INSECTS LIVING IN ROTTEN OAK WOOD. 223 



Bendroides canadensis Latr. Under bark of stumps and felled trees. 

 (Riley, also Chittenden.) 



Cucujus clavipes Fabr. Under bark of stumps and felled trees. 



Strongylium terminatum Say. Larvne of this insect were found Jan- 

 uary 12, 1882, at Washington, D. C, feeding in rotten oak 

 wood. The full grown larva measures about 1 inch in length. 

 They are polished, yellowish white, and cylindrical, the two last 

 segments brownish yellow. Tip of last segment truncate, with 

 two black, upward curved horns. There is also on the dorsum 

 of this segment a blackish transverse ridge divided at the middle, 

 and each half beset with five or six short, sharp teeth. The 

 beetle issued the 12th of June. (Riley's unpublished notes; see 

 also, Schwarz, Amer. Nat., October, 1882, 823.) 



Mordella 8-pimctata Fabr. Larv^a found in old oak stumps. Color: 

 Head yellowish white with three distinct yellowish lines above. 

 Legs short. Tail pointed, horny and blackish brown, (Riley's 

 unpublished notes.) 



Hymenorus communis Lee. Found in Maryland, February 22, 1884, 

 numbers of larviie of above beetle boring in a rotten oak stump, 

 the largest of which measured about 11°*™ in length. They are 

 highly polished and pale yellow, the head and posterior margin 

 of the thoracic and first three abdominal segments somewhat 

 darker. A large squarish spot on the eighth and the greater ante 

 rior part of the last segment quite dark yellow ; labrum brown ; 

 tip of body rounded. The first beetle issued May 1. (Rilej's 

 unpublished notes.) 



Pelidnota punctata Linn. Lamellicorn larva in rotten oak stump. 

 Riley has published a full account (3rd Rep. Ins., Mo., p. 319). 



Dinoderus punctatus (Say). Boring in an oak stump; abundant; ap- 

 pears to be parasitized. (F. L. Chittenden in letter). 



Parandra brunnea Fabr. Under bark. (Chittenden.) 



Ceruchus piceus (Weber). In decaying oak wood. (Chittenden.) 



Nyctohates pensylvanicus (De Geer). Under bark. (Chittenden.) 



Hypulns simulator (Kewniau). In decaying wood. (Chittenden.) 



Osmoderma scabra Beanv. In decaying oak wood. (Beutenmiiller, 

 Psyche v, 281, 1889.) 



Osmoderma eremicola Kuoch. (Coquillett in letter.) 



Athous cucullatus Say. (Coquillett in letter.) 



Androcliirus fuscipes Me\s. (Coquillett in letter.) 



Elater nigricollis Herbst. (Coquillett in letter.) 



Lyctus striatus Melsh. 



Trogoxylon paralleopipedum (Melsh.) The two latter species probably 

 bore in dry oak wood, injuring furniture, etc. (Riley, Scientific 

 American, Dec. 21, 1889.) 



