1868.] 93 [Sanborn. 



2. In eating, the larva lies upon the tojJ of the leaf like those of 

 hymenoptcrous insects. 



3. The cocoon is very much like those of Hymenoptera. 



4. Like the Hymenoptera, the larva of Limacodes remains all 

 winter in the pupa state. 



5. Like the Hymenoptera again, the legs, wings, antennse, etc., 

 are free, not enclosed in a general envelope like other lepidopterous 

 pupae. 



6. In emerging, the perfect insect does not soften the cocoon, but, 

 like the Hymenoptera, cuts a door in it. I am curious to know Avhat 

 instrument the insect possesses to make this excision. 



7. And finally, the perfect insects of some species, and esjaecially 

 the male sex, have diaphanous wings. 



Mr. Sanborn exhibited larvae and pupae of Colymbetes 

 ( Cymatopterus) sculptilis Harris, found just above the wa- 

 ter's edge at Lawrence, Mass., vinder stones. Also a cluster 

 of eggs of Heterocerus fatuus Kiesenwetter? from the mud 

 flats at Coney Island, N. Y. Tlie eggs are laid by the pa- 

 rent, about one-eighth of an inch or less beneath the sui-face ; 

 the insect burrows on that level, raising a slight elevation 

 similar to that of the mole-cricket. 



Mr. Sanborn also exhibited Cecidomyian larvae of a red- 

 dish orange hue, about one-fourth of an inch in length ; they 

 feed in companies of thirty or forty in the pitch exuding 

 from wounds in the bark of the Pinus rigidus ; whether 

 they were the prime cause of the injury to the tree was 

 not plainly apparent. 



July 1, 1868. 



The President in the chair. Twenty-four members present. 



Professor William H. Brewer of New Haven, Conn., was 

 elected a Corresponding Member. 

 Messrs. Roland F. Alger, John L. Hayes, Ephraim H. 



