Hood — Sfiidirx in TnJ>nlIfrronx I'lnjxdwyptcro. 
171 
Xyack, Xew York, 1.S84, .1. 1>. Zahriskie, 1 femali', “ex. nest ol Ceraiina 
c/v(;>/a Hay ” (coll. U. S. Xational IMuseuni); Ithaca, X. Y., March 24, 
11)05, ^Miss Fletcher, 2 females, “ ftH)m liole in dead twig” (from coll. J.C. 
Kaure); Plummer’s Island, Maryland (n(*ar AVashington, !).(>,), June 
8-OctoV)er 12, W. L. AIc.Vtee and .1. D. llooil, hoth sexes and many 
nymphs from dead leaves in fork of willow tree, and from dead willow 
branch; Yienna, A’irginia, April 7 and 11), IDP), U. A. Cushman, 2 
females, in old galls of (inorimoschema galJivsolulaginis on ^ohlen rod; 
Carhondale, Illinois, July 30, 1001), L. M. Smith, 1 female, “in jar in 
which twig-girdlers {Oncideres cinguJata Say) were being bred from i)er- 
simmon twigs” ; Muncie, Illinois, July 24, 1001), J. I). Hood, 1 female, 
in l)urrow in dead willow stem, with numerous eggs and young nymphs; 
St, Paul, Minnesota, September 11), 1008, IT. J. Franklin, 2 females, from 
dead limb of white birch (I female now in writer’s collection). 
In the original description this species was placed with doubt in the 
<^enus Megalothrrps Uzel and the statement made that the generic position 
must remain uncertain until the discovery of the male. Two years later 
Mr. D. L. Crawford remarked parenthetically that the species is “ really 
an IdoIotJirips” and prophecied that “the males of I. spinosus will be 
found to have a large tarsal tooth.” It was thus of great interest to me 
to note the prominent projections on the sixth abdominal segment of the 
males recorded above, nearly as shown by Uzel in his figure of Megalo- 
thripx bonannri, which make certaii^ the reference of this species to 
Megalothrips. 
Exiu.axatiox ok Pi.atks. 
The minor bristles and spines have usually been omitted in the ligures 
on the following tliree plates, because of their unimportance in the 
differentiation of species and tlie impossibility of observing them except 
in specially ])repared mounts. 
Pi,ATI-: III. 
Fig. 1. Trichothrlps karngi major subsp. nov. Head and prothorax, 
female (holotype). 
2. Trichothrips zonatus sp. nov. Head and prothorax, female 
(holotype). 
3. JIaplothrips nuhilipennis sp. nov. Head and prothorax, female 
(holotype). 
4. Uaplothrips nuhilipennis. Segment :’> of left antenna, female 
(holotype). 
5. Uaplothrips faurei^.p. now. Segment 3. of left antenna, female 
(holotype). 
6. Haplothrips faurei. Head and prothorax, female (holotype). 
