Apteropilo Lea

Bartlett, Justin S., 2009, Taxonomic revision of Apteropilo Lea, 1908 (Coleoptera: Cleridae), Zootaxa 2200, pp. 41-53 : 43

Apteropilo Lea

Apteropilo Lea 1908: 162 . Type species: Apteropilo pictipes Lea , by monotypy. Pylusopsis Elston 1929: 352 . syn. n.; Kolibáċ 2003: 68; Solervicens 2005: 53. Type species: Pylusopsis chrysocome Elston , by monotypy.

Description. Head: Frontoclypeal suture faintly visible; eyes broadly emarginate in front, coarsely facetted, moderately bulging laterally, separated by approximately three eye-widths; terminal maxillary and labial palpomeres securiform, their distal and inside edges of sub-equal length; gular sutures convergent; antennae composed of 11 antennomeres, capitate, reaching beyond pronotal base, pedicel never longer than A3, A3–8 filiform (slender or slightly thickened), terminal three antennomeres forming a loose club, A9–10 cupuliform, A11 sub-ovate.

Thorax: Prothorax quadrate to slightly transverse; lateral carina complete, convergent with posterior margin of hypomeron at prothoracic hind angle; lateral tubercles present (distinct or indistinct); pronotum without distinct transverse subapical depression; disc with two pairs of conspicuously large circular setabearing pits positioned paralaterally and discally at the basal second-fifth ( Figs. 1, 2 ) (of similar appearance to, but probably not homologous with, the trichobothria found in Epiphloeinae ) (less conspicuous in A. volans sp. n. and A. clarinotus sp. n.); procoxal cavities externally wide open; prosternal process without distal expansion. Elytra elongate but compact (mean length to width ratio = 1.8:1), broadest near apical third, sides tightly encapsulating pterothorax and abdomen, apical slope relatively steep; elytral epipleurae converging near start of apical curve; basal half of disc impressed with conspicuous, circular, internally binodulate ( Fig. 3 ), punctation arranged in ten rows, integument variously marked with pale pigmentation or callositous deposits; posterior half of disc smooth or with very fine setae-associated punctation. Hind wings welldeveloped (except for the brachypterous A. pictipes ), wedge cell open. Legs moderately long; profemora very slightly swollen, meso- and metafemora slender; tibial spur formula 0–2–1; tarsal pulvillar formula 3–3–2; first and fourth tarsomeres reduced in length, the fourth barely visible; pretarsal claws simple, slightly thickened basally.

Abdomen: Comprising six ventrites; males with phallobasic rod of tegmen slender, sides sub-parallel (Figs. 10, 12, 14); phallus broad with broadly angled apical margin, distal sclerite with rearwards directed acumination (Figs. 11, 13, 15); spicular fork of consistent general shape throughout genus, usually slightly open at base, interspicular plate short, slender (Fig. 16).

Figures

FIGURES 1 – 3. (1) A. humerofuscus sp. n., paired pronotal pits; (2) A. chrysocome comb. n., paired pronotal pits; (3) A. clarinotus sp. n., detail of elytra showing binodulate punctation and white callositous deposit. Scale bars = 0.2 mm.