Macropeza Meigen

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, Zootaxa 3879 (1), pp. 1-327 : 82-84

publication ID

https://doi.org/ 10.11646/zootaxa.3879.1.1

publication LSID

lsid:zoobank.org:pub:6423894B-97D9-4286-ABB9-D4AF072B57FD

DOI

https://doi.org/10.5281/zenodo.5593029

persistent identifier

https://treatment.plazi.org/id/027587C9-BD7F-3025-FD5C-1D324FBAE01C

treatment provided by

Felipe

scientific name

Macropeza Meigen
status

 

Macropeza Meigen View in CoL View at ENA

( Figs. 12C View FIGURE 12 , 21D View FIGURE 21 , 26H View FIGURE 26 , 30M View FIGURE 30 , 38D–E View FIGURE 38 , 45J View FIGURE 45 , 51D View FIGURE 51 , 65B–C View FIGURE 65 , 76A–B View FIGURE 76 )

DIAGNOSIS: Only pupa of Ceratopogonidae with the metathorax with only one campaniform sensillum (M-3-T) situated at least ⅓ the length of the metathorax from its anterior margin ( Fig. 51D View FIGURE 51 ), abdominal segment 4 with L-1- IV a short seta ( Fig. 65B View FIGURE 65 ) and L-3-IV situtated well anterior of L-2-IV; also unique with D-2-I and D-3-I well separated ( Fig. 51D View FIGURE 51 ) and L-1-VIII present (for all species other than M. natalensis ); also unique with the metathorax with only one campaniform sensillum (M-3-T) situated at least ⅓ the length of the metathorax from its anterior margin ( Fig. 51D View FIGURE 51 ) and D-4-IV situated between D-8-IV and D-9-IV (except for M. natalensis but in that species D-4-V and D-4-VI are between D-8 and D-9 of their respective segments).

DESCRIPTION: Habitus as in Fig. 12C View FIGURE 12 . Total length = 2.59–4.88 mm. Without larval exuviae retained on abdomen. Exuviae with flagellum appressed against lateral margin of midleg, wing (as in Figs. 16B View FIGURE 16 , 33B View FIGURE 33 ). Ecdysial tear extending into eye sheath (as in Figs. 17A View FIGURE 17 , 79I View FIGURE 79 ). Head: Dorsal apotome ( Fig. 21D View FIGURE 21 ), without ventral line of weakness, without dorsomedial tubercle, without central dome; dorsolateral cephalic sclerite (as in Fig. 13H View FIGURE 13 ) fused to scutum, each side separated medially by dorsal apotome in whole pupa; mouthparts ( Fig. 26H View FIGURE 26 ) with mandible well-developed, lacinia absent; palpus extending posterior to posterolateral margin of labium; labium separated medially by labrum, hypopharynx; apex of antenna ( Figs. 38D–E View FIGURE 38 ) anterior to posterior to, posterior extent of midlength portion of midleg (portion lateral to mesosternum), narrowed posteriorly; sensilla: dorsal apotomals ( Fig. 21D View FIGURE 21 )—1 elongate seta, 1 campaniform sensillum; dorsolateral cephalic sclerite sensilla—1 seta, 1 campaniform sensillum; clypeal-labrals ( Fig. 26H View FIGURE 26 )—2 slender or thick setae; oculars ( Fig. 26H View FIGURE 26 )—2 setae, 1 campaniform sensillum. Thorax: Prothoracic extension ( Fig. 26H View FIGURE 26 ) wide, well-developed, extending from palpus to antenna; mesonotum without or with well-developed moderately sized tubercles, not extending posteromedially, not dividing metathorax medially ( Fig. 51D View FIGURE 51 ); respiratory organ ( Fig. 45J View FIGURE 45 ) length/width = 2.15–4.31, very short, squat to elongate, somewhat flattened apically, with pores closely abutting at apex of respiratory organ, arranged in single row, outer surface with some wrinkles, with short, wide to moderately elongate pedicel, base with short to 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 ( Figs. 38D–E View FIGURE 38 ) without apical tubercle or angle, separated medially by fore-, midlegs; halter apex and hind leg (as in Fig. 33A View FIGURE 33 ) broadly abutting; halter apex abutting anterolateral knob-like extension of tergite 2; legs ( Figs. 38D–E View FIGURE 38 ) with lateral margin of foreleg near midlength of wing evenly curved; hind leg visible at lateral margin of wing (as in Fig. 33E View FIGURE 33 ); with apex of foreleg moderately anterior to apex of midleg; apex of hind leg abutting apex of midleg laterally, small ventral lobe; sensilla: anteromedials—1 short, 1 elongate seta, 0–1 campaniform sensillum (as in Fig. 31N View FIGURE 31 ); anterolaterals—1 moderately long seta; dorsal setae ( Fig. 30M View FIGURE 30 )—D-1-T, D-2-T, D-5-T peg-like setae or setae, D-4- T elongate seta or peg-like seta, D-3-T campaniform sensillum; D-1-T, D-2-T on single tubercle, D-3-T lateral to D-4-T; supraalar 2—campaniform sensillum; metathoracics ( Fig. 51D View FIGURE 51 )—1 campaniform sensillum; M-3-T distant from margin of metathorax (at least 1/3 length of metathorax). Abdomen: with tergite 1 with 3 medial spots (in female only), tergites 2–7 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, peg-like or thin to thick setae, with rounded to pointed or bifid, short to moderately elongate tubercles, tergites or sternites entire, not membranous or with sternites 5–7 each with membranous disc; segment 9 ( Figs. 76A–B View FIGURE 76 ) not strongly modified, terminal processes closely approximated basally, each projecting posterolaterally to nearly laterally, tapering to pointed apex; sensilla: tergite 1 ( Fig. 51D View FIGURE 51 ) with 8 setae, 2 campaniform sensilla, including 4 lateral sensilla, D-2-I, D-3-I well separated, D-7-I situated anterolaterally near L-1-I; segment 4 ( Figs. 65 View FIGURE 65 B-C)—D-2-IV, D-3-IV elongate setae; D-2-IV on elongate or bifid tubercle, D-3-IV on bump or bifid tubercle; D-5-IV peg-like seta, D-8-IV, D-9- IV short to moderately elongate setae, D-7-IV present or absent; D-5-IV on single bifid 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 or D-5-IV, D-8-IV, D-4-IV, D-9-IV; D-7-IV, if present, near D-3-IV; L-1- IV short to moderately elongate seta on short tubercle, near L-3-IV; L-2-IV, L-4-IV short setae, L-3-IV moderately elongate seta, L-2-IV, on pointed or bifid tubercles, V-5-IV, V-6-IV, V-7-IV short to moderately elongate setae, on short bilobed tubercles, all closely approximated or with only V-5-IV, V-6-IV close; segment 8 without D-3-VIII, with L-1-VIII; segment 9 ( Figs. 76 View FIGURE 76 A-B)—with D-5-IX, D-6-IX campaniform sensilla.

