Macratria, NEWMAN, 1838

Macratria View in CoL pulmonaria sp. nov. ( Figs 4–6 View Figure 4 View Figure 5 View Figure 6 )

urn:lsid:zoobank.org:act:3787329E-8D82-4254-B971-AFA29F2080E9

Type material designated. Holotype ♂, BMNH: ECUADOR Napo prov. Cosanga env. 2.xii.2009 Cosanga-Yanayacu Rd. montane forest 2000 m beating of vegetation L. SEKERKA & K. ŠTAYEROVÁ lgt. [printed, label green] // BMNH {E} 2009- 56 L. Sekerka [printed].

Paratypes 9 specimens. 3♂ BMNH : same labels as holotype; 1♀ BMNH : ECUADOR Napo prov. Cosanga env. 22.xi.2009 Yanayacu Station 0°35’S, 77°53’W, 2100 m beating of forest vegetation L. SEKERKA & K. ŠTAYEROVÁ lgt. [printed, label green] // BMNH GoogleMaps {E} 2009- 56 L. Sekerka [printed]; 1♂ BMNH : ECUADOR Napo prov. Cosanga env. 24.xi.2009 Yanayacu-Stream Trail 0°35’S, 77°53’W, 2100 m beating of forest vegetation L. SEKERKA & K. ŠTAYEROVÁ lgt. [printed, label green] // BMNH GoogleMaps {E} 2009- 56 L. Sekerka [printed]; 2♀ BMNH : ECUADOR Napo prov. Cosanga env. 25.xi.2009 Cosanga-Yanayacu Rd. montane forest 2000 m beating of forest vegetation L. SEKERKA & K. ŠTAYEROVÁ lgt. [printed, label green] // BMNH {E} 2009- 56 L. Sekerka [printed]; 1♀ BMNH : ECUADOR Napo prov. Las Palmas env. ca 6 km N of Cosanga 2.xii.2009 0°33’44’’S, 77°52’33’’, 2020m beating of vegetation L. SEKERKA & K. ŠTAYEROVÁ lgt. [printed, label green] // BMNH {E} 2009- 56 L. Sekerka [printed]; 1♂ BMNH : ECUADOR Napo prov. Cosanga env. 15.xii.2009 Yanayacu-Macucaloma Tr. 0°35’S, 77°53’W, 2100 m beating of forest vegetation L. SEKERKA & K. ŠTAYEROVÁ lgt. [printed, label green] // BMNH GoogleMaps {E} 2009- 56 L. Sekerka [printed].

Derivatio nominis. From Latin ‘pulmonarius’ (lung-like, related to lungs) referring to the presence of the human lung-like structures in the male aedeagus of this species. Feminine.

Measurements, holotype male, total body length 5 mm; head length 0.8 mm, head width across compound eyes 0.8 mm, pronotal length

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Dmitry Telnov

1.1 mm, maximum pronotal width 0.8 mm, elytral length 3.1 mm, combined maximum elytral width 1.2 mm. Male paratypes 4.8–4.9 mm, female paratypes 4.9–5 mm long.

Description. Holotype male ( Figs 4A–B View Figure 4 , 5 View Figure 5 ). Head dorsally dark brown to black-brown, pronotum and basal portions of elytra black-brown, rest of elytra brown. Mouthparts and antennomeres 1–2 yellow, 3–4 yellowish brown, remaining antennomeres brown. Legs yellow, metatibia and base of mesotibia brown. Head nearly triangular, slightly glossy dorsally and ventrally. Frons narrow, about 0.6× as wide as dorsal eye length. Compound eye large, strongly protruding from lateral outline of head, occupying nearly whole lateral side of head posterior to antennal insertion, over 3× as long as short, subparallel tempus. Interfacetal setae moderately long, dense. Head base wide, truncate, not notched. Frontoclypeal suture or impression lacking. Head with dorsal punctures circular, dense, moderately deep, larger on frons and occiput compared to anterior part of head. Intervening spaces smooth, generally narrower than to twice as wide as punctures. Head dorsal setae yellowish, subdecumbent, dense, not fully concealing dorsal surface of head. Tactile setae sparse, erect, long. Antenna moderately long, filiform, slightly widened in distal half, barely exceeds beyond base of pronotum when directed posteriorly. Basal antennomere slightly elongate, about 1.5–1.6× as long as antennomere two. Antennomere three about 1.4× as long as antennomere two, nearly same length as antennomere four. Antennomeres 3–8 elongate, 9–11 thickened. Penultimate antennomere distinctly longer than wide. Terminal antennomere elongate, apically angulate, about 1.6× as long as penultimate antennomere, shorter than combined length of antennomeres 9–10. Terminal maxillary palpomere cultriform. Pronotum slightly glossy dorsally, flattened in dorsal aspect, shortly elliptical, as wide as head across compound eyes. Anterior margin truncate medially. Lateral margins rounded laterally and on anterolateral angles, slightly constricted

