Reevaluation of species richness in Winnertzia (Diptera, Cecidomyiidae, Winnertziinae), with descriptions of 37 new species from Sweden, Peru and Australia Author Jaschhof, Mathias 0000-0003-3447-1620 Author Jaschhof, Catrin 0000-0002-1030-0934 mjaschhof@yahoo.de text Zootaxa 2020 2020-08-11 4829 1 1 72 journal article 8695 10.11646/zootaxa.4829.1.1 04b19d7f-1d74-41ec-b657-9b57f47826f9 1175-5326 4402757 7B34E058-03B4-44D0-AC4E-065B010172E1 Winnertzia pustulatula sp. nov. Figs 128–131 Diagnosis. Males of this medium-sized ( 1.7–1.9 mm ), brown Winnertzia are reminiscent of small W. pustulata (1.7– 2.3 mm). Differences between these two species are as follows. In W. pustulatula , the flagellomeres have shorter necks, the neck of the fourth flagellomere being 0.6 times as long as the node ( Figs 130–131 ) ( pustulata : 0.8–0.9); the fore tibia is 1.2–1.3 times as long as the second tarsomere ( pustulata : equally long); the gonostylar claw is broader and inserted on the broadly rounded gonostylar apex ( Fig. 129 , ↓ 1 ) ( pustulata : claw inserted on a short, flattened process); the gonocoxal synsclerite is more strongly narrowed towards the roundish base ( Fig. 128 , ↓ 2 ) ( pustulata : basal gonocoxal edge slightly convex to truncate); and the medial bridges of the gonocoxae are less strongly bulging towards the aedeagus ( Fig. 128 , ↓ 3 ). Females and preimaginal stages of W. pustulatula are unknown. FIGURES 128–134. Male morphology of Winnertzia pustulatula (128–131) and Winnertzia ruliki (132–134) , holotypes. 128: Genitalia, ventral. 129: Gonostylus, ventral. 130: Fourth flagellomere, lateral. 131: Ditto, medial. 132: Genitalia, ventral. 133: Fourth flagellomere, lateral. 134: Ditto, medial. Scales for 128 and 130–134, 0.05 mm; for 129, 0.025 mm. Arrows refer to characters described in the diagnoses. Discussion. Our material contains another unnamed Winnertzia from Sweden close to both W. pustulatula and W. pustulata , which is distinguished as follows. The single male (specimen CEC 3364 in NHRS) is very small ( 1.3 mm ); the number of flagellomeres is 11; the fore tibia is much longer than the second tarsomere (tb/T 2 = 1.4–1.7); the empodia are vestigial; the gonostylus is less strongly swollen apically; the gonostylar claw is broader; and the processes at the apex of the aedeagal apodeme are appreciably smaller. Etymology. The name, the diminutive of pustulata , refers to the general similarity of this species to the slightly larger W. pustulata . Type material. Holotype . Male , Sweden , Öland , Borgholm , Lindreservat Nature Reserve , mixed broadleaf forest, 7 May–10 June 2015 , Malaise trap , M. & C. Jaschhof (spn CEC 3072 in NHRS ) . Paratypes . 5 males , same data as the holotype (spns CEC3073 – CEC 3074 in NHRS , CEC3075 – CEC 3077 in SDEI ) . Other material studied. Sweden : 1 male , Öland , Borgholm , Horns kungsgård NR, mixed forest of softwoods at lakeside, 6 May–11 June 2015 , MT , MCJ (spn CEC 3079 in SDEI ) ; 2 males , Öland , Mörbylånga , Ottenby , Södra lunden, mixed broadleaf forest, 27 May–7 June 2004 , MT , SMTP (trap 21, collection event 991) (spns CEC3078 and CEC 3083 in NHRS ) ; 1 male , Småland , Nybro , Alsterbro , Alsterån , mixed forest, 1–10 June 2006 , MT , SMTP (trap 1008, collection event 1736) (spn GULI000020988 in NHRS ) ; 1 male , Uppland , Håbo , Biskops-Arnö , elm grove, 20 May–20 June 2005 , MT , SMTP (trap 8, collection event 1601) (spn CEC 3080 in NHRS ) ; 1 male , Dalarna , Orsa , Oljonsbyn , Stenbergsvägen , backyard with rich flora including woody plants, 17 September 2016 – 18 June 2017 , MT , MCJ & B. Oldhammer & K. Hedmark (spn CEC 3081 in SDEI ) . Distribution and phenology. Adults of W. pustulatula were collected in May–June in different woodlands in the southern half of Sweden (Småland to Dalarna ).