THE INSECTS. 349 



Newman says : " The common saw-flies, or Atlantites, 

 have the antennae forming a point. The club-horned saw- 

 flies, or Tenthredinites, have the apex of the antennae club- 

 shaped." 



The SAW- FLY of Ronalds is probably Dolerus fulviventris 

 a very common species, found everywhere, particularly 

 on the plants known as horse-tails. It varies much in 

 colour. 



THE SAW-FLY. THE GOVERNOR. 



Another Hymenopterous insect one of the bee family, 

 Andrena cingulata is, we think, the natural representative 

 of that well-known lure for trout, the GOVERNOR. This 

 insect is very plentiful in the spring and summer months, 

 forming burrows in the sandbanks, and found constantly 

 on the catkins of the sallow, and on other plants, from 

 which it gathers quantities of pollen, and this, combined 

 with its reddish abdomen, covered with small hairs, is an 

 attractive morsel, should the insect, which often happens, 

 be blown on the surface of the water. 



In the order HEMIPTERA (half- winged) the membranous 

 wings are covered by wing-covers, either entirely mem- 

 branous and reflexed, or partly coriaceous and partly 

 membranous and horizontal ; the tarsi (terminal part of 

 the leg) never more than three-jointed. 



This order, comprising insects of very varied structure, 

 is divided into two great divisions, Heteroptera and Homop- 

 tera, which by some authors are made into two distinct 

 orders. The points in which they agree consist in the 

 imperfect metamorphosis and the structure of the mouth. 



The WATER-CRICKET (Velio, currens) has a truncated 

 thorax, with a reddish spot near the anterior margin ; 

 abdomen orange and black in upper part, orange below; 



