336 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 115 



dark fuscous, fourth segment testaceous to brown. Length 1.85-2.38 

 mm., width 1.00-1.30 mm. 



Head armed with two stout frontal spines. Antennal measurements: 

 segment I, 0.20 mm.; II, 0.09 mm.; Ill, 0.44 mm.; IV, 0.21 mm. 

 Pronotum reticulately punctate, unicarinate; median carina raised 

 anteriorly, uniseriate; hood obtusely projected forward between eyes; 

 paranotum subrectangular, mostly biseriate, triseriate in front, 

 anterolateral corner subangulate. Elytron with costal area uniseriate, 

 frequently with one to three intercalated areolae at base and occa- 

 sionally with several extra areolae a little before the apex; discoidal 

 and sutural areas wide, each five or six areolae deep in widest part. 

 Hypocostal lamina biseriate in basal third, thence posteriorly 

 uniseriate. 



HoLOTYPE. — Brachypterous 9, Goldstream, British Columbia, 

 Canadian National Collection, Ottawa, Canada. 



DisTKiBUTioN (pi. 2). — Canada: British Columbia. United States: 

 Washington, Oregon. Feeds and breeds on mosses. A brachypterous 

 female from Corvallis, Oreg., is illustrated. 



Acalypta sauteri Drake 



Plate 6 

 Acalypta sauteri Drake 1942, p. 14. — Takeya 1951, p. 6. 



Brachypterous form. — Ovate to obovate, fuscous-brown with 

 paranota and costal areas yellowish brown; body beneath dark fuscous. 

 Antennal measurements: segment I, 0.12 mm.; II, 0.12 mm.; Ill, 

 0.45 mm.; IV, 0.22 mm. Pronotum unicarinate; median carina low, 

 scarcely raised anteriorly, minutely uniseriate; paranotum wide, 

 triseriate in front, anterolateral corner angulate. Costal area com- 

 posed of one complete row of areolae, often with one or two inter- 

 calated cells at base. Hypocostal lamina biseriate basally, thence 

 posteriorly uniseriate. Length 1.65-2.21 mm., width (elytra) 1.20- 

 1.28 mm. Macropterous form unknown. 



HoLOTYPE. — Brachypterous male, Honshu, Japan (printed locality 

 label "Oayama" or "Ooyama" is an error and probably should read 

 "Ohyama"), in Drake collection (USNM). 



Distribution. — Japan: Honshu. A brachypterous 9 from Mt. 

 Ohyama, Hanagawa Prefecture, Apr. 15, 1939, taken on moss, is 

 illustrated. This species has been intercepted at New York City 

 Port-of-Entry, on moss used in the packing of dormant nursery stock 

 imported from Japan. It is very similar in general appearance to 

 A. duryi and A. saundersi, but can easily be distinguished from them 

 by the illustrations. 



