Cameron, 1884 : 126 Macreupelmus dromedarius (Cameron) Gibson, 1995 : 219 Revision of the Neotropical genus Macreupelmus Ashmead (Hymenoptera: Chalcidoidea: Eupelmidae) Gibson, Gary A. P. Zootaxa 2016 4161 1 81 115 3X2HS Cameron Cameron [151,635,908,934] Insecta Eupelmidae Macreupelmus Animalia Hymenoptera 18 99 Arthropoda species dromedarius      Lutnes dromedarius  Cameron, 1884: 126. Lectotype ♀( BMNH), here designated. Published typedata: Panama, Volcan de Chiriqui,  3000 to 4000 feet, Champion.    Macreupelmus dromedarius(Cameron);  Gibson, 1995: 219.    Macreupelmussp.; Gibson, 1995: figs 27, 28, 139–141, 224, 301–303, 502.   Type material. A single female in the BMNH has the following labels: V. de Chiriqui, | 25–4000ft. | Champion / Type [red-bordered label] /  Lutnes|  dromedarius| Cameron | B Ca Hy. i, 126 / B.C.A. Hymen. I. |  Lutnes|  dromedarius| Cam. [upside down printed label] / NHMUK 0 10198542. Cameron (1884)did not state the number of females on which he based  Lutnes dromedarius, but stated that the length was 5–6 mm, which suggests at least two. For this reason I designate the female as lectotype of  M. dromedariusand have labelled it as such. The contorted lectotypeis minutien-mounted into a foam block through the posterior of the mesoscutum and middle of the mesopectus. It is entire except the right front leg is glued to a rectangular card below the foam block and the right metatarsus is missing.   Description.FEMALE (habitus: Fig. 63). Head ( Fig. 68) with face partly green ventrally but with variably extensive reddish-violaceous to purple lusters on one or more of interantennal prominence, lower face, and ventrally on parascrobal region, sometimes also within scrobes but usually most of scrobal depression and vertex more greenish-blue to blue whereas scrobal depression dorsally and frons variably extensively darker with reddishviolaceous to purple luster, sometimes entirely between inner orbits to level of posterior ocelli or only mesally and more green to greenish-blue along inner orbits ( Fig. 65); gena mostly green to bluish-green though usually with some reddish-violaceous luster separated from outer orbit; vertex with dark setae mesally between inner orbits. Head with interorbital distance about 0.23–0.25× head width; OOL: POL: LOL: MPOD = 0.23–0.25: 0.7–0.95: 1.1–1.2: 1.0; distance between anterior ocellus and inner orbit about 0.9–1.1× MAOD; frons with anterior ocellus about 1.2–1.4× MAOD from dorsal limit of scrobal depression and with sulcus extending from anterior ocellus to depression; scrobal depression, vertex and frons including interantennal prominence usually entirely micropunctate-reticulate ( Fig. 65) or frons mesally below anterior ocellus sometimes partly coriaceous. Antenna ( Fig. 64) dark brown except apical two clavomeres with at least ventral micropilose sensory regions paler; scape robust-compressed, about 3.5–4.0× as long as medial width, and in lateral view apex of pedicel extending to or only slightly beyond ventral margin when at right angle to scape ( Fig. 64).   FIGURES 63–71.  