Conicera dauci (Meigen)

Liu, Guang-Chun, 2023, Revision of the genus Conicera Meigen (Diptera, Phoridae) from China, Zootaxa 5380 (5), pp. 401-445 : 402-404

1. Conicera dauci (Meigen) ( Figs. 1A–G , 29A )

Phora dauci Meigen, 1830: 223 (♀, Europe).

Conicera dauci, Brues, 1915: 105 .

Conicera atra Meigen, 1830: 226 (♂); Brues, 1915: 106 (syn.).

Phora albipennis Meigen, 1830: 223 (♀); Schmitz, 1926: 24 (syn.).

Phora nickerli Kowarz, 1894: 35 ; Becker, 1901: 81 (syn.).

Description. Male.Body ( Fig. 1A ) length 1.4–1.5mm.Frons ( Fig. 1B ) dark brown, broader than high. Supra-antennal setae and lower fronto-orbital setae absent. Lower interfrontal setae short, about 1/2 length of upper interfrontal setae and the distance between each other shorter than that between upper interfrontal setae. First flagellomere dark brown, 0.28 mm long, with an aspect ratio of 2.1:1; arista 0.35 mm long, 1.28 times as long as first flagellomere, slightly curved backward. Palpus dark brown, with 6 short setae apically.

Thorax dark brown. Legs dark brown, except fore leg brown. Fore tibia with a row of 11 near-dorsal setulae, the uppermost being longer than the rest. Fore tarsus short and thick, tarsomeres 1–4 equaled in width, tarsomere 5 slightly enlarged. Mid femur without sense-organ. Wing ( Fig. 29A ) length 1.20 mm, width 0.56 mm. Costal index 0.41–0.43, costal ratio 2.5:1, costal setulae length 0.07–0.09 mm. Second part of costa with 3 dorsal setulae. Vein M 1 concave, and the base significantly bending towards R 4+5; Rs without basisetula. Thick veins light brown, fine veins almost hyaline. Membrane hyaline and transparent. Halter brown.

Abdominal tergites dark brown. Terminalia ( Fig. 1C ) dark brown. Both left and right surstyli ( Figs. 1D–G ) similar, triangular. The base part of surstylus broad and tapered to a pointed tip. 1–4 inner teeth along the dorsal edge of surstylus.

Female. First flagellomere small and rounded, slightly pointed apically. Frons width less than twice of its height. Lower interfrontal setae not shortened and slightly further away from each other. Palpus two times as long as its width. Legs dark brown, except fore leg brown. Fore tarsus slender. Wing length 1.6 mm, width 0.7 mm. Costal index 0.39, costal ratio 1.9–2:1, costal setulae 0.060 –0.065 mm. Body length 1.6 mm.

Specimens examined. 4♂, Heilongjiang, Mudanfeng , 20-Jul-2019, Jiao Zhang, Zhongyin Wang, Zixuan Liu ; 1♂, Heilongjiang, Qitaihe , 23-Jul-2019, Jiao Zhang, Zhongyin Wang, Zixuan Liu ; 1♂, Jilin, Mt. Changbai , 31-Jul- 2003, Hong Fang ; 1♂, Jilin, Tonghua , 15-Aug-2003, Hong Fang ; 1♂, Jilin, Mt. Changbai ( North Slope , 2000m), 31-Jul-2008, Hong Fang ; 3♂, Jilin, Hunchun , Madida, 3-Aug-2014, Jianfeng Wang ; 1♂, Liaoning, Fushun, Mt. Houshi , 16-Jun-2015, Zhiqiang Cheng ; 14♂, Liaoning, Benxi , Yanghugou, 13-Jul-2008, Guangchun Liu ; 2♂, Liaoning, Benxi , Yanghugou, 31-Aug-2013, Zhuo Zhang ; 1♂, Liaoning, Benxi, Mt. Wunv , 5-Jul-2012, Meng Yang ; 9♂, Liaoning, Benxi, Dadi Forest Park, 10-Jul-2021, Guangchun Liu ; 1♂, Liaoning, Kuandian , Jiapigou, 24-Jun- 2015, Zhiqiang Cheng ; 3♂, Liaoning, Kuandian, Mt. Baishilazi , 25-Jun-2021, Jianfeng Wang ; 2♂, Inner Mongolia, Hanma Reserve, Niuerhu Forest (871 m), 26-Jul-2015, Li Shi ; 6♂, Shaanxi, Huanghualing , 14-Jun-2013, Yunlong Cai ; 1♂, Shaanxi, Foping , 27-Jul-2013, Yunlong Cai ; 1♂, Ningxia, Mt. Liupan (2100 m), 9-Jul-2008, Lixin Su ; 1♂, Ningxia, Mt. Liupan (2100 m), 24-Jun-2008, Lixin Su ; 1♂, Qinghai, Huzhi , 29-Jul-2004, Hong Fang ; 1♂, Xizang, Chawalong , 20-Aug-2020, Guangchun Liu .

Distribution. China (Heilongjiang, Jilin, Liaoning, Inner Mongolia, Shaanxi, Ningxia, Qinghai, Guangdong, Yunnan, Xizang), Russia, Japan, Austria, Belgium, Switzerland, Czech, Slovakia, Germany, France, Great Britain, Hungary, Italy, Ireland, The Netherlands, Portugal, Poland, Sweden, Finland, Canada, United States.

Remarks. This species is similar to C. gracilis Michailovskaya, 2000 , it can be distinguished from the latter by absence of supra-antennal setae, hyaline wing membrane, fewer inner teeth of surstylus and absence of a basidorsal process of left surstylus. The species is widely distributed in Holarctic Region.

Figures

FIGURES 1A–G. C. dauci (Meigen), male. A. body, left view; B. head, anterior view; C. terminalia, dorsal view; D, F. left surstylus; E, G. right surstylus. Scale bars: A = 0.5 mm; B–G= 0.1mm.

FIGURES 29A–J. Male wings.A. C. dauci (Meigen); B. C. gracilis Michailovskaya; C. C. obtusifinis sp. nov.; D. C. petalina sp. nov.; E. C. spinifera Liu; F. C. angusta sp. nov.; G. C. tortuosa sp. nov.; H. C. triangularis sp. nov.; I. C. palmata sp. nov.; J. C. quadrata Mostovski et Disney. Scale bars = 0.2 mm.