534 famiIjV XVII. -KN'DOMYciiin.i:. 



In juldilidii to llic cliaracters nu'iitioncd they have the antennte 

 siliiatcd upon the front, usually about half the leugth of the body, 

 I)-, 10- or ll-jointed, the last three joints forming a 

 distinct rlul); head moderate in size, prolonged in 

 front into a shoi't muzzle; thorax usually nearly 

 s(inai'e, trisuleate at base, often with distinct wide thin 



FJK 198. Maxillary -i i y,i -i i, ni^i- 



palpus EmtomychuL margiiis tui'iUMt Up ai tlic skIcs; clytia rounded at tip 



(After LcHaroii ) i • j-l I i i i- a i • i h 



and covering tlie dorsal segments; front and nnddle 

 coxa' globose, hind ones transverse ; front coxal cavities open behind ; 

 ahdomeu with five free ventral segments; legs of moderate leugth, 

 not retractile; tarsi either 4-joiuted or apparently 3-jointed, but 

 then Avitli a small concealed joint at the base of the terminal one ; 

 tarsal claws simple. 



The larvffi are usually moderately elongate, only slightly con- 

 vex, scaly above and with the sides of the ])ody bearing a number of 

 appendages. While not injurious, the larvffi cannot be said to be 

 especially beneficial, their food consisting principally of fungi and 

 perhaps the juices of decaying wood. Fully 500 species of the 

 family are knoAvn, less than 30 of which have been described from 

 the United States. Of these ten are known from Indiana, while a 

 few others doubtless occur. 



The principal literature treating of the North American species 

 of the family is as follows : 



LeConfc. — ^" Synopsis of the P^ndomychidre of the United 

 States." hi Proc. Phil. Acad. Nat. Sci.. VI, 1853, 357-360. 



Crotch. — "Synopsis of the Endomychida; of the United States," 

 in Trans. Amer. Ent. Soc, IV, 1873, 359-363. 



Wicyham. — "The Endomychichr- and Erotylida^ of Ontario and 

 Quebec," in Can. Ent., XXVI, 1804, 337-339. 



Our re])resentatives of the family may ]»(^ divided among two 

 subfamilies, se|)arated as follows: 



KKY I'O sriSKAlIILIES OF ENDOM YCUID.-E. 



(/. T.-ii-si (listiucliy 4-.j()iiite(l ; size smaller, less than 4 mm. 



Subfamily I. MycET.^iN.E, p. 534. 

 <tn. Tarsi (lilalcd. api>arently .">-.iointecl, the third joint minute and hidden 

 between lli(> lubes of the seeciud ; larger, usually more than 4 mm. 



Subfamily II. Endomychin.^, p. 537. 



Subfamily I. MYCETAEINAE. 



Ver\ small species having th(> farsi narrow, the third joint dis- 

 liiiet. though shorter than second. The following genera are per- 

 ha.!)S re])reseiited in the State: 



