100 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxv, 



yellowish; pronotum frequently extending consideral)ly over fron1!| 

 edge of niesonotal plate. Mesothorax al^out one and one-third timesj 

 as wide us the prothorax and considerably wider than metathoraxj 

 except at its anterior edge; anterior angles of mesothorax very acute;: 

 no conspicuously large spines upon pterothorax. Wings sometimes 

 reduced: when present, long and about one-thirteenth as broad ir 

 middle as long; fore wings shaded with gray, pale brownish along 

 veins clear at base; second longitudinal vein arises at about two-fifth.- 

 the length of the wing, its origin indistinct. Spines upon all veim 

 quite long and slender, but not thickly set or very conspicuous; costa 

 bears seventeen to nineteen, fore vein eight or nine, hind vein eight 

 or nine. Wing pads, when present, not overreaching the pterothorax, 

 Let's moderately strong, but not thickened; femora and tibiae darti 

 brown like body; inside of fore tibite, extreme tips of the others anc 

 all tarsi pale gray or yellow; legs scatteringly set with line spines 

 apex of hind tibite alone bearing a pair of stouter spines. 



Abdomen ver}^ long — almost twice as long as head and thora? 

 together — and three times as long as broad, nearly cylindrical, taper 

 ing abrupth^ from anterior edge of eighth segment to the apex; seg 

 ments overlapping more or less when al)domen contains no eggs; coloi 

 uniform dark brown without conspicuous markings or spines excep 

 those upon two terminal segments, which are quite long and slender. 



Described from six females, five of them long-winged. 



Cofyj)e.— Cat No. 6329, U.S.N.M. 



Male unknown. 



This species agrees very closel}^ in most respects with B. Jorigistylosi 

 Uzel, but differs in the following points: Head as wide as long; secom- 

 antennal segment somewhat shorter than third, fourth, and sixth; fiftl 

 segment lighter colored at tip than sixth. Bod}^ length, average (exclu 

 sive of egg-filled females), 1.25 mm. 



Food plant. — Grass. 



7f(il>/f<tt, — jMassuchusetts. 



Life liistory unknown. 



Genus ANAPHOTHRIPS Uzel. 



Ocelli present. Antenmv eight segmented (apparently nine i 

 A. driatm). Maxillary palpi three segmented. Prothorax about a 

 long as head. Legs unarmed. Wings usually present (usually abseii 

 in the fall generations of striatus)., with two longitudinal veins; spine 

 upon veins small and inconspicuous. No stout spines at angles of pre 

 thorax; all spines on body short except the anal spines, which areshoi 

 and slender (in fitrlaius they are short and stout). 



IVIales have usually two pairs of very short, stout spines upon th 

 ninth abdominal segment above, of which the anterior pair is stronge 

 than the posterior. 



