Desmopachria annae Miller

Miller, Kelly B., 2005, Four new species of Desmopachria Babington from Peru (Coleoptera: Dytiscidae), Zootaxa 1059, pp. 39-47 : 43-45

Desmopachria annae Miller , new species

( Figs. 3 , 10–13 )

Diagnosis. This species is a member of the D. nitida group since it has the male lateral lobes very robust and with a deep emargination ( Fig. 12 ). The species can be distinguished from others by the characteristically maculate elytra ( Fig.3 ) and the male genitalia. The median lobe is very slender basally, subapically strongly expanded and abruptly hooked dorsad ( Figs.10, 11 ). The apex is comprised of a dorsally hooked, slender, slightly asymmetrical process ( Fig. 10 ).

Description. Measurements. TL = 1.39–1.55 mm; GW = 0.92–0.97 mm; TL/GW = 1.51–1.60. Habitus. Size relatively small; body robust, broadly rounded laterally, somewhat attenuate posteriorly; greatest width medially. Coloration. Head and pronotum yellow, pronotum with narrow brown margin posteromedially; elytron light brown with prominent, irregular yellow maculae anteriorly, near humeral angle, medially, subapically and apically ( Fig.3 ). Antennae, palpi, sterna and legs yellow. Sculpture and structure. Head with very fine, scattered punctures; anterior clypeal margin dorsoventrally compressed and distinctly beaded across entire margin between eyes; antennae short, scape and pedicel enlarged, antennomeres VI–X short and broadly expanded. Pronotum moderately long, broad, very finely and inconspicuously punctate, slightly more coarsely punctate along posterior margins; without basal striae; lateral pronotal margins rounded; lateral bead fine. Elytron very finely and obscurely punctate; epipleuron not punctate. Prosternum very short, with very low posteromedial tubercle. Prosternal process moderately broad, broadly angulate apically. Metasternum, metacoxae and abdomen with few, scattered, fine punctures. Posteromedial surface of abdominal ventrite IV with a distince subapical crease or groove. Legs not modified. Male genitalia ( Figs.10–13 ). Median lobe in dorsal aspect elongate, basally very narrow, apically expanded, abruptly narrowed subapically, apex sharply pointed, slightly asymmetrical and directed anterad ( Fig.10 ); in lateral aspect slender and straight in basal half, abruptly expanded submedially with dorsally­directed lobe, apex strongly hooked dorsad, slender and sharply pointed ( Fig.11 ). Lateral lobe in dorsal aspect robust, apex divided into broad, apically rounded processes, apices bearing distinct setae ( Fig.12 ), in lateral aspect very broad, medially abruptly curved dorsad, apex robust, broad, multifid with two prominent lobes ( Fig.13 ).

Etymology. Patronymic. This species is named D. annae in honor of my daughter, Annie Miller.

Discussion. See under the Discussion for D. balionota .

Material Examined. Holotype: ɗ labeled, “ PERU: Rio Tambopata Explorer’s Inn – jnct. Rio Tower 12º50’12”S 069º17’36”W 10 Dec 2003 K.B. Miller / HOLOTYPE Desmopachria annae K.B. Miller, 2004 [red label with double black line border].” Paratypes: 11, same data as holotype except ‘‘.../ PARATYPE Desmopachria annae K.B. Miller, 2004 [blue label with black line border].”

Figures

FIGURES 1 – 3. Desmopachria species, habiti: 1 — D. pilosa; 2 — D. balionota; 3 — D. annae. Scale bar = 1 mm.

FIGURES 4 – 17. Desmopachria species, male genitalia: 4 – 5 — D. pilosa; 4 — aedeagus, dorsal aspect; 5 — right lateral lobe, right lateral aspect. 6 – 9 — D. balionota; 6 — median lobe, dorsal aspect; 7 — median lobe, right lateral aspect; 8 — right lateral lobe, dorsal aspect; 9 — right lateral lobe, right lateral aspect. 10 – 13 — D. annae; 10 — median lobe, dorsal aspect; 11 — median lobe, right lateral aspect; 12 — right lateral lobe, dorsal aspect; 13 — right lateral lobe, right lateral aspect. 14 – 17 — D. tambopatensis; 14 — median lobe, dorsal aspect; 15 — median lobe, right lateral aspect; 16 — right lateral lobe, dorsal aspect; 17 — right lateral lobe, right lateral aspect.