HARDWICKE'S SCIENCE-GOSSIP. 



37 



two longitudinal lighter stripes ; in 2 brown, with 

 similar stripes, lighter; abdomen narrow, flattened, 

 keeled in the middle ; in S covered with powdery 

 cobalt-blue ; in $ brown. Inhabits England, Scot- 

 land, Ireland ; but local. Length i6 lin. ; exp. 26 

 lin. 



B. With 6-8 anteciibital nervures. 



Legs black, externally yellow. 



L. flaveola (Linn.). Wings unspotted, but the 

 base tinged with yellow (the hind wings to a third 



Length 1 7 lin. ; exp. 



1^'g- 33 — A, Dragon-fty. scaping from piipa-ca!;e ; a, insect; 

 b, pupa-case ; B, the process, further advanced : c, the 

 insect ; d, pupa-case ; C, Dragon-fly nearly free, and forming 

 an arch whilst it extricates the body ; e, the insect ; f, pupa- 

 case ; D, Dragon-fly with wings nearly developed. 



of their length) ; pterostigma short, yellow ; thorax 

 and abdomen reddish-yellow ; anal appendages of 

 the male straight, nervures of the wings blackish. 

 England and Scotland ; local. Length 16 lin. ; exp. 

 26 lin. 



L. Fonscoloinbii (Selys). Wings clear ; base 

 tinged with yellow ; pterostigma large, yellow ; 

 hinder tibiae of the male black on the outside ; 

 thorax and abdomen yellow or reddish-yellow ; the 

 upper anal appendages of the ,5 slightly elbowed ; 

 most of the nervui^es of the wings reddish. Habi- 



tat near London ; scarce. 

 28 lin. 



L. meridionalis (Selys). Wings clear, but slightly 

 tinged with yellow at the base ; pterostigma narrow, 

 yellow ; thorax and abdomen yellow ; the sides of 

 the thorax without markings. Found near London ; 

 scarce. Length i6 lin. ; exp. 26 lin. 



L. striolata (Charp.). Wings clear, but little 

 tinged at the base ; pterostigma of the 6 dark, of 

 the 2 reddish ; thorax blackish, the sides with 

 three oblique black streaks ; abdomen of 6 reddish, 



Fig- 34- — ^, larva of Dragon-fly ; b, the abdomen, laid open to sho.v' 

 the respiratory organs or trachea ; c, the pumping apparatus 

 (shut) ; d, ditto, open ; e, head of Dragon-fly. 



of 9 yellow-brown with two small yellow dots on 

 each'segment. England, Scotland, Ireland. Length 

 17 lin. ; exp. 28 lin. 



Z. vitlgata (Linn.). Wings and colours as in Z. 

 striolata, but abdomen without yellow dots. Once 

 taken near Hull, (Hagen.) Length 17 lin. ; exp. 

 28 lin. 



Legs black. 



Z. sanguinca (Miill.). Wings with the base tinged 

 with yellow ; pterostigma reddish ; thorax olive- 

 brown, with the under side, behind the legs, of 

 the ground colour ; abdomen with a lateral black 

 band ; colour, red in the ^ , yellow-brown in the 9 . 

 England ; local. Length 16 lin. ; exp. 26 lin. 



Z. Scotica (Donov.). Wings of the 5 clear ; those 

 of the 2 tinged with yellow at the base ; pterostigma 

 square and black ; thorax blackish or olive-brown ; 

 under side, behind the legs, with three yellow spots 

 forming a fleur-de-lys ; abdomen short (rather club- 

 shaped in the 6 ) ; with two yellow streaks on each 

 segment. Sometimes the S is nearly entirely black. 

 Frequents England, Scotland, and Ireland. Lengtli 

 14 lin. ; exp. 23 lin. 



Z. diihia (Van der Lind.). Wings with a blackish 

 spot at base of wings (larger on the hinder wings) ; 



