﻿AQUATIC 
  INSECTS 
  IN 
  THE 
  ADIRONDACKS 
  585 
  

  

  its 
  lower 
  margin 
  strongly 
  oblique 
  and 
  straight, 
  and 
  its 
  apex 
  broadly- 
  

   rounded 
  ; 
  the 
  veins 
  and 
  stigma 
  black, 
  the 
  costa 
  pale 
  at 
  base. 
  Lengthy 
  

   7 
  mm. 
  Habitat, 
  Saranac 
  Inn 
  N. 
  Y. 
  

  

  Taxonus 
  innominatus 
  sp. 
  uov. 
  

   ? 
  Black, 
  with 
  the 
  following 
  parts 
  rufous: 
  the 
  labrum, 
  the 
  apical 
  half 
  

   of 
  the 
  mandibles, 
  the 
  femora, 
  the 
  tibia, 
  the 
  front 
  tarsi, 
  the 
  apex 
  of 
  the 
  

   second, 
  and 
  the 
  entire 
  third 
  and 
  fourth 
  abdominal 
  segments; 
  the 
  tegulae, 
  

   the 
  apices 
  of 
  the 
  front 
  and 
  middle 
  coxae, 
  and 
  trochanters 
  lutescent 
  ; 
  

   the 
  clypeus 
  deeply 
  roundly 
  emarginate 
  ; 
  the 
  third 
  segment 
  of 
  the 
  antennae 
  

   longer 
  than 
  the 
  fourth; 
  wing 
  veins 
  blackish. 
  Length, 
  8 
  mm. 
  Habitat,. 
  

   Saranac 
  Inn 
  N. 
  Y. 
  

  

  ORIGINAL 
  DESCRIPTIONS 
  OF 
  NEW 
  DIPTERA 
  

  

  BY 
  D. 
  W. 
  COQUILLETT, 
  U. 
  S. 
  NATIONAL 
  MUSEUM, 
  WASHINGTON 
  D. 
  C. 
  

  

  ZABRACHiA, 
  gcu. 
  uov. 
  Stratiomyiidae 
  

   Closely 
  related 
  to 
  Pachygaster, 
  differing 
  chiefly 
  in 
  the 
  shortened^ 
  

   simple 
  third 
  vein. 
  Head 
  in 
  profile 
  only 
  slightly 
  higher 
  than 
  long; 
  face 
  

   and 
  lower 
  part 
  of 
  the 
  front 
  almost 
  perpendicular 
  ; 
  eyes 
  nearly 
  orbicular 
  ; 
  

   antennae 
  shorter 
  than 
  the 
  head, 
  the 
  complex 
  third 
  joint 
  transversely 
  el- 
  

   liptic, 
  the 
  apical, 
  slender 
  style 
  slightly 
  longer 
  than 
  remainder 
  of 
  antennae 
  ; 
  

   third 
  vein 
  of 
  wings 
  simple, 
  terminating 
  at 
  about 
  one 
  third 
  of 
  the 
  length 
  of 
  

   the 
  second 
  vein 
  beyond 
  the 
  apex 
  of 
  the 
  latter; 
  four 
  posterior 
  cells, 
  a 
  part 
  

   of 
  each 
  of 
  them 
  bordering 
  on 
  the 
  discal 
  cell. 
  Type, 
  the 
  following 
  

   species. 
  

  

  Zabrachia 
  polita 
  sp. 
  nov. 
  

  

  Black, 
  polished, 
  the 
  antennae 
  except 
  the 
  styles, 
  also 
  the 
  tibiae, 
  tarsi 
  and 
  

   apices 
  of 
  femora, 
  yellow, 
  knobs 
  of 
  halteres 
  white, 
  each 
  marked 
  with 
  a 
  

   black 
  spot 
  on 
  basal 
  half 
  of 
  the 
  upper 
  side 
  ; 
  wings 
  hyahne, 
  stigma 
  pale 
  

   yellowish; 
  length, 
  2.5 
  mm. 
  Two 
  females, 
  collected 
  Aug. 
  8, 
  1900, 
  by 
  

   Prof. 
  James 
  G. 
  Needham. 
  

  

  Type. 
  Cat. 
  no. 
  5344, 
  U. 
  S. 
  national 
  museum 
  

  

  Habitat. 
  Saranac 
  Inn 
  N. 
  Y. 
  

  

  ROEDERiODES, 
  gcu. 
  uov. 
  Empididae 
  

   Closely 
  related 
  to 
  Clinocera. 
  Face 
  bare, 
  not 
  separated 
  from 
  the 
  

   cheeks 
  by 
  a 
  groove; 
  cheeks 
  t\vo 
  thirds 
  as 
  broad 
  as 
  the 
  eye 
  hight; 
  pro- 
  

   boscis 
  nearly 
  as 
  long 
  as 
  hight 
  of 
  head, 
  rigid, 
  the 
  labella 
  not 
  developed; 
  

   third 
  joint 
  of 
  antennae 
  oval, 
  pointed 
  at 
  the 
  apex, 
  the 
  apical 
  style 
  about 
  

   as 
  long 
  as 
  remainder 
  of 
  antennae; 
  no 
  acrostichal 
  bristles, 
  scutellum 
  

   bearing 
  bristly 
  hairs 
  in 
  addition 
  to 
  the 
  two 
  marginal 
  bristles 
  ; 
  wings 
  

   destitute 
  of 
  a 
  brown 
  stigmal 
  spot, 
  third 
  vein 
  forked, 
  discal 
  cell 
  complete, 
  

   sending 
  two 
  veins 
  to 
  the 
  wing 
  margin, 
  of 
  which 
  the 
  upper 
  vein 
  is 
  forked^ 
  

  

  