THE ENITHARES (Hemiptera-Heteroptera: Notonectidae) OF THE ...

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376 Pacific Insects Vol. 10, no. 2 nudum).—Kirkaldy, 1900, Entomologist 33 : 10 (transferred to Enithares^). Notonecta templetonii Kirby, 1891, J. Linn. Soc. (zool.) 24 : 126. New Synonymy. Enithares templetonii : Kirkaldy, 1900, Entomologist 33 : 10; 1904, Wien. Ent. Ztg. 23 : 97, 102 & 133.—Distant, 1906, Fauna Brit. India, Rhynchota 3 : 43-44 (ex parte). —Paiva, 1918, Rec. Indian Mus. 14 : 32 (ex parte).- In Annandale, 1919, Rec. Indian Mus. 16 : 156 (ex parte). —Hutchinson, 1933, Rec. Indian Mus. 35: 394-95, fig. 2-4a (ex parte). —Lundblad, 1933, Arch. Hydrobiol. Suppl. 12 : 146, listed only. Fig. 49-56. E. simplex (Kirby)
1968 Lansbury : Oriental Enithares (<strong>Notonectidae</strong>) 377 Enithares triangularis var simplex Kirkaldy, 1904, Wien. Ent. Ztg. 23 : 97, 100 & 133.—Lundblad, 1933, Arch. Hydrobiol. Suppl. 12 : 146; listed only. Enithares triangularis : Distant, 1906, Fauna Brit. India, Rhynchota 3 : 44 (ex parte).—Hutchinson, 1933, Rec. Indian Mus. 35 : 395 (ex parte). #6\ Length 12.5-14.5 mm, maximum width 3.5-6 mm; #£, 10.5-12 mm, maximum width 4.5-5 mm. Color : Pale form : pale yellowish brown, sometimes with anterior 1/3 grayish. Dark form: Eyes dark brown to black. Vertex yellowish brown. Anterior 1/2 of pronotum pale brown to whitish yellow, sometimes with a median brown blotch. Pronotum posteriorly hyaline grayish appearing dark brown to black due to scutellar color showing through. Scutellum black with 2 pear-shaped linear blotches. Clavus hyaline grayish, black along margins adjacent to scutellum and hemelytral commissure. Corium grayish yellow, hyaline, black along margins of membrane. Opaque zone of membrane black, anterior and posterior lobes dark smoky brown. Abdomen ventrally black with legs, keel and segmental margins dark brown. Structural characters : Head in dorsal view rounded (fig. 57 & 59). Greatest width of head 3/4 pronotal humeral width; just less than 3X anterior width of vertex and varying between —3X to slightly more than 3X median head length. Synthlipsis about 2/3 anterior width of vertex. Median head length less than median pronotal length. Head length to anterior width of vertex variable, can be less, equal to or longer than anterior width of vertex. Pronotal humeral width just over 3X median length; lateral margins diverging, just over 1/2 median length; posterior margin of # almost straight, £ centrally emarginate. Dorsal margin of pronotal fovea directed caudad before turning laterad behind eyes. Nodal furrow basally straight, apical 1/3 inclined cephalad, less than its own length removed from membranal suture. Labrum of
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