Macreupelmus dromedarius(Cameron): 63, lateral habitus (2016-1); 64, antenna (2016-20); 65, frons (2016-1); 66, fore wing costal cell (2016-2); 67, medial part of fore wing (2016-2); 68, head (2016-1); 69, propodeal plical region (2016-20); 70, Gt6, posterolateral view (2016-20); 71, setal color pattern of mediocubital fold (2016-24). Mesoscutum not or carinate only mediolongitudinally for short distance near posterior of anteromedial lobe; scutellar-axillar complex with axillae and scutellum similarly coarsely meshlike reticulate but reticulations on scutellum aligned more longitudinally so sometimes to appear partly strigose. Front leg dark brown except tarsus sometimes paler, more orangish. Middle leg dark brown with trochantellus except ventrobasally and femur apically white; posterior surface with region of longer white setae submesally ( Fig. 10); tibia with 3–6 pegs in straight or only slightly offset row. Hind leg dark except apex of coxa, trochanter and trochantellus white, femur white to yellowish apically to subapically ( Fig. 63) with subcircular pale region only rarely extending to dorsoapical and/or apicolateral margins, tibia white basally, and tarsus with apex of basitarsus and one or two subsequent tarsomeres orangish, but most of basitarsus and at least apical two tarsomeres darker brown ( Fig. 63). Fore wing ( Fig. 9) usually with distinct hyaline band with white setae near base of parastigma extending from submarginal vein along basal fold and mediocubital fold basally to separate dark setae of basal cell and infuscate basal part of disc ( Fig. 67), though very rarely with only a few inconspicuous white setae ( Fig. 71); disc with posterobasally tapered anterior hyaline region with white setae not extending to mediocubital fold and with small hyaline region with white setae along posterior margin opposite anterior hyaline region ( Fig. 67); costal cell with a variable number of dark setae dorsally along length, but at most with 1 or 2 lines not extending to base of cell ( Fig. 66). Propodeum ( Fig. 69) with plical region very short, with foramen broadly ∩-like incurved virtually to medially, narrowly V-like incised anterior margin, with posterior margin of foramen not vertically raised and transverse-triangular panels reticulate-rugulose. Gaster mostly dark brown dorsally, but under some angles of light with purple to reddish-violaceous lusters laterally on Gt1–Gt5 and sometimes dorsally on Gt5, and Gt6 and syntergum with green to blue luster; Gt6 meshlike reticulate. Ovipositor sheaths longer than metatibia ( Fig. 63), about 1.1–1.4× metatibia length.     Materialexamined. BELIZE. Las Cuevas,  IX.1965, T. King& A. Howe(1 CNC).   COSTA RICA. Alajuela, 5 kmW San Ramón,  1200m,  VII.1997, O. Castro& P. Hanson(1 MZUCR).  GuanacasteProv.,  GuanacasteNatl. Pk, Sector Santa Rosa, Bosque San Emilio, 10º51'N 85º37'W,  250–300m, D. Janzen& I. Gauld: BH-12-C, shade in semi-evergreen for.,  29.XI–20.XII.1986(1 CNC); SE-5-O, clearing deciduous forest, 24.VIII–14.IX(1 CNC), 7– 28.XII, 1985 (2 CNC, one CNC Photo2016-1); SE-6-C, deciduous forest, shade,  5–26.X.1985(3 CNC),  16.XI– 7.XII.1985(1 CNC),  7–28.XII.1985(2 CNC); SE-7-O, deciduous forest clearing, 29.XI–20.XII.1986(2 CNC), 20.XII.1986– 10.I. 1987(1 CNC, Photo 2016-2); SE-8-C, shade in scrubby woodland, 5–26.X.1985(1 CNC), 7– 28.XII.1985(5 CNC), 28.XII.1985– 18.I.1986(2 CNC), 29.XI–20.XII.1986(1 CNC, Photo 2016-3), 20.XII.1986– 10.I.1987(2 CNC).  Guanacaste, Santa Rosa National Park,  300m,  2–23.I.1998, D. Janzen& I.D. Gauld(1 CNC).  Guanacaste, Santa Rosa National Park,  300m,  2–23.I.1998, D. Janzen& I.D. Gauld(1 CNC).  