INSECTS AFFECTING PARK AND WOODLAND TREES 



495 



Mycetophagus punctatus Say 



This somewhat elongate beetle, brightly marked with reddish brown and black, 

 nearly inch long, infests soft fungi of basswood in June and July. 



The mouth parts and extremities of the antennae are rufous, the 

 middle portion of the latter being black. The eyes are slightly emargi- 

 nate, rounded, coarsely granulate ; labrum, dorsum of head and prothorax 

 black, coarsely punctured. The wing covers have a large, black scutellar 

 spot and are margined laterally with the same color, from which there 

 extends near the middle a conspicuous lobe; near the posterior extremity 

 there is a broad, somewhat irregular black band across the wing covers. 

 These organs are rather finely striate with coarse punctures and clothed 

 with a short, rather coarse pubescence. 



Mycetophagus flexuosus Say 



This rather narrow, elongated, oval beetle conspicuously marked with black and 

 reddish, infests soft fungi on basswood in June. 



The mouth parts and the extremities of the antennae are reddish, the 

 middle segments of the latter being black. Eyes prominent, coarsely 

 granulate ; head and prothorax coarsely punctured. Wing covers with con- 

 spicuous striae composed of almost confluent punctures ; reddish brown, 

 with a conspicuous black scutellar spot extending some distance each side 

 of the scutellum. There is a broken, irregular black band about midway of 

 the length of the wing covers, and a nearly complete one at the posterior 

 third ; wing covers clothed with a coarse pubescence. 



Triphyllus humeralis Kirby 



This minute, oval, dark reddish brown beetle may be found on fungi growing on 

 basswood. 



It is about l fe inch in length. The head and thorax are slightly 

 darker than the dark reddish brown wingf covers, and the dorsal surface 

 of the entire insect is faintly punctured and sparsely clothed with a short, 

 appressed. golden pubescence. 



