No. 39] ODONATA OF CONNECTICUT: GLOSSARY 301 



Contiguous: So near together as to touch. 



Costa: The vein forming the front margin of the wing; first longi- 

 tudinal vein. 



Coxa, -ae: The segment of the leg next the body; pro- front; meso- 

 middle; meta- hind coxae. 



Coxal process: A point on the pleura about which the coxa rotates 

 in its socket and which marks the ventral terminus of the 

 pleural sutures. 



Crenulate: With small scallops, evenly rounded and rather deeply 

 curved. 



Crepuscular: Active or flying at dusk. 



Cui, Cua: Branches of cubitus. 



Cubito-anal cross-veins: Veins connecting cubitus and first anal veins. 



Cubitus: The fifth longitudinal vein; the vein just behind the media. 



Cuneiform: Wedge-shaped. 



Declivous: Sloping downwards. 



Denticulate: Provided with small teeth. 



Dimorphic: Differently colored in the two sexes. 



Distad: Towards the outer end of an appendage; away from the 



body; opposed to proximad. 

 Distal: Of or belonging to portions of appendages farthest from the 



body. 

 Divaricate: Spreading apart. 

 Dorsad: Towards the dorsum or back. 

 Dorsal: Of or belonging to the upper surface. 

 Dorsal punctures: Punctures or spots on the dorsum. 

 Dorso-meson: Intersection of the meson with the dorsal surface of 



the body. 

 Dorsum: The upper surface of the body, or segment of the body. 



Emarginate: Notched; with an obtuse, rounded, or quadrate section 



cut from margin. 

 Epicranial suture: A Y-shaped suture on the dorsum of the head. 

 Epimerum -a: The caudo-ventral plate of the pleurum in Odonata; 



same as epimeron. 

 Episternum -a: The anterior or cephalic divisions of the pleura. 

 Exuviae: Skin cast ofif at molting; usually applied to the final skin 



cast before the adult emerges. This word is always plural 



in form, being similar to the English word "clothes." 



Face: The front of the head below the antennae. 



Falciform: Sickle-shaped. 



Femoral setae: Setae on the femora. 



Femur, -ora: The fourth leg segment in Odonata, considering the 



trochanters as two-segmented. 

 Flavescent: Slightly smoky. 



Forcipate: Bearing forceps or similar shaped structures. 

 Front: That portion of the head between the compound eyes, from 



ocelli to clypeus. 

 Frontal vesicle: In Aeshnidae and others, a swelling between the 



compound eyes, bearing the ocelli. 

 Fuscous: Dark brown approaching black. 



Gena, -ae: The cheeks; sides of the face below the compound eyes. 

 Gills, tracheal: Plates at the tip of the abdomen in the nymphs of 

 Zygoptera which contain tracheae and are used for breathing. 

 Glabrous: Smooth, free from all vestiture; lacking setae or spines. 

 Gonapophysis, -es: The leaf-like processes of the ovipositor. 



