60 INSECUTOR INSCITI^ MENSTRITUS 



Plummer's Island is the type locality; recorded also from 

 Illinois. 



28. Thrips winnemaruu Hood. — May 19 ; two females (the 

 types), taken in flowers of water-leaf (Hydro phyllum virgini- 

 cum L.). Known only from Plummer's Island, Maryland. 



29. Thrips dbdominalis Crawford. — April 6-20; several fe- 

 males in flowers of Senecio and Saxifraga. Recorded from 

 Mexico, Oklahoma, Florida, Georgia, and Virginia ; occurs also 

 in Maryland, Illinois, Kansas, and Texas (coll. Hood), often 

 common in various flowers. 



30. Plesiothrips per plexus (Beach). — July 27-September 

 14 ; three females, from axils of grass. Recorded from Iowa, j 

 Massachusetts, Florida, and Tennessee; occurs also in Mary- 

 land, Illinois, and Texas (coll. Hood). 



31. Microthrips piercei Morgan. — September 1-14 ; both | 

 sexes, often abundant on the under surface of leaves of leaf- 

 cup (Polymnia sp.) and rosin weed (Silphium trifoliatum L.). 

 Recorded from Texas and Tennessee; occurs also in Virginia 

 and Maryland (coll. Hood). 



Family MEROTHRIPID.^ Hood 



32. Merothrips morgani Hood. — October 5 ; one female, un- 

 der bark on fungus-covered branch of willow. Recorded from 

 Illinois, Kentucky, and the District of Columbia ; one female 

 at hand from Pine Key, Florida, January, 1914, was found by 

 Mr. R. C. Shannon in shells and debris taken by Mr. John B. 

 Henderson. 



Suborder TUBULIFERA Haliday 



Superfamily PHLCEOTHRIPOIDEA Hood 



Family PHLCEOTHRIPID^ Uzel 



33. Haplothrips statices Haliday. — May 8 ; one female, prob- 

 ably in flight. An abundant, destructive species, described by 

 Osborn under the name nigra but positively identical with the 

 European statices.^ It has been recorded in the United States 



iHood, Ins. Insc. Menstr., Vol. II, 1914, p. 19. 



\ 



