ORISMOLOGY. 263 
wider towards the end. Ex. dédomen of Ophion, 
Feenus, and other Ichneumonide?. 
17. Lounuxare (Zunulata). Crescent-shaped. Curved 
with both ends acute, like the moon in her first 
quarter. Ex. Zast joint of the labial palpi of 
Oxyporus. Puare XIII. Fie. 4. a. 
18. Fancarr (Failcata). Sickle-shaped. Curved with 
the apex acute. Ex. Ovipositor of Acrida varia K. 
Antenne of Atractocerus. Puarr XI. Fie. 8. 
19. Linear (Linearis). Narrow and of the same width 
throughout. Ex. Wings of Pterophorus monodac- 
tylus. 
20. Arcuate (Arcuata). Linear and bent like a bow. 
Ex. Rostrum of Balaninus Nucum. Puare XIII. 
Fig. 12. 
21. CuLTRATE (Cultrata). Coulter-shaped. Straight on 
-one side and curved on the other. Ex. Oviposztor 
of some Tenthredos. Under-wing of many Ich- 
neumonide. 
22. SPATULATE (Spatulata). Spatula-shaped. Broader 
and rounded at the apex, linear and narrow at 
the base. Ex. Abdomen of Ichneumon amictorius 
Panz. 
23, CLAvaTE (Clavata). Club-shaped. Linear at the 
base, but towards the apex growing gradually 
~ broader. Prate XI. Fic. 4. 
24, QuaDRATE (Quadrata). . Square. Quadrilateral 
with the sides equal and the angles right angles. 
* The term falcate has usually been applied to signify this figure, 
as well as that to which we have restricted it; but as the truncate 
and sharp extremity forms a striking difference, we thought it best 
to invent a new term. 
