Spider wasps (Hymenoptera: Pompilidae) of the Dominican Republic Author Waichert, Cecilia Utah State University, Department of Biology, 5305 Old Main Hill, Logan, UT 84322 - 5305, USA. cwaichert@gmail.com Author Rodriguez, Juanita Utah State University, Department of Biology, 5305 Old Main Hill, Logan, UT 84322 - 5305, USA. Author Von Dohlen, Carol D. Utah State University, Department of Biology, 5305 Old Main Hill, Logan, UT 84322 - 5305, USA. Author Pitts, James P. Utah State University, Department of Biology, 5305 Old Main Hill, Logan, UT 84322 - 5305, USA. text Zootaxa 2012 2012-06-21 3353 1 1 47 https://biotaxa.org/Zootaxa/article/view/zootaxa.3353.1.1 journal article 10.11646/zootaxa.3353.1.1 1175-5326 5251730 Dipogon ( Deuteragenia ) marlowei Waichert & Pitts , sp. nov. ( Figs 1B–C , 2I , 5G ) Diagnosis. This species can be recognized by the following unique combination of characters: the integument is orange-reddish on the mesosoma and clypeus, dark reddish brown on the head, metasoma and legs ( Fig. 5G ); the antenna is the same color as the mesosoma; the pubescence on the body is short and silver; the maxillary beard is present and long ( Fig. 1B ); the pronotum has the collar differentiated from the disc; the dorsal face of the hind tibia is not spinose; and the wings are translucent, usually with two dark bands and a white spot on the apex ( Fig. 4I ). This last characteristic can be inconspicuous in some specimens. The male of this species is unknown. Description. Holotype , female. Body length 5.30 mm . Fore wing 4.30 mm ; maximum wing width 1.20 mm . Coloration. Head black, dark reddish brown above clypeus; clypeus whitish, base pale brown; mandibular and maxillary palpi pale brown; mandible pale brown, teeth dark reddish brown; antenna pale reddish brown; pronotum, mesosoma, mesonotum, scutellum pale, mesopleurum, postnotum, and propodeum pale reddish brown; metasoma dark reddish brown; wing translucent; dark reddish brown line over R and M veins; dark spot covering first radial 1 cell, first medial cell, second and third radial sectors, white coloration at apex; veins dark reddish brown; and leg pale reddish brown. Head ( Figs 1B–C ). Head wide; TFD 1.15 × FD; MID 0.65 × FD. Ocelli in acute angle, lateral ocelli about as close to each other as to compound eyes; POL 9.80 × OOL. Mandible wide, with three sharpened apical teeth, basalmost larger; pubescence on mandible scarce, longer along apical margin. Clypeus trapezoidal, anterior margin not enlarged, straight; LC 0.48 × WC; clypeal projection not present medially; dorsal surface slightly convex laterally; anterior margin polished, thin. Maxillary beard abundant; setae very long, as long as palpi. Antenna elongate; length of fourth segment 4.25 × its width; ratio of the first four antennal segments 8:4:10:8; WA3 0.2 × LA3; LA3 0.67 × UID. Mesosoma ( Fig. 4I , 5G ). Pubescence sparse, short, golden; punctuation inconspicuous. Pronotum not elongated, posterior margin arched, width 5.50 × length; pronotal collar inconspicuous. Notauli present on very beginning of mesonotum. Postnotum striated; carina shallow, almost polished. Propodeum polished, bare; propodeal disc with few white setae on inferior corner. Wing narrow; third radial sector cell 0.83 × longer than second; second 2m-cu vein slightly curved, meeting third radial sector cell 3.00 × distance from base to apex of cell. Spines absent on anterior and posterior margins of front tibia; spines absent on mid tibia; hind tibia dorsal teeth absent; tibial brush thick, complete. Metasoma. Metasoma polished, covered by long, sparse setae ventrally; pygidium covered by long erect setae; terminal metasomal sternum with sparse, long setae; metasoma 1.19 × as long as mesosoma. Etymology. Named in honor of Raymond Thornton Chandler (1888–1959), an American crime writer who greatly influenced the modern private eye story and created the famous protagonist, Philip Marlowe. Variation. Some paratypes have a pale reddish brown clypeus that lacks the whitish coloration apically and medially. Material examined. Holotype , ♀ , DOMINICAN REPUBLIC : Pedernales , La Abeja , 38 Km NNW, Cabo Rojo , (18–09N, 17–38W), 1250 m , 15.VII.1987 , J. Rawlins , R. Davidson ( CMNH ) . Paratypes : 1 ♀ with same data as holotype ; 3 ♀ , DOMINICAN REPUBLIC : Barahona , Eastern Sierra Bahoruco , Reserva Cachote , 12.8 km NE Paraiso , 18–05–54N, 71– 11.21W , 1230 m , J. Rawlins et al ., cloud forest with tree ferns, yellow pan trap , sample 4426321, 23.III.2004 , CMNH –371,412/ 370,076/ 370,511; 1 ♀ , DOMINICAN REPUBLIC : La Vega , 6 km SE Constanza , 18–52N, 70–42W, 1400 m , J. Rawlins et al ., disturbed fields with scattered pines, 24.XI.1992 , CMNH –370,388. Distribution. Dominican Republic . Host. Unknown. Remarks. Based on the morphological study of South American pompilids by Banks (1946) , this species morphologically resembles D. populator Fox. Dipogon populator differs from D. marlowei in having the body black and pubescence grayish on the head and pronotum. Dipogon marlowei has the head black and the pronotum pale reddish brown, both covered by short golden pubescence. Dipogon marlowei is also similar to the species from Dominica D. spangleri Evans, 1972 , but D. marlowei is reddish orange, including all legs, while D. spangleri is dark reddish brown with black pleurum and ventrum. Besides, wings are hyaline with two dark bands and a white apical spot in D. marlowei , while in D. spangleri they are hyaline with two dark bands, but lack the white spot at the apex.