188 in posterior two thirds. Dorsal pronotal punctures larger than those on head, deep, circular to slightly elliptical. Intervening spaces smooth, narrower than punctures. Pronotal dorsal setation brownish yellowish, rather long and dense, not fully appressed, not fully concealing dorsal sculpture of pronotum. Basal fovea of pronotum wide, without dense setae. Tactile setae sparse, erect to suberect, much longer than setae. Scutellar shield small, trapezoidal, truncate at posterior margin, punctate, subopaque. Elytron elongate, moderately glossy, slightly constricted posteriorly. Humerus broadly rounded. Postbasal transverse impression not indicated. Punctures on each elytron confused (no striae present), denser and deeper on anterior, sparser and smaller on posterior portion. Intervening spaces smooth to rugose (near elytral base). Elytral setation brownish golden, suberect, long and dense, directed posteriorly, not concealing dorsal sculpture of elytron. Tactile setae sparse, erect, longer than ordinary setae. Lateral humeral stria not shifted dorsad, not visible in dorsal view. Sutural stria complete, moderately broad. Metathoracic wing fully developed. Legs long and stout. Femur clavate. Tibia distinctly widened distally, densely setose, metathoracic tibiae slightly arched at outer margin. Tibial terminal spurs paired, margins serrate. Basal prothoracic tarsomere strongly widened. Basal metathoracic tarsomere about 1.7× as long as combined length of remaining metathoracic tarsomeres. Pretarsal claws not dentate. Male tergite VII notched medially at posterior margin ( Fig. 5A View Figure 5 ). Male sternite VII rather broad, broadly emarginate at posterior margin ( Fig. 5B View Figure 5 ). Male tergite VIII and sternite VIII and IX as in fig. 5C. Aedeagus ( Fig. 5D–E View Figure 5 ) with parameres apically rounded and each with two long setae, penis apically somewhat invert- ed lyriform, a paired “human lung-like structure” on subapical portion ( Fig. 5D–E View Figure 5 ).

Sexual dimorphism. Female ( Figs 4C–D View Figure 4 , 6 View Figure 6 ) frons about 0.6× as wide as dorsal eye length, antennomeres 4–8 less slender than those of male, terminal antennomere 1.5–1.6× as long

Three new species of Macratria Newman, 1838 ( Coleoptera : Anthicidae ) from Ecuador and Peru as penultimate antennomere, basal prothoracic tarsomere comparatively shorter than that of male. Female tergite VII subtruncate apically ( Fig. 6A View Figure 6 ). Sternite VII truncate at posterior margin ( Fig. 6B View Figure 6 ). Female tergite VIII and sternite VIII and IX as in fig. 6C.

Differential diagnosis. Macratria pulmonaria sp. nov. is externally similar to numerous South and Central American congeners with brown elytra and a darker forebody, but is specifically different in the shape of the male aedeagus in

B A combination with the truncate head base, the densely punctured dorsal forebody, and the female with a broadly subtruncate posterior margin of the sternite VII. Proper identification of this species is only possible by using the male genitalia.

Ecology. Collected from vegetation in mid-montane rainforests at 2000–2100 m a.s.l.

Distribution. Ecuador: Napo Province, eastern slopes of the Andes.

C

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Dmitry Telnov