. (Costales). Areolets, one or more, below 
the stigma. ‘Puate X. Fic. 14,°15.:a, b. 
“2. Postcostau (Postcostales). Areolets, one or more, 
above the stigma, Prater X. Fie. 8, 9. a, b. 
* Jurine Hymenopt. t. i. f. 3. 6. > Ibid. t. iti. Gen. 4, 5. 
© Ibid. t. x. Gen. 23,24. * Fbid. t. vi. Gen. 2. 
