Lanatomyia Debenham
Creators: name: Borkent, Art
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Ceratopogonidae
Lanatomyia

description: Lanatomyia Debenham
(Figs. 21K, 27F, 30S, 39E, 45R–S, 52D, 67C, 76J)
DIAGNOSIS: Only pupa of Ceratopogonidae with the prothoracic extension wide medially and not extending to the antenna (Fig. 27F), the dorsal apotome with only a ventral tubercle (Fig. 21K), abdominal segment 4 with the L-1-IV anterior to remaining lateral sensilla but with all these situated at the segment's midlength (Fig. 67C) and abdominal segment 8 with the two ventral sensilla (V-5-VIII and V-6-VIII) on separate tubercles.
DESCRIPTION: Total length = 4.78–5.19 mm. Without larval exuviae retained on abdomen. Exuviae with flagellum appressed against lateral margin of midleg, wing (as in Figs. 16B, 33B). Ecdysial tear around base of antenna, along lateral margin of face to palpus (as in Figs. 17C, 79H). Head: Dorsal apotome (Fig. 21K), with ventral line of weakness, without dorsomedial tubercle, without central dome; dorsolateral cephalic sclerite (as in Fig. 13H) fused to scutum, each side separated medially by dorsal apotome in whole pupa; mouthparts (Fig. 27F) with mandible well-developed, lacinia absent; palpus extending posterior to posterolateral margin of labium; labium separated medially by labrum, hypopharynx; apex of antenna (Fig. 39E) anterior to just anterior to posterior extent of midlength portion of midleg (portion lateral to mesosternum), narrowed posteriorly; sensilla: dorsal apotomals (Fig. 21K)—1 elongate seta, 1 campaniform sensillum; dorsolateral cephalic sclerite sensilla—1 seta; clypeal-labrals (Fig. 27F)—2 slender setae; oculars (Fig. 27F)—2 setae, 1 campaniform sensillum. Thorax: Prothoracic extension (Fig. 27F) wide, well-developed but narrow dorsolaterally, not extending to antenna; mesonotum with short tubercles, not extending posteromedially, not dividing metathorax medially (Fig. 52D); respiratory organ (Figs. 45R–S) length/width = 2.95–3.06, moderately elongate, somewhat flattened apically, with pores closely abutting at apex of respiratory organ, arranged in single curved row, outer surface with some wrinkles, without pedicel, base with elongate posteromedial apodeme, membranous base of respiratory organ short, tracheal tube straight to slightly curved along length, with spirals restricted to base, wrinkles to half length; wing (Fig. 39E) without apical tubercle or angle, separated medially by fore-, midlegs; halter apex and hind leg (as in Fig. 33A) broadly abutting; halter apex abutting anterolateral knob-like extension of tergite 2; legs (Fig. 39E) with lateral margin of foreleg near midlength of wing evenly curved; hind leg visible at lateral margin of wing (as in Fig. 33I); with apex of foreleg moderately anterior to apex of midleg; apex of hind leg abutting apex of midleg laterally; sensilla: anteromedials—2 elongate setae (as in Figs. 31L–M); anterolaterals—1 moderately long seta; dorsal setae (Fig. 30S)—D-1-T, D-2-T, D-4-T, D-5-T setae, D-3-T campaniform sensillum; D-1-T, D-2-T on single tubercle, D- 3-T anterolateral to D-4-T; supraalar 2—campaniform sensillum; metathoracics (Fig. 52D)—1 campaniform sensillum; M-3-T distant from margin of metathorax (at least 1/3 length of metathorax). Abdomen: with tergites 1- 7 with medial area with stripe, 2 anterolateral spots, sternites 3-7 with medial stripe, anterolateral spot, segment 2 as wide or slightly wider than segment 3, segments with undivided, thin to thick setae, with rounded to pointed, short tubercles, tergites or sternites entire, each without membranous disc; segment 9 (Fig. 76J) not strongly modified, terminal processes closely approximated basally, each projecting posterodorsolaterally, tapering to pointed apex; sensilla: tergite 1 (Fig. 52D) with 6 setae, 2 campaniform sensilla, including 2 lateral sensilla, D-2-I, D-3-I closely approximated, D-7-I situated anteriorly near D-3-I; segment 4 (Fig. 67C)—D-2-IV, D-3-IV short to moderately elongate setae on short tubercles; D-5-IV, D-8-IV, D-9-IV short to moderately elongate setae; D-5-IV on single tubercle, D-8-IV, D-9-IV on separate but closely approximated tubercles, posterior dorsal sensilla in transverse row, arranged medially to laterally: D-5-IV, D-4-IV, D-8-IV, D-9-IV; D-7-IV near D-3-IV; L-1-IV elongate seta on short tubercle, just anterior of L-2-IV, L-3-IV, L-4-IV on anterior half of segment; L-2-IV, L-3-IV, L-4-IV moderately elongate setae on pointed tubercles, V-5-IV, V-7-IV short setae, V-6-IV elongate seta, on short rounded tubercles, all closely approximated; segment 8 without D-3-VIII, without L-1-VIII; segment 9 (Fig. 76J)—with D-5-IX, D-6-IX campaniform sensilla.
DISTRIBUTION AND HABITAT: The genus Lanatomyia is known from three species in the Oriental and Australasian Regions (Borkent 2014). Immatures have been collected from sandy pool edges. Harris (1981) described pupal behaviour, with pupae keeping their abdomens in substrate until just prior to adult emergence.
TAXONOMIC DISCUSSION: Two species of Lanatomyia are known as pupae (Tables 2–3). Debenham (1974) described the lateral sensilla of abdominal segment 6 of L. miles and these are considerably more scattered in an anterior to posterior arrangement than that reported here for segment 4 (Fig. 67C) (based on original material). Elson-Harris (1987) described the abdominal segment 4 sensilla of L. miles and appears to show the lateral and posterior sensilla as relatively more posterior on the segment than shown here (Fig. 67C). It appears that she did not draw part of the posterior portion of the segment (as she did do for L. electra). Elson-Harris (1987) keyed the two Australian species.
MATERIAL EXAMINED: L. electra: 1 pupal exuviae, Yellow Water, Australia, 14-I-1956 (ANIC). L. miles: 1 pupal exuviae, Mountain Lake, Thurmere Lakes, New South Wales, Australia, 2-II-1966 (ANIC); 1 pupal exuviae, Nattai River, Mittagong, New South Wales, Australia, 5-II-1965 (ANIC).
description: Published as part of Borkent, Art, 2014, The Pupae of the Biting Midges of the World (Diptera: Ceratopogonidae), With a Generic Key and Analysis of the Phylogenetic Relationships Between Genera, pp. 1-327 in Zootaxa 3879 (1) on pages 91-92, DOI: 10.11646/zootaxa.3879.1.1, http://zenodo.org/record/4949051