32 POPULAR ENTOMOLOGY. 



4. Libellulidw. Wings large and equal ; antennae short 



and slender ; mandibles horny, thick, and strong ; 

 maxillae long and toothed ; body very long and slen- 

 der ; eyes very large, uniting at the top of the head ; 

 legs short, slender, and armed with spines ; tarsi three- 

 jointed ; colour various and beautiful ; size large. 

 Locality, standing water. 



5. Hemerobiidce. Wings broader than the last ; antennae 



long and filiform ; jaws horny and acute ; maxillae long ; 

 body shorter than the preceding family ; head small ; 

 eyes prominent, and often gold-coloured ; legs slender ; 

 tarsi five-jointed ; colour bright, often green ; wings 

 with a prismatic lustre ; size small. 



6. Sialidce. Wings, anterior pair large, hinder pair 



smaller ; antennae long and filiform ; jaws horny and 

 toothed ; prothorax large and square ; tarsi five- 

 jointed ; colour in some species dull brown ; size 

 moderate. Locality, near water. 



7. Panorpidce. Wings equal ; head prolonged into a ros- 



trum ; antennae long and slender ; mandibles small 

 and toothed ; maxillae two-lobed ; clypeus pointed at 

 the tip ; body long and slender ; prothorax forming a 

 collar; legs long and slender; tarsi five-jointed; body, 



