THE TEPMS USED IN' EXTOMOLOGV. 345 



Hemisphericum, convex above, fiat below, like the section of a globe. 



Linearx, oblong, equal in breadth throughout. 



.Margittatitm, willi a tree elevated margin. 



Membranaceum, nearly of the cons-istence of a leaf. 



Nit'uluiii, the surface smooth and shining. 



Nudui/i, not covered with either wool, hair, or bristles. 



Ohlongum, the transverse diameter much less than the longitudinal. 



Obovutian, inversely ovate, the narrow cud downwards. 



Obtusiun, bhnit, roimded at the apex. 



Orbicufutu7ii, the transverse diameter equal to the longitudinal. 



Ovale, egii-shaped, the outline at both extremities equal. 



Ovatiuii, the longitudinal diameter exceeding the transverse, and the 



latter broader at the base than at the apex. 

 Filoium, set with distinct long hairs. 

 Planum, the imder part tiat. 

 Fubescens, covered with soft hair. 

 Rcfusum, terminating in an obtuse hollow. 

 Rotundutum, the outline nearly circular, without corners. 

 Rugosuj/i, wrinkled, marked with waved and elevated hues, either 



longitudinally or transversely. 

 Scabrnw, rough, with hard raised points. 

 Se?iceiun, covered with soft shining hairs. 

 Tomcntosnm^ covered with a soft down or wool. 

 Crustaceus, somewhat hard, elastic, resisting the impression of thr 



finger. 

 Declarattm Insectvm, the inject arrived at its perfect state. 

 Discus, of the wing, elytra, &;c. the middle between the base, the 



apex, the margin, and the suture {PI. iO.Jig. 5. a.) 

 ELYTILA., two crustaccous or coriaceous wings, expanded in flight. 

 when at rest covering the abdomen, and inclosing the membra- 

 naceous wings. (See p. 37.) The elytra arc subject to great variety 

 in Colour, iNlarkings, Sculpture, &c. and are distinguislied by many 

 terms in common with Alujomen, Alw, Thorax, S^c. They are called 

 Abhrcviata, when shorter than the abdomcru 

 AcnUuta, armed with small sharp points. 

 Annustnta, narrower than the back. 



yl/;r,r, the part at the extremity of the abdomen. {PL 10. fig. 5. d.) 

 Atteniiata, attenuated, blunt Jit the base, growing narrower at the 



apex. 

 Bam, the part next the thorax. {PL \0.fig. 5. r.) 

 Cunulkulata, with deep hollow lines. 

 Carinata, forming a ridge at the suture. 

 Coadunata, imdivided, joined together at the suture. 

 Coavexa, the surface elevated like the section of a sphere. 