DISTRIBUTION AND HABITAT: The genus Macropeza is known from 22 species in the Nearctic, Palaearctic, Oriental, and Afrotropical Regions ( Borkent 2014 ). Macropeza geari is transferred to Pellucidomyia as a new combination above. Immatures have been collected from mud and among plants at stream and river margins, reservoirs, and from aquatic plants ( Pistia stratiotes ).

TAXONOMIC DISCUSSION: The pupae of four named species of Macropeza have been described ( Tables 2–3 View TABLE 2 View TABLE 3 ).

All species of Macropeza , other than M. natalensis , are nearly unique in having L-1-VIII on abdominal segment 8 (see character 71). In addition, nearly all species have another synapomorphy, with D-4-IV between D- 8-IV and D-9-IV. In M. natalensis the sensilla is medial to D-8-IV and D-9-IV but is between the two comparable sensilla on abdominal segments 5 and 6. These observations may suggest that M. natalensis is the sister group to the remaining Macropeza examined or alternately, that the single specimen available had aberrantly distributed sensilla on segment 4.

MATERIAL EXAMINED: M. albitarsis : 2 pupal exuviae, Piława river, Szwecja nr Wałcz, Poland, 5-VII- 2007 ( IZUG). M. bayeri : 1 pupal exuviae (of paratype), M’posa River, Empangeni, Zululand, South Africa, 14-I- 1937 (SAIM). M. natalensis : 1 pupal exuviae, Manypuza River, INYONI, Zululand, South Africa, 19-VIII-1936 (SAIM). M. sp.: 1 pupal exuviae, Nam Houng River Margin, Moung Sayaboury, Sayaboury Province, Laos, 17- XII-1967 (BPBM); 2 pupal exuviae (different species), as previous locality, 17-20-XII-1967 (BPBM); 1 pupal exuviae, as previous locality, 6-9-I-1968 (BPBM).

IZUG

Istituto di Zoologia dell'Universita

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Ceratopogonidae

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