140 MAINE AGRICULTURAL DxPERIMIlNT STATION. I912. 



S. perpusilla Walker. "Length 1.5 mm. Body piceous, small and 

 slender ; feelers black ; legs brown ; thighs tawny ; wings slightly gray ; 

 the costal veins dark brown, the rest paler and more slender; poisers 

 tawny." Canada. 



S. polita Say. "Female. Length less than 4 mm. Deep black, thorax 

 and abdomen both highly polished. Body with numerous short hairs 

 which are slightly sericeous; eyes without interval above the antennae;/ 

 wings dusky, pale yellowish at base ; poisers whitish ; feet dusky towards 

 the tip; coxae and thighs yellowish white. N. W. Terr." 



5". punctata Walker. "Length 2.5 mm. Head black; feelers piceous; 

 chest very dark piceous ; abdomen dull red with a row of black spots 

 on each side ; legs tawny ; wings gray ; fore border veins dark brown^ 

 the rest as usual paler and more slender; poisers tawny. North Amer. ' 

 S. robusta Walker. "Length 4 mm. Body black, stout, pubescent; 

 a dark red line along each side; feelers black, robust; legs dark 

 piceous, rather thick; wings black, as are also the veins and the poisers. 

 Canada." 



5. rotundipennis Macq. Dipt. Exot. I. 2, 178. 1838. "Female. Lengttx 

 4.5 to 6 mm. Black, abdomen fuscous testaceous. Wings fuscous, ex- 

 terior margin, rotund. Antennae with gray reflection. Cells C and Ri 

 more brown than the others ; basal section of Rs far remote from the 

 base of cell Mi. Carolina." 



S. tilicola Loew. Mentioned in Professor Aldrich's catalogue. This 

 is an European species not yet reported from North America. 



S. vulgaris Fitch. Length 2.5 to 3 mm. Black with blackish brown 

 legs and pale thighs. Its poisers are whitish and its wings hyaline. 

 The sides of its thorax below the wings are tinged with pale, and the 

 abdomen with brown, rarely pale. N. Y., N. H." 



Type and Paratype Specimens of Neiv Species. 



The types and paratypes of the new species described in Parts 1, H, 

 in," and IV, of the "Fungus Gnats of North America" may be found 

 in the collections noted below. The following abbreviations are used : 

 J.M.A., (Prof. J. M. Aldrich's collection) ; O.A.J., (My own collection) ; 

 A.M.N. H., (American Museum of Natural History) ; B.S.N.H., (Bos- 

 ton Society of Natural History) ; C.U., (Cornell University). The 

 location of the type is given first, paratypes follow : 



Palaeoplatyura aldrichii, JMA; P. johnsonii, BSNH. 



Ceroplatus militaris, OAJ, BSNH. 



Apemon nigriventris, OAJ, CU. 



Platyura setiger, OAJ, JMA; P. mimnla, OAJ, JMA. 



P. nigrita, JMA; P. moesta, JMA; P. moerens, OAJ, JMA; P. 

 genualis, OAJ, AMNH; P. scapularis, OAJ, JMA. 



Macrocera geminata, OAJ, CU; M. formosa, var. indigena, OAJ, CU. 



Monoclona elegantula, OAJ, CU ; M. furcata OAJ. 



Sciophila galbana, OAJ, JMA; var. germana, AMNH; var. socia, 

 BSNH; S. nugax, OAJ, AMNH; S. habilis, OAJ; S. incallida, OAJ, 

 CU; S. hebes, OAJ, JMA; S. novata, OAJ, CU ; S. impar, OAJ, AMNH, 

 JMA; S. severa, OAJ; S. similis, OAJ. 



