Manota parilis, Hippa, Heikki, 2007

Hippa, Heikki, 2007, The genus Manota Williston (Diptera: Mycetophilidae) in Melanesia and Oceania, Zootaxa 1502, pp. 1-44 : 34-36

Manota parilis sp. n.

( Figs 18 A–C)

A small-sized Manota .

Male. Coloration. Almost unicolorous yellowish-brown, frons, vertex and occiput darker brown, mouth parts and legs paler than other parts but the base of femur 3 and less distinctly the base of femur 2 darker brown, the femoral colour pattern very indistinct in some specimens, wing unicolorous, pale yellowishbrown, knob of haltere dark. Head. Antennal flagellomere 4, Fig. 18 C. Palpomere 3 of maxillary palpus with apicomesial extension, with 5–6 apically expanded curved sensilla; palpomere 4 with parasegment. Thorax. Pleural setosity pattern similar to M. bicuspis , Fig. 1 E: anepisternum setose, with 46–80 setae; anterior basalare non-setose; preepisternum 2 setose, with 14–35 setae; laterotergite setose, with ca. 18–27 setae; episternum 3 setose, with 10–16 setae. Wing. Length 1.5–1.8 mm. Hypopygium ( Figs 18 A, B). Sternite 9 extending posteriorly to halfway between the base of gonocoxa and the base of gonostylus, laterally sharply delimited, posterior margin broadly convex, anterior margin deeply notched, the setae similar to ventral setae of gonocoxa, posterolaterally stronger than on other parts, similar to the stronger ventromesial setae of gonocoxa. Parastylar lobe well exposed in ventral view, bipartite with a short basal part and a long apical part directed obliquely anteromesially, the latter with one subbasal seta posteriorly and three or four more apical setae on dorsal side. The shape of the apical part of the parastylar lobe rather variable between individuals, depending on the angle of view, and it can be twice as broad as in Fig. 18 A. Paraapodemal lobe distinct and exposed in ventral view. The dorsal mesial margin of gonocoxa with the slight indication of a very broad setose lobe at the middle and a large narrower lobe apically with a few setae on the mesial and the apical margins and with two or three long setae arising from the ventral surface. Two juxtagonostylar setae present, a curved megaseta and a strong seta, both arising at the apex of a common basal body which is about half as long as the megaseta. Gonostylus laterally flattened with the dorsal and ventral surfaces narrow, in lateral view the gonostylus higher than long with a narrow basal part, the setae on dorsal, lateral and ventral surfaces similar to ventral hairs of gonocoxa, the apical margin of gonostylus with a strong mesially directed megaseta on its dorsal part and a few weaker similarly-directed setae in a more ventral position, the mesial face of gonostylus non-setose but with long microtrichia. Tegmen elongate-triangular, with weakly indicated lateral shoulders. Hypoproct posteriorly extending to the level of the base of gonostylus, with ca. 30 long scattered ventral setae on each half. Cerci united.

Female and preimaginal stages unknown.

Discussion. M. parilis is similar to M. hamulata and M. bicuspis . It is distinguished from both e.g. by the following characters: 1) The setae on the stergite 9 are not uniform but there is an area of distinctly stronger setae posterolaterally. 2) On the parastylar lobe there seems to be no apical seta, but the most apical of the setae is well removed from the apex. 3) The apical lobe on the dorsal mesial margin of gonocoxa is narrower and its lateral margin forms an angle with the apical margin of gonocoxa. 4) The basal body of the juxtagonostylar setae is only half the length of the megaseta instead of being equally long and the two setae, the megaseta and the usual seta, are at the apex of the basal body, whereas in the two other species only the megaseta is apical and the seta is placed more basally at the side of the basal body. 5) There is one megaseta at the apical margin of the gonostylus instead of two megasetae or two or three thick setae diverging from the other apical setae. 6) The hypoproct has ca. 30 ventral setae instead of ca. 20. The setae are also longer than in M. hamulata and M. bicuspis . 7) The cerci are medially united, separated only by a notch apically instead of being separate, with a long free mesial margin each. M. parilis also differs from M. hamulata by having a two-lobed, not a three-lobed parastylar lobe. M. parilis is also similar to M. evexa . For the distinguishing characters, see under M. evexa .

Types. Holotype. Male, Papua New Guinea, Morobe province, Wau, Wau Ecology Institute, 1200 m, forest at border to coffee plantation, Malaise trap 11–22.XI.1999, H. Hippa, R. Norberg & D. Borisch (in NRM).

Paratypes. 3 males with same data as holotype except 8–11. XI. 2 males with same data except Malaise trap under bamboo, 10.–14. XI. 1 male with same data as holotype except Wau, Mt. Kaindi, ca. 1400 m, forested ravine, Malaise trap, 27. X.–08.XI. (in NRM).

Other material. 2 males, Papua New Guinea, Madang province, Hapurpi village, near Halopa mission, 700 m a. s. l., S 5o 05’, E 145o 41’, primary rain forest, Malaise, January and February 2001, Amari & Novotny leg. (in NRM).

Figures

FIGURE 1. Pleura, lateral view. A. Manota serawei sp. n. (holotype). B. M. explicans sp. n. (paratype). C. M. perissochaeta sp. n. (paratype). D. M. spathula sp. n. (holotype). E. M. bicuspis sp. n. (paratype). Scale 0.10 mm.

FIGURE 18. Manota parilis sp. n. A. Hypopygium, ventral view (paratype). B. Hypopygium, dorsal view (holotype). C. Antennal flagellomere 4, lateral view (paratype). Scale for A and B 0.10 mm, for C 0.05 mm.