OR1SMOLOGY. 279 



nearly parallel excavations, which run into each 

 other. Ex. Elytra of Colymbetes adspersus ? , and 

 Cybister Rceselii. 



18. UNDOSE ( Undosa). Having undulating nearly pa- 



rallel broader depressions which run into each 

 other, and resemble the sand of the sea-shore 

 when left by the tide. Ex. \Cymatodes* undosus 

 K. MS. 



19. VERMICULATE (Vermiculata). Having tortuous ex- 



cavations as if eaten by worms. Ex. Prothorax 

 of Colymbetes Hybneri and transversalis. 



20. RETJCULOSE (Reticidosa). Having a number of mi- 



nute impressed lines which intersect each other in 

 various directions like the meshes of a net. Ex. 

 Prothorax of Cybister Rceselii. 



21. ACUDUCTED (Acuducta). Scratched across very 



finely as if with the point of a needle or pin. Ex. 

 Colymbetes acuductus. 



22. STRIATE (Striata). Having rather slightly impressed 



longitudinal parallel lines. Ex. Amara commu- 

 nis, &c. 



23. SULCATE (Sulcata). Having deeper impressed lon- 



gitudinal parallel lines. Ex. Dytiscus margi- 

 nalis ? . 



24-. CLATHROSE (Clathrosa). When strias or furrows 

 cross each other at right angles. Ex. Abdomen of 

 Micropeplus porcatus. 



a I do not find in Schonherr (Curculwnid. Method. Disp.) any 

 genus or subgenus of Rhyncophorous beetles the characters of which 

 correspond with those of the insect here alluded to, which I once 

 thought might be a Cyphus Germ, but it is not. It appears common 

 in Brazil, and I have at least two species f it. 



