Megaselia miroparaphysis, DISNEY & WINQVIST, 2018

DISNEY, R. Henry L. & WINQVIST, Kaj, 2018, New records including new species of Megaselia Rondani and Triphleba Rondani (Diptera: Phoridae) from Finland, Fragmenta Faunistica 61 (1), pp. 11-33 : 21-23

Megaselia miroparaphysis n. sp.

( Figs 42–51 )

Diagnosis (male). In the keys to British species ( Disney 1989) it runs to couplets 80 or 87, but its hypopygium differs from the species of these couplets and subsequently described species, as well as by other details. The hypopygium of M. nigripalpis (Lundbeck) was not illustrated but (as its name indicates) it has dark palps. In the keys of Schmitz & Beyer (1965) it runs to couplet 15 on page 521 to M. sepulchralis (Lundbeck) , which differs in having dark palps, legs and the anal tube of its different hypopygium. With its costal index of 0.44 the new species also needs to be run through the key of Schmitz & Delage (1974), where it runs to couplets 32 and 36 on page 640. Its hypopygium differs from the species of these couplets.

Male. Frons as Fig. 42 and with dense but very fine microtrichia. Postpedicels, palps and proboscis as Fig. 43 , the postpedicels being without SPS vesicles. Thorax brown, with three notopleural bristles and no cleft in front of these, and mesopleuron with hairs ( Fig. 44 ). Scutellum with an anterior pair of hairs, a posterior pair of bristles and a posterior pair of hairs ( Fig. 45 ). Abdominal tergites brown with hairs mainly at hind margins. Venter gray, and with hairs on segments 3–6. Hypopygium as Figs 46–48 . Middle and hind legs brown but front legs yellowish brown or paler in part. Fore tarsus as Fig. 49 . Dorsal hair palisade of mid tibia extends about 0.6 times its length. Hind femur and tibia as Fig. 50 , the tibia with 14–15 differentiated posterodorsal hairs, without anterodorsals, and spinules of apical combs simple. Wings ( Fig. 51 ) 2.0 mm long. Costal index 0.44. Costal ratios 3.9: 2.4: 1. Costal cilia (of section 3) 0.16 mm long. A small hair at base of vein 3. With 3 axillary bristles, the outer being 0.14 mm long. Sc not reaching R1. Haltere brown.

Material exa mined. Holotype male, Finland, Lkor : Savukoski, Ainijärvi 7522397:3602914, 31 Jul–29 Sep 2015, J. Salmela leg. (Malaise trap) ( UCMZ, 34-189).

Etymology. From miro (strange) with reference to the right paraphysis of the male hypopygium.

Figures

Figs 42–44. Megaselia miroparaphysis n. sp. male: 42 – frons; 43 – postpedicels, palps and proboscis; 44 – left face of thorax.

Figs 45–51. Megaselia miroparaphysis n. sp. male: 45 – scutellum; 46–48 – hypopygium; 49 – front tarsus; 50 – hind femur and tibia; 51 – wing.