Sphyrocoris Mayr, 1864

Eger, J. E, 2012, The Genus Sphyrocoris Mayr (Heteroptera: Scutelleridae: Pachycorinae), The Great Lakes Entomologist 45, pp. 235-250 : 246

Sphyrocoris Mayr

Sphyrocoris Mayr, 1864:904 ; Mayr, 1866:16 (keyed); Stål, 1867:495 (keyed); Schouteden, 1904:58-59 (keyed, species listed); Van Duzee, 1904:15-16; Kirkaldy, 1909:279; Van Duzee, 1917:8; Hart, 1919:168 (keyed); Blatchley, 1926:42 (keyed - Florida); Barber and Bruner, 1932:241 (keyed - Cuba); Torre-Bueno, 1939:169-170 (key to US species); Barber, 1939:278 (keyed - Puerto Rico); Lattin, 1964:161-165 (keyed, key to US species); Froeschner, 1988:691.

DIAGNOSIS: Small to medium size, body convex, broadly oval, dorsum moderately punctate, fine setae usually present in punctations. Ventral puncta-tion dense, sparse mesially on abdomen. Head triangular, broadly to narrowly rounded, slightly to moderately convex above, porrect, wider across eyes than long, moderately narrowed anterad of eyes, tylus surpassing juga by less than its width. Antennae five segmented, segments 4 and 5 slightly flattened. Scutel-lum slightly longer than wide, hemelytra exposed beyond middle of scutellum, connexiva narrowly exposed.

Anterolateral pronotal margins nearly straight. Ostiolar orifices closer to metacoxae than to lateral margins of metapleura; ostiolar canal narrow basally, long, each expanded apically as large, poorly defined anteriorly directed lobe. Prosternum strongly sulcate, developed laterally into distinct carinae, mesosternum shallowly sulcate, metasternum flat or shallowly concave. Ab-dominal sterna not sulcate, lateral margins entire. Superior surfaces of tibiae sulcate. Male genital cup exposed. Proctiger simple. Aedeagus with two pairs of conjunctival appendages, first pair entirely membranous, second pair sclero-tized apically. Parameres uncinate. Female genital plates simple. Dilation of spermathecal duct irregular, spermathecal pump with only proximal flange developed, spermathecal bulb digitiform.

TYPE SPECIES: Pachycoris obliquus by reason of monotypy.

COMMENT: The shape of the ostiolar canal ( Fig. 10 ) is unique among New World Scutelleridae .

Figures

Figures 7-10. Sphyrocoris obliquus. 7-8) head, dorsal aspect; 9-10) head, lateral aspect; 7, 9) southeastern US; 8, 10) southwestern US. Scales = 0.5 mm.