Dilasia sulcicollis ( Reuter, 1884 ) Carpintero, 2014

Carpintero, Diego Leonardo, 2014, Western Hemisphere Lasiochilinae (Hemiptera: Heteroptera: Anthocoridae) with comments on some extralimital species and some considerations on suprageneric relationships, Zootaxa 3871 (1), pp. 1-87 : 40-41

Dilasia sulcicollis ( Reuter, 1884) n. comb.

( Fig. 141 )

Lasiochilus sulcicollis Reuter, 1884: 19 .

Diagnostic characters: Measurements, see Table IV. Male: Characterized by the following combination of characters: head and pronotum, antennal segment I, apex of segment II, outer margin of cuneus, femora and underside of body reddish-brown; hemelytra dark brown; exocorion and apical fringe on corion, tibiae, basal half of antennal segment II and labium, paler. Flattened dorso-ventrally; antennal segment II slightly longer than length of head, thickened at apex; antennal segments (I:II:III:IV) 1: 2.8: 2.4: 2.4; head prolonged anteriorly from base of antennae; hemelytra smooth, dorsal pilosity medium-sized, sparse; forefemora slightly thickened; foretibiae armed with row of long spines on inner margin, pads large; ostiolar peritreme opening rounded apically, flat; meso- and metasternum not sulcate medially, the latter elongated apically; long, thick copulatory spines on left margin of sternite VI, ( Fig. 163 ); pygophore with aedeagus not showing a processus penniformis ( Fig. 164 ); left paramere elongate, straight, apically subquadrate ( Fig. 165 ). Female: Similar to male in measurements and coloration. Antennal segments (I:II:III:IV) 1: 2.8: 2.5: 1.9.

Distribution: Brazil, Venezuela. ( Fig. 144 ).

Material examined: BRAZIL: ♂ ♀ on bromeliads, Hoboken , N. J., 3-V-1941. USNM ; 1♂ Idem. (slidemounted). MACN ; ♀ ♂ same locality, on Tillandsia , 29-X-1940. USNM ; ♂ Campos de Jordão, Est. São Paulo, 1600m, III-1945, Wygodzinsky leg. MACN ; VENEZUELA: ♂ Tacariguá, Mr., 1-III-1949, M. Villegas, R. café, Asc. # 183931. USNM .

Discussion: This is the sole dorso-ventrally flattened species in Dilasia . This species have also a median sulcus on anterior lobe of pronotum and a typical left paramere, subquadrate apically.

Figures

FIGURE 144. Distribution of Dilasia (III).

FIGURES 137–143. Species of genus Dilasia. 3. 137, D. reuteri Female (2.63 mm); 138, Idem. Syntype; 139, D. similis Female, holotype; 140, D. sulcata Female (2.31 mm); 141, D. sulcicollis Male (3.05 mm); 142, D. unicolor Male; 143, D. varicolor Female (2.12 mm).

FIGURES 163–165. D. sulcicollis. Male. 163, Copulatory spines (Csp); 164, Pygophore showing left paramere (LP); 165, Detail of left paramere.