276 



INSECTS AT HOIilE. 



Dragon-flios, known to entomologists as Cordulegnster annii- 

 latvs. In this genus the ocelli are set in a row, the eyes 

 toward each other above ; the lower or anal angles of the lever 

 wings are boldly angnlated, and the abdomen is club-shaped. 

 Reference is made to tliis peculiarity in tlie generic name 

 Cordulegaster, which is composed of two Greek words, the 

 former signifying a club, and the other the belly. The insect 



XXVII. 



3. Ptil*othnps coriacea. 2. Cordulegaster aiinnlatus. 3. Raphidia ophiopsis. 

 THlgaris. .J. O.siiiylus chrysops. «. Kggs of Chrysopa. 



4. Chrysopa 



attains a very great size, being sometimes even larger than 

 the illustration, and is very handsome in point of colom-, tlie 

 whole body and thorax being marked with bold bands and 

 stripes of rich golden-yellow. A specimen in my collection 

 has retained the yellow marks of the thorax in a wonderfully 

 perfect manner, but those of the abdomen have almost whuUy 

 perished. 



