608 



FAMILY XXI. — N^EOGEID^. 



also occasionally noted gliding over the surface of pond waters 

 or crawling over the mud flats adjacent thereto. Ranges from 

 Quebec and New England west to Illinois, Colorado and Wash- 

 ington and south to Florida, Guatemala and Grenada. Uhler 

 records it as being taken at "Grenada at the roots of grass on 

 muddy ground near pools of water," and states that "in Mary- 

 land the unwinged individuals may be found skimming over the 

 surface of quiet water from spring until the end of summer." 

 The white spots of membrane vary much in distinctness. But 

 two of the 20 specimens at hand are brachypterous. 



583 (813). N^eogeus consolidus (Uhler), 1894a, 222. 



Smaller and more oval than concinnus. Pale to reddish-brown, finely 

 pubescent, when fresh covered with a whitish bloom ; beak, buccuke and 

 legs pale brownish-yellow, the knees and tarsi often darker; clavus and 



corium with pale markings as in 

 key; membrane with four white 

 marks, the one at middle of base 

 in the form of an oblong curved 

 spot, this followed near apex by a 

 longer, narrower one, and opposite 

 the interval between these on each 

 side an angular or curved line. 

 Joint 1 of antennae one-third long- 

 er than 2; 3 — 5 fuscous-brown, 3 

 Fig. 151. a, Nceogeus bilineatus and 5 subequal, 4 shorter. Beak 

 (Champ - >; u4rhamSn| ,UhU X 12 ' reaching second ventral. Prono- 



tum with disk of hind portion 

 more convex and less uneven than in concinnus, constriction of side mar- 

 gins more shallow, punctures much finer, humeral angles more rounded, 

 less outwardly projecting. Length, 1.8 — 2 mm. (Fig. 151, b) . 



Dunedin, Ft. Myers and Marco, Fla., Dec. 3 — April 21. Mount 

 Gay est., Grenada, W. I. (British Mits. Coll.). About Dunedin 

 it is often taken by sweeping low herbage along margins of 

 ponds and sometimes with Notomicrus nanulus (Lee), Bidessus 

 c.\-i</uits (Aube) and other small water beetles on the under side 

 of partly immersed boards. Described from Grenada and 

 known from Kansas, Panama and Guatemala. Its only pre- 

 vious Florida record is that of Barber from Lake Worth. 



584 ( — ). Nceogeus bilineatus (Champion), 1898, 119. 



Oblong, subparallel. Dark reddish-brown; head, propleuras, scutel- 

 lum and apical third of corium blackish ; elytra with two narrow pearly 

 white lines as in key; membrane with four vague pale spots as in con- 

 solidus, bucculse, beak and femora pale yellow, tibite and tarsi tinged 



