156 Proceedings of the Biological Society of Washington. 
Haplothrips graminis Hood. 
1912. Haplothrips graminis Hood, Proc. Biol. Soc. WaHli., vol. XXV, p. 
(i9, fig. 3. 
Xotwithstanding its several structural differentia, this species bears a 
close superficial resein))lance to H. statices (Haliday), though apparently 
more southern in distribution. Specimens from Auburn, Alabama, were 
collected August, 1908, by Dr. W. E. Hinds, and sent me under the name 
Anthothrips niger. It has also been taken at Marshalltown, Iowa, by 
Mr. E. 0. G. Kelly. 
Haplothrips nubilipennis sp. nov. 
(PI. 3, figs. 3 and 4.) 
Er/nafe.—Length about 1.0 mm. Color blackish browu, with maroon 
hypodermal pigmentatif)n in head, thorax, and first nine segments of 
abdomen; segments I and 2 of anteniue about concolorous with head; 
.3-0 j^ellowish brown, irregularly clouded with darker; 7 and 8 uniform 
dark yellowish brown, paler than the two basal segments; all tarsi and 
apex of fore tibite, bright yellow. 
Head about 1..34 times as long as wide, broadest at about middle; 
cheeks gently rounded, slightly convergent posteriorly; vertex slightly 
produced, the anterior ocellus overhanging; dorsal and lateral surfaces 
with a few, very weak, auastomozing lines, sparsely and briefly spinose; 
postocular bristles two thirds as long as eyes, blunt. Eyes one-third as 
long as head. Posterior ocelli opposite anterior third of ej'es. Anteniifc 
1.8 times as long as head, slender, their form and structure well shown 
in figures (PI. tigs. 3 and 4); segment three conical, symmetrical, 
about twice as long as greatest width, subequal in length and width to 2 
and 4, wuth a sense cone on outer, and one on inner, surface. Color of 
anteniue: Segments 1 and 2 dark blackish brown, the former pale at 
b<lse, the latter at middle and apex; 3—6 yellowish brown, irregularly 
clouded with darker; 7 and 8 uniform dark yellowish brown, paler than 
the two basal segments. Mouth cone normal to genus. 
Prothorax about .(> as long as head and (inclusive of coxa?) about 2.2 
times as wide as long, surface nearly smooth ; anterior marginal bristles 
greatly reduced iu size and barely visible; other blunt, the two pairs at 
the posterior angles about as long as postoculars, midlaterals and anterior 
angulars two-thirds as long. Mhngs distinctly narrowed at middle, 
clouded with gray, the fore pair with a nearly black, sharply defined patch 
at base and another jjaler and more suffused one just before middle; four 
interlocated hairs on posterior margin near apex. Eore tarsi with a 
small, acute tooth. 
Abdomen slightly wider than pterothorax. Tube about .04 as long as 
head, just twice as long as l)asal width, and about twice as wide at base 
as at apex. Abdominal bristles pointed; terminal bristles nearly as long 
as tube. 
Measurements of holotype; Length 1.61mm.; head, length .226 mm., 
width .168 mm.; prothorax, length .138 mm., width (inclusive of coxfe) 
