Manota parvistylata, Hippa, Heikki, 2008

Hippa, Heikki, 2008, New species and new records of Manota Williston (Diptera, Mycetophilidae) from the Oriental region, Zootaxa 1723, pp. 1-41 : 27-29

Manota parvistylata sp. n.

( Figs 16 A, B, C)

Male. Colour. Head pale brown, frons and occiput darker brown, mouthparts pale yellowish. Thorax brown, ventral parts of pleura paler brown to yellowish. Legs pale yellowish, femur 3 infuscated on apical third, which is not apparent in all mounts. Wing unicolorous yellowish-brown; haltere yellowish-brown with dark brown knob. Abdomen brown, concolorous with dorsal part of thorax. All the setosity pale, yellowish or brownish, the thicker setae seeming darker than the finer setae and trichia. Head. Antennal flagellomere 4, Fig. 16 A. Palpomere 3 of maxillary palpus with apicomesial extension, with 3–4 apically expanded curved sensilla; palpomere 4 with parasegment. Number of postocular setae 8–13. Thorax. Anepisternum setose, with 20–43 setae, anterior basalare non-setose, preepisternum 2 setose, with 12–34 setae, laterotergite nonsetose, episternum 3 setose, with 5–11 setae. Wing. Length 1.5–2.0 mm. Hypopygium, Figs 16 B and C: Sternite 9 slightly less than one-third of the ventral length of gonocoxa, laterally fused with gonocoxa except posteriorly where it is a short continuation of the convex curvature of the posterior margin, anterior margin only shallowly concave, the setae similar to the ventral setae of gonocoxa. Ventral mesial margin of gonocoxa convex. Apicoventral margin of gonocoxa with a transverse row of some 10 very long setae. Parastylar lobe absent as a definite lobe, probably represented by a few long setae at the middle of the ventral mesial margin of gonocoxa. Paraapodemal lobe absent. Dorsal mesial margin of gonocoxa simple except for a large lobe just on apical half which bears numerous marginal and ventral submarginal setae. Two juxtagonostylar setae present, one a strong curved seta, the other a partly flattened sigmoid megaseta, both arising from a rather low common basal body. Gonostylus small, nearly parallel-sided, ventrally with long setae on the apical half, on dorsal side the mesial marginal area produced lobe-like and with a row of short setae at margin, otherwise with only a few rather weak dorsal setae. Tegmen unusual in shape, narrowly subtriangular with subbasal lateral lobes (shoulders), the basal part with the apodemes unusually narrow. Placement of tegmen as well as the gonocoxal apodemes unusually basal. Hypoproct large but extending posteriorly only near to base of gonostylus, with some 30 setae on each half. Cerci medially separate.

Female unknown.

Discussion. M. parvistylata is similar to M. globigera Hippa , especially in its unusually shaped, basally narrowed, tegmen, the very anterior placement of the tegmen, the gonocoxal apodemes and also the cerci. M. parvistylata can be distinguished from M. globigera e.g. as follows: 1) sternite 9 is short, posteriorly not extending to the middle of the gonocoxa, whereas in M. globigera it is much longer and extends posteriorly to the level of the parastylar lobes, 2) the parastylar lobe is fused with the gonocoxa and is distinguished only as a group of setae, whereas in M. globigera the parastylar lobe is a separate setose sclerite, 3) the posteroventral setae of the gonocoxa are very long, much longer than the more anterior setae, whereas in M. globigera the ventral setosity is all short. In both species the gonostylus is rather similar and may vary in appearances on different mounts. In M. globigera the gonostylus may roll on the mount so that a lobe-like basolateral widening appears. The same is seen in some mounts of M. parvistylata but is much more weakly expressed. In the original description of M. globigera ( Hippa 2006) , the anterior basalare was said to be setose. This is not true as the sclerite is non-setose in the holotype as it is in all the new material (p. 00) and in M. parvistylata . M. parvistylata resembles two other Oriental species, M. secreta Hippa and Papp and M. occulta Hippa and Papp , by lacking the parastylar lobe as a free sclerite, but otherwise the species are not similar. M. parvistylata can be distinguished from both e.g. by the non-setose laterotergite, by having sternite 9 laterally fused with gonocoxa, by having the above-mentioned long setae ventrally on gonocoxa, by having two, not one, juxtagonostylar setae and by having a basally narrowed tegmen.

Types. Holotype. Male, MALAYSIA, Pahang, Cameron Highlands, Bala’s Hotel, 1500 m, light trap 22.XI.1994, B. Gustafsson (in SMNH).

Paratypes. 2 males, MALAYSIA, Pahang, Fraser’s Hill, Malaise in forest 14– 17.3.1997, H. Hippa, M. Jaschhof, B. Viklund (in SMNH). 2 males, MALAYSIA, Pahang, Genting Highlands, Awana, Malaise trap under cable car route 10–22.III. 1997, H. Hippa, M. Jaschhof, B. Viklund (in SMNH). 5 males, MALAYSIA, Pahang, Genting Highlands, GPS 3.24N 101.47E, 3900–4500 ft, Malaise 3–22.III.1997, H. Hippa, M. Jaschhof, B. Viklund (in SMNH).

Figures

FIGURE 16. Manota parvistylata sp. n. (holotype). A. Antennal flagellomere 4, lateral view. B. Hypopygium, dorsal view. C. Hypopygium, ventral view. Scale 0.10 mm.