Paradelia intersecta

Michelsen, Verner, 2007, Taxonomic review of Eurasian Paradelia Ringdahl (Diptera: Anthomyiidae) with descriptions of two new species, Zootaxa 1592, pp. 1-44 : 11

The Paradelia intersecta infrasection

The present infrasection includes all species of the Paradelia intersecta subsection less P. palpata and two species ( P. trigonaloides Griffiths , P. ogilviensis Griffiths ) endemic to North America. The monophyly of the Paradelia intersecta infrasection is well supported by the unique structure of the male sternite V in which the setose apex of posterior lobes (e.g., Fig. 35 ) is modified as an inward-pointing, digitiform appendage more or less concealed ventrally by distal part of bare angular lamella (e.g., Figs. 40 , 47 , 70 ). The digitiform appendages bear strong setulae and have a basal articulation point that allows passive movements. The only exception is the following species, P. uleforsi in which the digitiform appendages ( Figs. 39, 40 ) are short, nonarticulated and with fine setulae confined to apical part. The infrasection is also characterized by the pregonite (e.g., Fig. 41 ) with a single, apical setula.

Figures

FIGURES 34 – 38. Paradelia palpata, male. 34, 35. Sternite V, lateral and ventral views. 36. Pre- and postgonites, lateral view. 37, 38. Hypopygium, lateral and caudal views. Same scale for 34, 35 and 36 – 38 respectively. See text for explanation of arrows.

FIGURES 39 – 44. Paradelia uleforsi, male. 39, 40. Sternite V and posterior part of sternite IV, lateral and ventral views. 41. Pre- and postgonites, lateral view. 42. Phallus, lateral view. 43, 44. Hypopygium, caudal and lateral views. Same scale for 39, 40 and 41 – 44 respectively. See text for explanation of arrows.

FIGURES 46 – 49. Paradelia palliceps, male. 46, 47. Sternite V, lateral and ventral views. 48, 49. Hypopygium, lateral and caudal views. Same scale for 46, 47 and 48, 49 respectively. See text for explanation of arrows.

FIGURES 69 – 74. Paradelia intersecta, male. 69, 70. Sternite V, lateral and ventral views. 71, 72. Hypopygium, caudal and lateral views. 73. Pre- and postgonites, lateral view. 74. Phallus, lateral view. Same scale for 69, 70 and 71 – 74 respectively.