Hydrometra adnexa Drake, 1956

Martínez, David Camilo, Galindo-Malagón, Ximena Alejandra, Molano, Fredy & Moreira, Felipe Ferraz Figueiredo, 2019, Descriptions, records, and key to the Hydrometra Latreille, 1796 (Hemiptera: Heteroptera: Hydrometridae) from Colombia, Zootaxa 4577 (1), pp. 51-72 : 61-63

Hydrometra adnexa Drake, 1956

( Fig. 6 )

Description. Brachypterous male. BL—8.70; HL—2.70; ANT/POST—1.53/0.85; HW—0.11; ANT I—0.49; ANT II—0.89; ANT III—2.30, ANT IV—1.62; EYE—0.27; PL—1.36; PW—0.44; DIST1—0.50; DIST2—1.05; FORELEG: FEM—2.82; TIB—3.18; TAR I—0.17; TAR II—0.14; TAR III—0.22; MIDLEG: FEM—2.97; TIB— 3.26; TAR I—0.08; TAR II—0.27, TAR III—0.22; HINDLEG: FEM—3.57; TIB—3.12; TAR I—lost; TAR IIlost; TAR III—lost.

Head wider near anterior and posterior ends, dark brown, becoming yellowish brown anteriorly and posteriorly ( Fig. 6a ); ventrally pale yellow on anterior portion and posteriorly to eyes, yellowish brown between eyes; dorsally without denticles; ventrally covered by several black denticles. Clypeus broad, yellowish brown, with anterior margin rounded ( Fig. 6b ). Eyes bright, reddish brown. Dorsal interocular groove darker than remainder of head, very shallow, shorter than eyes; ventral interocular groove concolorous with venter of head, shallow, shorter than eyes. Bucculae yellowish brown, rounded, not covering base of labium; labium brown, very long, reaching postocular region of head. Antennomere I yellow at base, dark brown towards apex; II brown; III–IV dark brown. Antennomere I wider than others, darker portion with many shining setae; II longer than I, with many shining setae; III very thin, curved, long; IV short, with shining setae longer than those of other articles.

Pronotum brownish, with midline pale yellow through entire length, dissipating on anterior part of anterior lobe; a row of deep circular pits adjacent to anterior margin ( Fig. 6c ). Anterior lobe without black denticles; posterior lobe without row of pits on midline, several very shallow pits randomly distributed on sides of midline. Pleural region of thorax brown, without black denticles, with faint longitudinal pale stripe ( Fig. 6d ) extending to last abdominal segment. Pro-, meso- and metasterna pale yellow, with a few black denticles. Propleuron with 4 circular pits. All acetabula brown; proacetabulum with 2 pits anterior to cleft and 2 posterior to it; mesoacetabulum with 2 pits anterior to cleft and 3 posterior to it; metacetabulum with 6 pits. Wings brown, with dark brown veins, reaching base of abdominal mediotergite I. Legs long, thin, with a few scattered short setae. Coxae and trochanters pale yellow; femora yellowish; tibiae and tarsi brown.

Abdominal mediotergites I–VI brown, shining, glabrous, without black denticles; VII–VIII dull, covered by very a few short black setae. Abdominal laterotergites dark brown with pale brown lateral margins, slightly elevated, lacking black denticles, with white spots on anterior edges. Abdominal sterna II–V pale yellowish, with a few black denticles; VI yellowish brown with a few shining long setae; VII brown with several shining long setae ( Fig. 6 e–f). Abdominal segment VIII brown, cylindrical, ventrolaterally compressed in anterior portion; anterior portion with shining long setae very close to segment VII, dorsally ending in a short, sharp, robust, spine-like projection ( Fig. 6f ). Pygophore concolorous with rest of abdomen, with apex rounded, with shining short setae.

Material examined. Colombia, Quindio: 1 brachypterous ♂, Quimbaya, Vereda El Laurel, Reserva La Montaña del Ocaso , 4°34'N 75°51'W, 1032 m. 19.iv.2007, M. Manrique col. (BIOUNAL) ; 1 brachypterous ♂, Quimbaya, Vereda El Laurel, Reserva La Montaña del Ocaso , 4°34'N 75°51'W, 1024 m. 21.iv.2007, F. Alvarado col. ( UPTC) ; 1 brachypterous ♀, Calarcá, Vereda Pradera. 13.vii.2005, J. Cobos col. ( UPTC) ; 1 brachypterous ♀, Tebaida, Vereda Alto Oso. 17.vii.2005, F. Molano col. ( UPTC) .

Distribution. Colombia: Quindío (this work). Panama: Panama ( Drake 1956).

Note. The male of this species was previously unknown and we present here the first records from Colombia ( Fig. 8 ).

Figures

FIGURE 6. Hydrometra adnexa (male). a) Head and part of prothorax, dorsal view. b) Anterior portion of head, dorsal view. c) Pro- and mesothorax, part of head and metathorax, dorsal view. d) Thorax, part of head and abdomen, lateral view. e) Apex of abdomen, ventral view. f) Apex of abdomen, lateral view.

FIGURES 7–8. Distributions of Hydrometra. 7) Three new species and 8) New records of species presented in this paper.