1856.] 13 



2. M. flexuosus, ovalis, testaceus, capite tboraceque nigris confertim 

 punctatis, elytris flavis, puncto humerali, macula communi scutellari, margine 

 lateral!, maculis extrorsum confluentibus versus medium, fasciaque lata dentata 

 ad dodraiitem nigris, apice ipso piceo ; antennis testaceis, clava nigro-picea ad 

 apicem testacea. Long. -15. 



Say, Journ. Acad. Nat. Sc, 5, 260. 



Middle and Western States. Allied to the preceding, but smaller and with 

 the. posterior band broader, less near the apex, and anteriorly dentate, and with 

 three confluent spots forming an irregular external transverse band near the 

 middle. 



Varies in having the black spots very much extended so as to cover the greater 

 part of the elytra which then become marked : 



a. With a large orange colored humeral spot enclosing a black dot, and ex- 

 tending inwards below the scutel nearly to the suture ; two very small spots a 

 little behind the middle, and a larger rounded one very near the apex. Alabama, 

 Mr. Haldeman. 



b. With a quadrate humeral orange colored spot enclosing a black dot, and a 

 rounded one very near the apex. Indiana, Mr. J. P. Wild. 



3. M. i)luriguttatus, ovalis longiusculus, niger, capite thoraceque dense 

 punctatis, elytris guttis pluribus flavis parvis praecipue moxpone medium ornatis, 

 antennis pedibusque obscure ferrugineis. Long. -2. 



San Jose, California. The posterior third of the elytra is usually free from 

 spots, sometimes a very small one is seen near the apex. 



4. M. M e 1 s h e i m e r i, elongatus, ferrugineus, capite thoraceque confertim 

 punctatis nigris, elytris flavis macula communi scutellari, margine lobato ad 

 apicem latiore, macula transversa communi media cum margine bis confluente 

 nigris, (macula hac ultima stepe deficiente), fortiter punctato-striatis, antennis 

 medio obscurioribus. Long. -IT. 



Mycetophagus bimaculatus Mels. Proc. Acad. Nat. Sc, 2,* 114 (in parte). 



Pennsylvania, Dr. Melsheimer ; Alabama, Haldeman. I have been compelled 

 to change the name proposed by Dr. Melsheimer, as by an unfortunate error his 

 description was made from two distinct species, one being M. flexuosus, while 

 the other is the present: it, however, affords me much pleasure to commemo- 

 rate his long continued and successful labors in American Entomology by attach- 

 ing his name to this species, which he was the first to detect. 



5. M. o b s c u r u s , elongatus, piceo-niger, capite thoraceque dense punctatis, 

 elytris fortius punctato-striatis ; antennis piceis ad basin et apicem ferrugineis, 

 pedibus piceis tibiis tarsisque rufescentibus. Long. -IT. 



One specimen, Georgia. Of the same form and with the same sculpture as 

 M. Melsheimeri. 



B. Antennae articulis 5 ultimis crassioribus ; thorax lateribus serratis. 



6. M. pluripiinctatus, elongatus, ovalis, nigro-piceus, capite thora- 

 ceque nigris dense punctatis, elytris flavis margine, macula communi scutellari, 

 guttisque plurimis confluentibus nigris ; abdomine pedibus antennisque ferrugi- 

 neis. Long. -16. 



Middle and Southern States : the spots sometimes form several narrow, irregu- 

 lar, transverse fascia;. 



T. M. pini, elongatus ovalis, supra niger, subtus cum antennis pedibusque 

 rufis. Long. -14 -16. 



Zieglcr, Proc. Acad. Nat. Sc, 2, 270. 

 Middle and Southern States, not rare. 



C. Antennae articulis 4 ultimis maioribus ; thorax lateribus haud serratus. 



8. M. obsoletus, ovalis infra rufus, supra niger, elytris fascia dentata 

 antica basin attingente, ad suturam paulo interrupta, macula laterali ad medium. 



