114 [October, 1844. 



pubescent like the head : scutel strongly punctured : elytra pubescent, punctate- 

 striate, the interstices transversely wrinkled ; a humeral spot, a small one behind 

 the scute], one on the lateral margio near the middle, a narrow undulated fascia 

 behind the middle, and a small spot before the apex, obsoletely rufous : beneath 

 piceous ; tip of the venter paler. This species has the form of a Mycetophagus, 

 and resembles somewhat M. punclatus, Say. 



2. T. tessellata. Black ; elytra maculate with fulvous. — If 1. long. Penn- 

 sylvania. 



Mycetophagus tessellatus, Melsh. Caial. 



Black above, strongly punctured, finely pubescent: mouth and antennae dull 

 testaceous, the latter with the clava fuscous : thorax with a basal indentation 

 each side of the middle : scutel strongly punctured : elytra transversely wrinkled, 

 each elytrum with about ten fulvous spots, which are frequently confluent : be- 

 neath piceous or dull testaceous. 



Mycetophagidee, Westw. 



Mycetophagus, Fabr. 



1. M. bimaculatus. Testaceous; head, thorax and two spots on each elytrum 

 black. — 2 1. long. Pennsylvania. 



Head blackish, strongly punctured, pubescent: labrum and antennas dull testa- 

 ceous, the latter with the clava fuscous : thorax blackish, punctured and pubescent 

 like the head, with a profound basal impression each side of the middle: elytra 

 rufo-testaceous, pubescent, punctate-striate, the interstices transversely wrinkled; 

 each elytrum with two large irregular black spots, the anterior spot attains the 

 lateral margin, but not the suture ; the posterior one is contiguous to the suture, 

 but scarcely attains the lateral edge : feet and beneath dull testaceous, finely pu- 

 bescent. 



2. M. bipustulatus. Black; each elytrum with two fulvous spots. Hardly 

 2 1. long. Pennsylvania. 



Black, strongly and much punctured, yellowish pubescent: antennae, palpi and 

 labrum dull testaceous : thorax and elytra sculptured as in the preceding, the 

 latter with a roundish subhumeral spot, and a transverse one behind the middle, 

 fulvous : beneath piceous : feet dull testaceous. 



Atomaria, Kirby. 



1. A. pubescens. Dull ochraceous, pubescent. — 1J 1. long. Pennsylvania. 

 Cryptophagus pubescens, Melsh. Uatal. 



Body dull ochraceous, yellowish pubescent : head finely and confertly punc- 

 tured : eyes black: antennae and* feet paler man the body: thorax transverse, 

 punctured like the head, with the lateral edges entire, and feebly rounded ; scutel 

 transverse : elytra very minutely punctured and wrinkled, and densely pubes- 

 cent. 



2. A. crenata. Ochraceous, pubescent; elytra striate-punctate. — 1$ I. long. 

 Pennsylvania. 



