98 PROCEEDINGS OF THE NATIONAL MUSEUM. tol. 51. 



CHraONOMUS SCUDDERIELLUS, new species (Chironomidae). 



MaJ^e. — Length, 6.7 mm. ; head and thorax dark, legs ferruginous, 

 abdomen pale; antennae long-plumose, as usual in the genus; wings 

 obliterated (as in all Florissant Chironomidae) ; genitalia as usual 

 in the genus, the claspers stout. The follow- 

 ing measurements are in microns: Distance 

 between eyes, about 320; width of abdomen 

 near base, 880; length of anterior femur, 

 D.bout 1,440; and its tibia the same. 



ISIiocene shales of Florissant (Geo. W. 

 Wilson). 



nolofype.— Cat. No. 61997, U.S.N.M. 

 Scudder long ago noted the presence of 

 Fig. 5.— Chironomus scud- Chironomidae in the Florissant shales, but the 



DERIELLUS. GENITALIA. ' 1 ^ j. I 1 j. 



specimens have been too poorly preserved to 

 describe. The present specimen has all the characters of genuine 

 CMron'omus, and, as the genitalia can be figured, it may deserve a 

 name. 



LEPIDOPTERA. 



TORTRIX (?) DESTRUCTUS. new species (Tortricidae). 



Length, about 8.3 mm.; thorax robust, abdomen tapering; anten- 

 nae reddish, immaculate, about 4.5 mm. long, slender, the apical 

 part curled to form the greater part of a circle; legs hairy or scaly; 

 anterior wdngs about 8.3 mm. long, outer margin about 3.5 mm., 

 lower margin about 7.3 mm., costal border little convex, apical cor- 

 ner obtuse (apex not at all falcate), outer margin forming only a 

 little less than a right angle with costa and nearly straight; anterior 

 wings apparently more or less longitudinally streaked and with a 

 broad but rather obscure submnrginal band, failing or diffused in the 

 costoapical region. 



Miocene shales of Florissant (Geo. W. Wilson). 



Holotijpe.— Cat. No. 61998, TT.S.N.M. 



Much smaller than T. foj'issantan-a Cockei-ell. The generic refer- 

 ence is, of course, uncertain. . 



TRICHOPTERA. 



DOLOPmLUS (?) PRAEMISSUS, new species. 



Anterior wing about 5.6 mm. long, a little over 2 mm. wide ; thinly 

 hairy; apical portion subcuneate, but apex blunt. Thorax about 2 

 mm. long. Part of a long antenna, and a leg showing a large spur 

 of the usual type, can be seen. All five apical forks present in an- 

 terior wing; discoidal cell long-cuneate, closed at apex; no darkened 

 pterostigma, but a cross vein between Rj and subcosta; anal cell 



