256 



IWeJiiotliorax. The middle piece or part of the thorax to which the elytra and middle 



I^air of legs are attached. (See page 14.) 

 inetaiiotiian. The upper or dorsal surface of the metathorax, (See page 15.) 

 MetassterimBM. The under surface of the metathorax. (See page 15.) 

 ITIefafliorax. The posterior part or piece of the thorax to which the wings and 



hind pair of legs are attached. (See page 15.) 

 MonilifbrsBi. Distinct rounded joints resembling a string of beads. 

 IWiiltiaB'tifiiJlate. Composed of many joints. 

 Mutici. Unarmed; without a ^jrosfenm? spine. 



l^asal SBittire. The suture between the clypeus and face. (See page 13.) 

 I\erves. The larger ribs or veins of the elytra and wings extending from the base 



toward the apex. 

 ]¥erTHles. The smaller connecting veins of the elytra and wings. 

 Oblique. When applied to the face, denotes that it slopes under and backward 



toward the breast. 

 Obsolete. Indistinct, or almost lost to view. 

 Occiput. The upper or back part of the head. (See page 11.) 

 Ocelli (singular Ocellus). The three simple or little eyes. (See page 13.) 

 ©clireoiis. Ocher-colored. 



Ociili (singular Ociilns). The eyes. (See page 13.) 

 Ovate. More or less egg-shaped. 

 Oviduct. The ovipositor. 

 Ovipositor. The part used in depositing eggs, placed at the apex of the female 



abdomen ; it consists of four corneous pieces, two of which curve upward and two 



downward. (See page 22.) 

 Palpi. The four jointed appendages attached to the mouth. (See page 14.) 

 Papiiiofos'Ml. Having the form of a butterfly's wing. 

 Pectus. The breast, or under surface of the thorax;; the same as sternum. 

 PellMCltl. Transparent. 

 Piceous. Color of pitch. 

 Pinnae. The minute oblique ridges or rays of the external face of the posterior /emora. 



(See page IS.) 

 Pinnate. Furnished .with pinnae. 

 Planate. Flattened. 

 Plications. The folds of the wings. 

 Posterior and Posteriorly. Behind. (See page 10.) 

 Posterior lateral niarg'ins. The posterior margins of the sides of the prono- 



tum extending downward from the tip to the lower posterior corners. 

 Pre-anal. Above or before the anal opening; usually applied to the triangular 



piece or plate that rests on the upper surface of the last abdominal segment. (See 



page 22.) 

 Process. A prolongation of the surface or margin ; as, a tooth, &c. 

 Produced. Drawn out; applied to the head, it signifles that the upper part of the 



front extends forward. 

 PronotuBBB. The shield which covers the front part of the thorax, extending down 



the sides nearly to the legs. (See page 15.) 

 Pi'OsternBBDBB. The under surface of the prothorax. (See pages 15 and 16.) 

 Pa*otliOB*ax. The anterior division of the thorax; the part with which the head is 



connected. (See page 15.) 



