226 



Larva. — Length, 8.5-1 1.9 mm. White, the head brownish black, 

 shining. 



Antennae short and stout, armed at apices with 2 short processes ; 

 labium with a small central tooth, the first lateral on each side dis- 

 tinctly larger and extending anteriorly beyond the apex of the central 

 one, sides of plate sloping abruptly backward, armed with 3 teeth; 

 mandibles stout, their inner margin with 2 teeth in addition to the 

 apical one. Apical abdominal segment with the dorso-central process 

 small, the lateral much longer and slightly more pointed than the 

 latero-ventrals, all fringed with marginal short hairs and each with 

 conspicuous black mark on the posterior surface; anal blood-gills ab- 

 sent. 



Pupa. — Head without anterior protuberances. Palpi curved slight- 

 ly forward at their apices. Thoracic respiratory organs long and 

 slender, dark basally, pale apically; legs extending to middle of 

 fourth segment beyond apices of wings. Dorsal abdominal segments 

 2-6 each with a noticeable transverse subchitinized band of a sha- 

 greened texture ; the disc of segments with small setigerous punctures. 



The above descriptions are abridged from Alexander's, reference 

 to which is given under species name. Alexander's material was ob- 

 tained at Ithaca. N. Y. The larvae feed in fungi, clegans being taken 

 in a species of Pomes {Poly poms) growing on a tree-stump. The 

 imagines emerged in September and October. 



The species occurs throughout the Atlantic states and is recorded 

 from Wisconsin, so that it probably occurs in Illinois though we have 

 no record of it. 



Subfamily RHAMPHIDIINAE 



The only information I have regarding the larval and pupal stages 

 of this subfamily is that contained in the description of the European 

 species BlUptcra omissa. The larvae of Rhauiphidia longirostris has 

 been found by Gercke, but he did not describe it. 



The characters of the larva and pupa of BlUptcra as indicated by 

 Mik are given below. One species of this genus, clausa Osten Sacken, 

 occurs in North America. 



ElvUPTKRA OMISSA EggCr 



Elliptcra omissa Egger, Verh. d. zool.-bot. Ges., Vol. 13, p. 1108. Imago. (1863) 

 ElUjiUra omissa Egger, Mik, Wiener Eiit. Zeit., 1886, p. 337. Larva and pupa. 



Larva. — Length, 7 mm., breadth, 1.5 mm. More robust than most 

 members of the family, the segments distinctly broader than long. 



