Papuanatula (Papuanatula) lenos Lugo-Ortiz & McCafferty, 1999

Papuanatula (Papuanatula) lenos Lugo-Ortiz & McCafferty, 1999 View in CoL

Figs 14 View Figure 14 , 15 View Figure 15 , 16 View Figure 16

Papuanatula lenos View in CoL . Lugo-Ortiz and McCafferty 1999: 65–66, figs 19–24.

Material examined.

Type locality (‘ additional material’ in original description). Papua New Guinea • 3 larvae; Morobe Prov., Wau, Hospital Cr. ; 1150 m; 20. x. 1964; leg. WL and WG Peters; 1 in alcohol; GBIFCH 00976076 ; 2 on slides; GBIFCH 00592580 , GBIFCH 00592533 ; MZL .

Diagnosis.

Larva. The following combination of characters distinguishes P. lenos from other species of Papuanatula s. str.: body dorsally without row of long, fine, simple setae along midline; body dorsally without protuberances; thorax ventrally without protuberances; thorax dorsally without distinct markings; femur anteriorly with hypodermal, large, oblong to drop-shaped, dark brown to purple black marking in basal 1 / 2; paracercus with nine segments (immature larvae 11); paraproct without posterior prolongation;

Description.

Larva (Figs 14 View Figure 14 – 16 View Figure 16 ; Lugo-Ortiz and McCafferty 1999: 65–66, figs 19–24). Body length 3.3–4.4 mm, cerci length unknown.

Cuticular coloration (Fig. 14 a View Figure 14 ). Head, thorax and abdomen dorsally yellow-brown to brown with pattern as in Fig. 14 a View Figure 14 , slightly variable; abdominal segments III – VIII with oblique, dark brown lateral markings, partly forming a trough-shaped pattern (segments III, VII, and VIII), segment IV with dark brown crown-like pattern. Legs yellow-brown to brown; Caudalii yellow-brown.

Hypodermal coloration. Abdominal segments I – IX dorsally with transverse stripe on posterior margins (Fig. 14 a View Figure 14 ). Femur anteriorly with large oblong to drop-shaped, dark brown to purple black marking in basal 1 / 2; posteriorly with long, broad, dark brown to purple black dashes.

Head. Antenna. Length 1.5 × head length. Developing turbinate eyes in last instar male larva unknown. Labrum (Fig. 15 a View Figure 15 ). Length 0.5 × maximum width, laterally convex. Dorsal, sub-marginal arc with 12–15 feathered setae. Right mandible (Fig. 15 c, d View Figure 15 ). Margin between prostheca and mola smooth. Otherwise, as typical for subgenus. Left mandible (Fig. 15 e, f View Figure 15 ). Margin between prostheca and mola smooth, with one spine close to subtriangular process. Otherwise, as typical for subgenus. Hypopharynx (Fig. 15 b View Figure 15 ). As typical for genus. Maxilla (Fig. 15 h, i View Figure 15 ). Maxillary palp subequal in length to galea-lacinia; palp segment II subequal in length to segment I. Otherwise, as typical for genus. Labium (Fig. 15 g View Figure 15 ). As typical for genus. Paraglossa dorsally with one spine-like seta near inner, distolateral margin. Labial palp with segment I subequal in length to segments II and III combined. Segment II without distomedial protuberance, dorsally with row of five spine-like setae near outer, distolateral margin. Segment III bulbous, pointed, 0.8 × length of segment II; inner dorsal margin with few feathered setae.

Thorax. Sterna without protuberances. Terga without protuberances. Legs (Fig. 16 a, b View Figure 16 ). Ratio of leg segments: fore leg 1.0: 1.0: 0.2: 0.1, middle leg 0.9: 1.0: 0.2: 0.1 and hind leg 1.1: 1.0: 0.3: 0.1. Femur. Length ~ 3 × maximum width. Claw with one row of six or seven denticles, one posterior seta.

Abdomen. Terga (Fig. 16 c View Figure 16 ). Abdominal terga without protuberances. Posterior margin of terga: I smooth, without denticles; II – IX with triangular, pointed denticles. Tergalii (Fig. 16 e – f View Figure 16 ) ovoid, tracheation rather poorly developed; margins smooth, with short, fine, simple setae. Paraproct. Posterior margin without prolongation; smooth, without denticles. Caudalii (Fig. 16 d View Figure 16 ). Paracercus with nine segments, immature larvae up to 11 segments.

Pose of subimaginal gonostyli under larval cuticle. Unknown.

Subimago. Unknown.

Imago. Unknown.

Egg. Unknown.

Distribution.

New Guinea (Fig. 146 View Figure 146 ).