Heredia, Est. Biol. La Selva, 10º26'N 84º01'W,  100m, II–IV.1993,  18.X.1994, P. Hanson(2 MZUCR).  HerediaPr., La Selva Biol. Sta.,  3 kmS Pto.[ Puerto] Viejo, 10º26'N 84º01'W,  3.VIII.1996(1 CNC),  3.VIII.1986(1 CNC), H.A. Hespenheide. Puntar[enas], Golfo Dulce,  10 kmW Piedras Blancas,  100m,  III–V.1989, Hanson(1 CNC).  Puntarenas, R.F. Golfo Dulce: 24 kmW Piedras Blancas,  200 m,  IV–V.1991, P. Hanson(1 MZUCR, 1 CNCPhoto  2016-24);  3 kmSW Rincón,  10m,  XII.1991( CNC Photo  2016-20),  II.1993, Hanson& Godoy(2 MZUCR).  San JoseCiudad Colón, 800m—XII.1989–  I.1999(1 CNC),  II.1990(2 CNC), Luis Fournier; II.1990, L. Fournier & P. Hanson (1 MZUCR).   MEXICO. VC [ VeracruzState], 33 kmNE Catemaco,  160m,  1.VII.1983, M. Kaulbars(1 CNC).   Distribution(Map 1B).  Belize*, Costa Rica*,  Mexico*,  Panama.   Remarks.  Macreupelmus dromedariusand  M. erwinicomprise a species pair differentiated from all other  Macreupelmusspecies by their fore wing color pattern—the dark setae of the basal cell and disc being separated by a slender hyaline band with white setae extending from the submarginal vein along the basal fold and mediocubital fold basally ( Figs 9, 67, 76). However, one of 41 examined females of  M. dromedariushas only a few white setae interspaced with dark setae along the basal and mediocubital folds so as to not completely separate the dark basal cell and discal setae ( Fig. 71). Such females could be keyed easily through the second half of couplet 1 and would then key to couplet 4 near  M. crassicornis, as discussed under the latter species. Females of  M. dromedariusand  M. erwiniare readily distinguished by propodeal structure and sculpture of Gt6, as given in the key. 1302840251 BMNH Panama 1067 Published 18 99 1 1 Chiriqui lectotype 1302840253 [199,1137,908,933] 1965-09 CNC T. King & A. Howe Belize Las Cuevas Material 20 101 1 1302840247 1997-07 MZUCR O. Castro & P. Hanson Costa Rica 1200 San Ramon 20 101 1 Alajuela 1302840258 [1033,1232,944,968] Costa Rica Guanacaste 20 101 1 Guanacaste 1302840266 1986-11-29 1986-12-20 1986-11-29 CNC D. Janzen & I. Gauld Costa Rica 275 10.85 Bosque San Emilio 1296 -85.61667 Sector Santa Rosa 20 101 1 Guanacaste 1302840288 1985-10-05 1985-12-28 1985-10-05 CNC Costa Rica Photo 20 101 1 Guanacaste 1302840285 [379,1433,1196,1221] 1998-01-02 1998-01-23 1998-01-02 CNC D. Janzen & I. D. Gauld Costa Rica 300 Santa Rosa National Park 20 101 1 Guanacaste 1302840284 [151,1214,1231,1256] 1998-01-02 1998-01-23 1998-01-02 CNC D. Janzen & I. D. Gauld Costa Rica 300 Santa Rosa National Park 20 101 1 Guanacaste 1302840272 1994-10-18 MZUCR Est. Biol. La Selva & P. Hanson Costa Rica 100 10.433333 Heredia 1298 -84.01667 20 101 1 Heredia 1302840295 1986-08-03 1996-08-03 1986-08-03 CNC La Selva Biol. Sta. & H. A. Hespenheide. Puntar Costa Rica 10.433333 Viejo 1298 -84.01667 Puerto 20 101 1 Heredia 1302840269 [460,1170,1340,1365] 1989-03 1989-05-31 1989-03 CNC Hanson Costa Rica 100 Piedras Blancas 20 101 1 Heredia 1302840267 1991-04 2024 1991-04 MZUCR, CNC R. F. Golfo Dulce & P. Hanson Costa Rica 200 Piedras Blancas 20 101 1 Puntarenas 1302840252 1991-12 2020 1991-12 CNC, MZUCR Photo & Hanson & Godoy Costa Rica 10 Rincon 20 101 1 Puntarenas 1302840268 1990-02 1999-01 1990-02 CNC Costa Rica San Jose 20 101 1 San Jose 1302840283 [151,1234,1484,1509] 1983-07-01 CNC M. Kaulbars Mexico 160 Catemaco 20 101 1 Veracruz