A revision of the Afrotropical species of Pachylophus Loew (Diptera: Chloropidae) and some related Ovoviviparous genera Deeming, John C. Zootaxa 2018 2018-09-17 4482 1 1 51 8D4YM Deeming, 2018 Deeming 2018 [151,392,1830,1856] Insecta Chloropidae Pachylophus GBIF Animalia Diptera 11 12 Arthropoda species ismayi sp. nov.   Description. Male.Head: deeper than long; frontal triangle with base slightly longer than sides, reaching four fifths of the way to anterior margin of frons, which bears a line of silvery dust along eye margin and scarcely projects beyond the eyes; face, parafacial and gena silvery grey dusted, the latter without any shiny area and in depth equal to one third of the width of the face; inner vertical seta much stronger and one and a half times as long as the outer; apex of pedicel and dorsum of postpedicel infuscate, postpedicel short, rounded, its dorsoapical angle a right angle. Thorax short with scutum convex, the scutellum apically rounded with its dorsal surface flat and slightly rugose; scutum and scutellum subshining through weak grey dust, the dorsocentral lines and a broad band extending across lower notopleuron to wing base more heavily silvery grey dusted; postpronotal lobe shining on all but its upper margin; notopleural seta long and strong, almost as long as the pair of widely-separated, cruciate scutellar marginals, the postalar somewhat shorter and the prescutellar dorsocentral very short and weak; pleura shining from anterior margin to the posterior one third of anepimeron, apart from some fine dusting amid the long pale hairs on ventral surface of katepisternum. Legs faintly grey dusted with hind tibial organ distinct, occupying almost two fifths of its length and with the compact pilosity it bears blackish grey. Wing brownish hyaline with veins brown, but costa yellowish from base to humeral crossvein. Abdomen with tergites yellowish brown and subshining through brown dust. Length about 1.9mm, of wing 2.2mm. Female resembling male in all characters but those of the postabdomen.  Adissected female from Morogorowas found to contain a single larva which is as long as its abdomen.     Material: Holotype, ♂, TANZANIA: Morogoro,  17.viii.1994, J.W.Ismay( NMWC).  Paratypes, 201♂ 141♀, same data as holotype ( NMWC, NHMUK& OUM);  1♂, KENYA: S. Embu, Wangeru, rice area,  16.iv.1983, K.  A. Spencer( NMWC);  1♀, Masai Mara, Keekorok Lodge,  29–30.viii.1983,  A. Freidberg( TAU);  6♂ 1♀, Nature ReserveNNW of Isiolo,  17.iii.1970, (X332);  1♂ 3♀, Tsavo National Park, Galana River, 3°02'S 38°43'E,  23.iii.1971, (X357);  157♂ 185♀, Tsavo National Park, Voi River,  22.ii.1971, (X356);  3♀, same data (X355);  55♂ 82♀same data but  20.ii.1971, (X353); all M. v. Tschirnhaus( ZSM);  1♀, ZIMBABWE: 10kmSE of Harare,  19.ii.1997, J.W. Ismay( NMWC).  Note:The peculiar group of hair ridges situated in a depression on the upper hind corner of the anepisternum has no parallel development known to me. Although equally developed in both sexes, it is suspected by Dr. Ismay to be of stridulatory function. It would appear significant that coupled to this character is a peculiarity in the lie of the close-set microchaetae clothing the notopleuron and lateral scutal declivity from the wing base forwards, these considerably longer than those on the disc of the scutum and radiating out from the hind corner of the anepisternum (Fig. 14). 1915523578 [199,1164,259,285] 1994-08-17 NMWC J. W. Ismay Tanzania Material 13 14 1 1 Morogoro holotype 1915523610 1994-08-17 NMWC, NHMUK, OUM J. W. Ismay Tanzania Material 13 14 342 141 201 Morogoro paratype 1915523585 [753,1405,295,320] 1983-04-16 Kenya Wangeru 13 14 1 1 Embu paratype 1915523553 NMWC Spencer Kenya A 13 14 1 A paratype 1915523640 [384,996,332,357] 1983-08-29 1983-08-30 1983-08-29 Kenya Keekorok Lodge 13 14 1 1 Mara paratype 1915523633 [1013,1252,332,357] TAU Freidberg Kenya A 13 14 1 A paratype 1915523611 1970-03-17 Kenya Nature Reserve 13 14 7 1 6 Isiolo paratype 1915523653 1971-03-23 Kenya -3.0333333 Tsavo National Park 1307 38.716667 13 14 4 3 1 River paratype 1915523623 [393,1146,404,429] 1971-02-22 Kenya Tsavo National Park 13 14 342 185 157 River paratype 1915523579 [1163,1431,404,429] 1971-02-22 Kenya Tsavo National Park 13 14 3 3 River paratype 1915523627 [151,976,439,464] 1971-02-20 ZSM Tschirnhaus Kenya Tsavo National Park 13 14 137 82 55 River paratype 1915523572 1997-02-19 NMWC J. W. Ismay Zimbabwe Harare 13 14 1 1 Harare paratype