342 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 115 



Lectotype. — 9, White Plains, New York, in Snow Museum, Uni- 

 versity of Kansas. 



Distribution.- — United States: Maine, New Hampshire, Mas- 

 sachusetts, Vermont, Connecticut, New York, Pennsylvania, Ohio, 

 Indiana, Illinois, Iowa, Michigan, Minnesota, North Dakota, Wis- 

 consin, Nebraska, Vu-ginia, New Jersey, North Carolina, Rhode 

 Island, Idaho, Tennessee, Maryland, District of Columbia, Alaska. 

 Canada: Quebec, Ontario, Newfoundland, British Columbia 



The furcate discoidal area and rounded outer margins of the 

 pronotum separate A. lillianis from closely allied species. Host 

 records are from mosses. 



Acalypta vandykei Drake 



Plate 14 



Acalypta vandykei Drake 1928b, pp. 3, 8.— Hurd 1946, p. 463.— Drake and Ruhoff 

 1959, p. 139. 



Brachypterous form.^ — ^Elongate-ovate, dark reddish brown with 

 head and body beneath dark fuscous. Antenna with fom'th 

 segment subclavate, measurements: segment I, 0.13 mm.; II, 0.08 

 mm.; Ill, 0.38 mm.; IV, 0.20 mm. Pronotum with lateral carinae 

 parallel, slightly less raised than median carina, with nearly quadrate 

 areolae; paranotum fairly wide, triseriate in front, biseriate opposite 

 humeral angle. Hypocostal lamina uniseriate. Size and arrange- 

 ment of areolae and divisions of elytron as shown in illustration. 

 Length 1.88 mm., width (elytra) 1.10 mm. Macropterous form 

 unknown. 



HoLOTYPE. — Brachypterous cf , San Francisco County, CaUfornia, 

 in California Academy of Sciences. 



Distribution.- — California. 



This species can be separated from ^4. barheri by the characters 

 employed in the key. A. lillianis difTers from the above species by 

 having a longer and more sulcate discoidal area and jointly rounded 

 front and lateral margins of the paranotum. Collected on moss. 

 The allotype is figured. 



Acalypta vanduzeei Drake 



Plate 15 



Acalypta vanduzeei Drake 1928b, pp. 3, 8.— Hurd 1946, p. 463.— Drake and 

 Ruhoff 1959, p. 139. 



Brachypterous female. — Ovate, brown with head blackish, body 

 beneath yellowish brown. Pronotum rather short, tricarinate; 

 carinae raised anteriorly, each composed of one row of nearly quadrate 

 areolae; lateral carinae parallel, slightly less raised than median; 

 hood obtuse at apex; paranotum biseriate opposite humeral angle, 



