1878.] 443 lUhler. 



lims in length. Notonecta lineata Forster, Nov. Ins. Spec. p. 70, is 

 probably one of the varieties of this species, but the description is 

 not full enough to limit it with precision. The length given by this 

 author, \ inch, is erroneous; it is far too small for any species yet 

 known to science. Gmelin in Linn. Systema Naturae, vol. iv., 2119, 

 unwarrantably changes Forster's specific name to N. noveboracensis^ 

 while, at the same time he gives only a part of the description from 

 that author. 

 3. N. irrorata. 



Closely resembling N. insulata Kirby, but proportionally more 

 robust. Velvety black beneath and on the hemelytra. Face white, 

 eyes more closely approaching at base, the occipital, transverse car- 

 ina absent; vertex coarsely punctured, the punctures continued for- 

 ward and downward in double or triple series adjacent to the eyes 

 The longitudinal ellipse of the face faintly punctured with brown, 

 and sometimes, in addition, a brown streak reaches to tip of the cly- 

 peus. Pronotum smooth, yellowish, obsoletely, coarsely punctured, 

 transversely, rather deeply impressed, anterior to which transversely 

 wrinkled; sometimes the anterior and posterior margins embrowned, 

 and with a round spot near the middle anteriorly; the lateral margins 

 elevated, sinuated anteriorly, the anterior angles blunt, posterior ones 

 prominent, rounded, the posthumeral margin sinuated, the posterior 

 margin not quite straight. Scutellum dull black, not apparently 

 punctured. Propleura smooth, yellow, with the lower margin black; 

 pectus black, clothed with very long hairs. Legs orange-yellow, or 

 pale piceous, sometimes tinged with green, and streaked with brown; 

 the bristles and teeth dark brown, the eiliae golden rufo-flavous ; the 

 nails piceous. Hemelytra velvety black, minutely golden pubescent; 

 finely punctured; the corium confluently dotted and spotted with 

 ochreous, particularly at base, the spots behind the middle and those 

 adjoining the costal margin few and remote; embolium ochreous mar- 

 gined with black ; membrane black, more or less flecked with och- 

 reous, the tip pale brown, with a paler spot before it. Venter black, 

 polished, having dense, long, blackish eiliae on the middle ridge and 

 lateral suture; the connexivum whitish or green, closely punctured, 

 with the sutures of the segments blackish; tergum ochreous, clouded 

 with fuscous at base and tip, the posterior margins of the segments 

 fuscous; the superior surface of the connexivum ochreous, with quad- 

 rate, fuscous spots. Length, 13-15^ millims. Humeral breadth, 4^-5 

 millims. 



•« Ipswich, March, Mr. Oakes. Milton, Mass, April 22, 1829." 



