OF WASHINGTON. 101 



externally on the larva; and Tenebroides corticalis Melsh., the 

 larva of which was detected in the act of devouring the Ceram- 

 bycid pupa in its cell. 



Liopus punctatus Lee. was reared from Cornus florida, the 

 imago being first noticed May 14 in its pupal chamber, and con 

 tinuing in this neighborhood to July 3. According to Mr. Hop 

 kins, this species also infests plum. 



Lepturges symmetricus Hald. was reared from the larva 

 found under the bark of a trunk of dead hackberry ( Celtis 

 occidentalis} . One larva transformed June 2 and became an 

 imago June 12, thus passing ten days as pupa. Latest capture 

 of imago, July n. 



A Braconid parasite, Cenoccelius rubriceps Prov., was reared 

 from this species June 17. 



Lepturges signatus Lee. breeds in the limbs of Cercis cana- 

 densis, beginning its transformations to pupa toward the close of 

 April, the imago appearing about Washington in May and con 

 tinuing throughout June. It also infests beech (Hopkins). 



Lepturges querci Fitch, as its specific name would indicate, 

 was originally taken by its describer on oak. I have reared it 

 with the preceding species from red-bud, May 28, and beaten it 

 from the twigs June n. At Ithaca, where I reared it from 

 hickory, specimens were found as late as July 21. I have reared 

 with this species a Braconid which Mr. W. H. Ashmead iden 

 tifies as Calyptus magdalis Cr. 



Ecyrus dasycerus Say. was also reared from twigs of red-bud 

 May 31. This specimen was kept until June 17, remaining, as 

 far as could be seen, inactive during the entire time. The insect 

 itself is heavy in conformation, and sluggish, as its appearance 

 would indicate. It stridulates, after the manner of its kind, 

 loudly and slowly. I have beaten this species from the twigs 

 of tulip and locust at Rosslyn, Va., from May 23 to June 27. 

 It is one of the species bred by LeConte from hickory. 



Etipogonius vestitus Say. A pupa was found in a twig of 

 Cornus florida near Washington May 6, from which the beetle 

 issued May 25. The pupal stage is evidently long in this in 

 stance, probably not far from three weeks. I have also beaten 

 specimens from chestnut at Ithaca, June 30 to July n, and Dr. 

 Riley records as food-plant, hickory, and Mr. Hopkins, walnut. 



Dysphaga tenuipes Hald. A single specimen of this anoma 

 lous species was reared from Cercis canadensis May 23. The 

 imago, with its long wings and undeveloped elytra, flies freely 

 with a humming or buzzing sound like a bee. It has short legs 

 and runs slowly. When held it stridulates feebly for its size. 



Haldeman, who described this species in 1845 (Pr. Ac. Nat. 



