172 THE UNIVERSITY SCIENCE BULLETIN. 



Notonecta lutea Muller 1776. 



O. F. Muller, Zoologia Danise Prodromus, 1776. 



"Head large, notocephalic lateral margins slightly diverging from the 

 base, vertex tvv^o to two and a quarter times as wide as synthlipsis. En- 

 tirely luteous (except the dark claret eyes, occasional dark -brown mark- 

 ings along the sutures of the clavus, etc., the bronze-brown sternal hair- 

 tufts, the black unguiculi and venter) . Scutellum a third wider than long. 

 Exterior lobe of membrane about half the size of the interior lobe and 

 obviously not so long. Alar nervures luteous. Pedes; spine on inter- 

 mediate tibia large, acute, black-tipped. 



"Long., 13 to 17.1 mm.; lat., 4.5 to 5.5 mm." — Bueno and Kirkaldy. 



Localities: Bearfoot Mountains, B. C, North America. This is a 

 Palearctic species noted for the first time in this country by Bueno in 

 the Ent. Neivs for June, 1904. Its former range in Europe is given as 

 Lapland, Finland, where it is general but rare, Sweden, Bohemia and 

 Austria. In Asia it is recorded for Siberia. 



Notonecta shooterii Uhler 1894. 



Uhler, Proc. Calif. Acad. Sei., 2d ser., vol. 4, p. 292. 



"Head short, notocephalic lateral margins slightly diverging from the 

 base and slightly converging towards the vertex, which is about one-third 

 larger than the synthlipsis. Pronotum large, rather longer in pro- 

 portion to its width than in the other species, lateral and humeral mar- 

 gins sinuate. Scutellum small, nearly one-third shorter than the meta- 

 notum; black, base purple-browTi. Sterna dull ivory-white, corium more 

 or less concolorous, forming with the clavus a blotch of varying extent, 

 and usually with a whitish spot along the apical margin, the claval and 

 corial markings very similarly disposed to those of N. triguttata ; apex 

 of membrane, smoky. The hemelytra vary, however, very much, being 

 quite violet black in some individuals (melsena, var. nov.), while in others 

 they are concolorous pale luteous. Membrane lobes always subequal in 

 ordinary forms; generally unequal in the leucochroic varieties {ochrothoe, 

 var. nov.), and rarely subequal {tearca, var. nov.). Alar nervures rich 

 brown. Pedes: intermediate coxae black, tibial spur small, rather blunt. 

 Abdominis dorsum: segments 1 black, 2-5 violet-brown (the fifth apically 

 black) , 6 blackish, genital segments greenish-testaceous, all the segments 

 more or less dull blackish laterally. Venter varying from green to black, 

 carina and cilia black." 



"Long., 8 to 13 mm.; lat. pron., 4 to 4.7 mm." — Bueno and Kirkaldy. 



Localities: California, Mexico and Central America. 

 Notonecta montezuma Kirkaldy 1897. 



Kirkaldy, Tr. Ent. Soc. London, 1897, p. 402. 



"Head narrow at base, similar to that of N. mexicana, notocephalic 

 lateral margins fairly straight, diverging from the base, vertex two and 

 a half to three times as wide as synthlipsis. Hemelytra orange-red, 

 suffused (especially marginally) vdth crimson, and sparingly and irregu- 

 larly marked with black; membrane bluish-black, apex brownish-black, 

 lobes subequal. Pedes: coxas brownish-black, intermediate tibial spur, 

 small, rather blunt. Abdominis dorsum : segment 1 black, 2 sordid testa- 

 ceous, suffused with crimson and margin with black. Venter black. 



"Long., 13.1 to 14 mm.; lat., 4.7 to 5 mm." — Bueno and Kirkaldy. 



Localities: California, Mexico. A rare species, only two specimens 

 in collections, according to Bueno. The type is from Mexico. 



