The Scottish Naturalist. 



ii 



Below is the fig. of 

 a beetle, showing the 

 relative position of 

 the various parts of 

 the body. This is fol- 

 lowed by a Glossary, 

 and a table of the 

 abbreviations to be 

 used. The work pro- 

 per then commences, 

 and is arranged as 

 follows : — (a) Table 

 of the " groups," for 

 ascertaining to which 

 main division of the 



wp mp 



1 



2 



Coleoptera a speci- 

 men belongs. (b) 

 Table of the "fami- 

 lies " contained in 

 the first group, (c) 

 Table of "genera" 

 in i st family of ist 

 group. (a 7 ) Table 

 of species in ist 

 genus of ist family 

 of ist group. (e) 

 Table of species in 

 2nd genus of ist 

 family of ist group, 

 and so on. 



Explanation of Figure. — 1. A Beetle — nip, maxillary palpi ; m, mandi- 

 bles (or jaws) ; Ip, labial palpi; a, antennae; e, eyes; h, head; th, thorax; 

 s, scutellum ; el, elytra ; hb, hind body ; f, femora ; t, tibiae ; ts, tarsi ; 

 c, claws. N.B. — The wings are folded under the elytra. 



2. An Elbowed Antenna — s, scape ; f, funiculus ; c, club. 



GLOSSARY. 



Anterior. — Front. 



Apex. — The extremity farthest from the middle of the insect. 



Aquatic. — Living in the water. 



Bilobed. — Cleft into two parts. 



Close (when spoken of punctuation). — Having the spaces between the punc- 

 tures not larger than the space occupied by the separate punctures. 



Clypeus.— The front portion of the upper surface of the head. 



Cordate (spoken of the thorax). — Abruptly contracted backwards immedi- 

 ately behind the broadest part, but of about equal width in the part 

 just in front of base. 



Dentate. — Toothed. 



Disc. — The surface, exclusive of the margins. 



Dorsal. — Running along the centre longitudinally. 



Elongate. — Longer thanjbroad. 



Fascia. — A stripe. 



Foliated (spoken of antennas). — Having the terminal joints flat (like leaves), 

 and with a common base. 



Fovea. — A short channel. 



Glabrous. — Smooth (i.e., without stria; or punctures). 



Granulated. — Appearing to be covered with minute tubercles. 



Humeral. — Placed at the external corner of the base of the elytra. 



Interstice. — A space between punctures or striae. 



