i 



I 



m 



4 



150 Economy of the Hisya* 



the pupae of Hispa rosea ? ( quercifolice ) and H. suturalis. 

 The following description will serve to identify this 



parasitic insect. 



Ichneumon Hispce. Blacky polished ; abdomen, 

 above, rough with deep confluent punctures ; piercer as 

 long as the abdomen; legs honey yellow, the hinder 

 tibiae and tarsi white, annulated with black ; wings trans- 

 parent, with a black carpal spot. 



Length of the body to the base of the piercer, 29 



hundredths of an inch. 



Expansion of the wings 59 hundredths of an inch. 



The body of this species is black and highly polished ; 

 the antennae and piercer, how^ever, though black, are 

 opaque. The abdomen is slender, almost sessile, densely 

 punctured above, and with impunctured incisures, and 

 the first segment is deeply concave before. The upper 

 side of the anterior and intermediate tarsi are sometimes 

 dusky. The hindmost tibiae are w^hite, with a broad, 

 black ring at both extremities. The 1st, 2d, and 3d of 

 the hindmost tarsal joints are tipped with black, and the 



■ 



two last joints are entirely black above. 



The Baron DeGeer, in the 5th volume of his " Me- 

 moires pour servir a Thistoire des Insectes," * has given 

 an account of the proceedings of " some kinds of larvae, 

 whose transformations are unknown, but which appear to 

 belong to the class of coleopterous insects." Two of 

 these larvae, in size, form, and habits, are much like those 

 of Hispa ; his insects, however, left the leaves where 

 they had been feeding, went into the earth, and there 

 perished without completing thejr transformations. Un- 



8« Mcmoirej page 402, &c. plate XII. fignies 13—20 



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