﻿24 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL. 
  MUSEUM 
  vol.67 
  

  

  1. 
  MICROERACON 
  QUINNIPIACORUM 
  Viereck 
  

  

  Microbracon 
  quinnipincorum 
  Viereck, 
  Bull. 
  22, 
  Conn. 
  Geol. 
  and 
  Nat. 
  Hist. 
  

   Survey, 
  1917 
  (1916), 
  p. 
  207. 
  

  

  Type. 
  — 
  In 
  the 
  Connecticut 
  Agricultural 
  Experiment 
  Station 
  at 
  

   New 
  Haven. 
  

  

  The 
  antennae 
  of 
  the 
  type 
  are 
  31-segmented 
  and 
  slender, 
  the 
  basal 
  

   flagellar 
  segments 
  twice, 
  or 
  nearly 
  twice, 
  as 
  long 
  as 
  broad; 
  irons, 
  

   vertex, 
  mesoscutum, 
  scutellum, 
  pro-, 
  meso-, 
  and 
  metapleura, 
  propo- 
  

   deum 
  and 
  dorsum 
  of 
  abdomen 
  entirely, 
  uniformly 
  finely 
  punctate 
  or 
  

   reticulate 
  and 
  opaque; 
  parapsidal 
  grooves 
  pubescent; 
  the 
  surface 
  of 
  

   the 
  middle 
  lobe 
  of 
  mesoscutum 
  bare; 
  propodeum 
  with 
  a 
  stub 
  of 
  a 
  

   median 
  ridge 
  at 
  apex; 
  wings 
  only 
  very 
  slightly 
  dusky; 
  second 
  ab- 
  

   scissa 
  of 
  radius 
  at 
  least 
  twice 
  as 
  long 
  as 
  the 
  first, 
  the 
  first 
  and 
  second 
  

   abscissae 
  combined 
  scarcely 
  as 
  long 
  as 
  the 
  third; 
  second 
  abdominal 
  

   tergite 
  much 
  longer 
  than 
  the 
  third; 
  in 
  the 
  type 
  the 
  ovipositor 
  sheaths 
  

   project 
  scarcely 
  the 
  length 
  of 
  the 
  first 
  abdominal 
  tergite. 
  Ferrugin- 
  

   ous; 
  head, 
  thorax 
  and 
  base 
  of 
  abdomen 
  more 
  or 
  less 
  marked 
  Avith 
  

   blackish. 
  A 
  small 
  species, 
  about 
  2 
  mm. 
  in 
  length. 
  

  

  Distribution. 
  — 
  Connecticut, 
  Maryland. 
  

  

  Host. 
  — 
  Unknown. 
  

  

  Known 
  only 
  from 
  the 
  type, 
  and 
  one 
  female 
  specimen 
  in 
  the 
  United 
  

   States 
  National 
  Museum, 
  labeled 
  " 
  Md., 
  Collection 
  Ashmead." 
  

  

  2. 
  MICROBRACON 
  PUNCTATUS, 
  new 
  species 
  

  

  Female. 
  — 
  Length 
  2.8 
  mm. 
  Head 
  rather 
  thick 
  antero-posteriorly 
  

   at 
  insertion 
  of 
  antennae, 
  the 
  face 
  receding 
  somewhat 
  below; 
  face 
  

   including 
  clypeus, 
  frons, 
  and 
  vertex 
  finely 
  closely 
  punctate 
  and 
  

   opaque; 
  frons 
  with 
  a 
  distinct 
  median 
  groove 
  from 
  anterior 
  ocellus 
  

   to 
  the 
  antennae; 
  antennae 
  28-segmented, 
  nearly 
  or 
  quite 
  as 
  long 
  as 
  

   the 
  body, 
  the 
  tw'o 
  basal 
  flagellar 
  segments 
  about 
  twice 
  as 
  long 
  as 
  

   wide, 
  all 
  the 
  following 
  much 
  longer 
  than 
  broad; 
  mesoscutum 
  and 
  

   scutellum, 
  pro-, 
  meso- 
  and 
  metapleura, 
  propodeum, 
  and 
  posterior 
  

   coxae 
  all 
  finely 
  evenly 
  punctate 
  and 
  opaque; 
  propodeum 
  with 
  a 
  dis- 
  

   tinct 
  complete 
  median 
  longitudinal 
  groove; 
  pubescence 
  on 
  mesono- 
  

   tum 
  sparse 
  and 
  restricted 
  to 
  the 
  parapsidal 
  grooves; 
  second 
  abscissa 
  

   of 
  radius 
  more 
  than 
  twice 
  as 
  long 
  as 
  the 
  first, 
  the 
  latter 
  about 
  half 
  

   the 
  first 
  intercubitus; 
  third 
  abscissa 
  of 
  radius 
  about 
  as 
  long 
  as 
  the 
  

   first 
  and 
  second 
  abscissae 
  combined; 
  last 
  abscissa 
  of 
  cubitus 
  about 
  

   as 
  long 
  as 
  the 
  preceding 
  abscissa 
  ; 
  the 
  portion 
  of 
  cubitus 
  between 
  re- 
  

   current 
  and 
  first 
  intercubitus 
  very 
  short, 
  the 
  recurrent 
  nearly 
  inter- 
  

   stitial 
  with 
  first 
  intercubitus; 
  abdomen 
  ovate; 
  first 
  tergite 
  evenly 
  

   punctate, 
  opaque; 
  the 
  second 
  and 
  third 
  finely 
  punctate 
  or 
  minutely 
  

   granular, 
  the 
  posterior 
  tergites 
  much 
  more 
  weakly 
  so 
  and 
  more 
  shin- 
  

   ing; 
  ovipositor 
  sheaths 
  as 
  long 
  as 
  the 
  abdomen 
  beyond 
  first 
  tergite. 
  

  

  