Dilasia unicolor ( Reuter, 1884 )

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 : 41-42

Dilasia unicolor ( Reuter, 1884)

( Fig. 142 )

Lasiochilus unicolor Reuter, 1884: 18 .

Dilasia unicolor Carpintero, 2002: 27 .

Diagnostic characters: Measurements, see Table IV. Male: Characterized by the combination of characters as follows: General coloration testaceous; head, first antennal segment, and pronotum brown; antennal segment II slightly longer than length of head, thickened at apex; antennal segments (I:II:III:IV) 1: 2.2: 1.7: 1.7; head prolonged anteriorly from base of antennae; hemelytra smooth, dorsal pilosity medium-sized, sparse; forefemora thick; foretibiae armed with row of long spines on their inner margins, pads large; short, thick copulatory spines on left margin of sternite VI, ( Fig. 166 ); pygophore ( Fig. 167 ) with aedeagus showing a processus penniformis ( Fig. 168 ); left paramere hammer-like, sinuous and apically subtriangular with angles acute ( Fig. 169 ). Female: Similar to male in measurements and coloration. Antennal segments (I:II:III:IV) 1: 2.2: 1.9: 1.8.

Distribution: Panama, Cuba, Dominica, Trinidad & Tobago, Venezuela. ( Fig. 144 ).

Material examined: CUBA: ♂ at Phila., Pa, 4-VI-1934, Phila. 22701, Banana. MACN ; ♀ intercepted N. York, N. Y., 2-III-1933, Samance , Peltier , Woodbury, Banana flowerstalki. USNM ; DOMINICA: ♀ BWI, 2-VI-1936, Blackwelder C-36. USNM ; PANAMA: ♀ Barro C. Is., CZ, J. Zetek, 5176 V-1944, 45-4516, from fruit of Heliconia mariae (H.). USNM ; ♂ Canal Zone, Ho. 16473, 3-IX-1950, 12915, with Hevea (slide-mounted). MACN ; TRINIDAD: ♂ Brit. W. Indies, F. W. Urich, 1918-123, bred from Cocoa twigs. BMNH .

Discussion: This species is characterized by the homogeneous colour of hemelytra; it belongs to that group of species possessing a hammer-like left paramere, but in D. unicolor , this paramere is sinuous.

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 166–169. D. unicolor. Male. 166, Copulatory spines (Csp); 167, Pygophore showing left paramere (LP); 168, Detail of processus penniformis (Prp) on aedeagus; 169, Detail of left paramere.