Pachyanthrax amri, El-Hawagry, 2018

Pachyanthrax amri View in CoL sp. nov.

( Figs 3–7 View FIGURES 1–11 , 14 View FIGURES 12–18 )

This is the smallest Egyptian Pachyanthrax species, its length doesn’t exceed 7 mm, and it is easily distinguished by the contact of fourth posterior cell (cua1) with discal cell (dm) which is exceptionally 3 times longer than basal vein of former.

Etymology. The patronymic name amri is proposed in honor of my colleague and friend Dr Amr Ahmed Abdel-Samea, Entomology Department, Faculty of Science, Cairo University, Egypt.

Description. Male ( Holotype) ( Fig. 14 View FIGURES 12–18 ). Relatively smaller species, body length: about 7 mm, wing length: about 6 mm. Head. Dark brown to black in ground colour; upper frons about 2.5 times as wide as ocellar tubercle; ocellar tubercle frons and face with numerous black hairs; frons, face and occiput with scattered yellowish-white scales become more dense on occiput behind eyes; antennae ( Fig. 3 View FIGURES 1–11 ) brownish-black with long black bristly hairs on scape and pedicel, flagellum conical, as long as scape and pedicel together, second flagellomere about fifth the total length of flagellum, ending with a tiny terminal spine-like style. Thorax. Scutum and scutellum dark brown to black in ground colour, with post alar calli more brownish; collar yellowish-white; scutum and scutellum with sparse yellowish-white scales mixed with some silken-white hairs especially on margins; all thoracic bristles whitish; pleura covered with long yellowish-white hairs; wings hyaline with brown basicostal infuscation, with darker spots on origin of R2+3 vein, r-m crossvein, basal vein of fourth posterior (cua1 cell) and basal vein of discal cell; contact of fourth posterior cell (cua1) with discal cell (dm) exceptionally 3 times longer than basal vein of former; veins brown; comb black; base of costal vein covered with white scales; halters yellowish-white with more whitish knob; all legs dark brown to black with tarsi black, covered with whitish scales; bristles on mid and hind legs black. Abdomen. Ovate, black in ground colour; tergite 1 covered with long white scales, with tufts of long white hairs at sides; tergite 2 with shorter yellowish-white scales on anterior third forming a transverse band alternated with a broader band of brownish-black scales on the middle; tergite 3 with a transverse band of white scales on anterior two thirds; tergite 5 with narrow brownish-black band of scales on the middle; all tergites 2–7 with yellowish-white scales especially on posterior borders mixed with yellowish white hairs in addition to few sparse dark brown or black ones; gonocoxa ( Fig. 7 View FIGURES 1–11 ) with a developed elongated crest bearing long stiff spine-like hairs; epiphallus ( Figs. 4–7 View FIGURES 1–11 ) relatively large, more than three times as long as the aedeagus, with apex broad with two tiny spines dorsally.

Female ( paratype). Differs from the male holotype in that the basicostal infuscation relatively paler; legs yellowish-brown with dark tarsi; upper frons about 2.75 times as wide as ocellar tubercle; all hairs of abdomen yellowish-white without any dark hairs. Female genitalia not dissected.

Material examined. Holotype ♂, Burg Abu-Sowir , 20.4.50 (Shafik & Str.) ; paratype ♀, Fayoum ( Guiza Road), 31.3.47 (Sh. & Roman) ; paratype ♀, Fayoum , 11.3.47 (Sh. & Roman) ; paratype ♂ (end of abdomen broken off), Hammam Rd. ( Mariout ), 9.4.52; all preserved in EFC.