182 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ii4 



well above apex of volsellae, the apex large and blunt; parapenial 

 lobes nan'ow for size of genitalia; a rather heavy row of spines on 

 upper inside edge of volsellae. 



Length head and thorax 5.6 mm., abdomen 6.0 mm., length fore- 

 wing 8.9 mm., rear wing 6.6 mm.; length genitalia 1.4 mm., width 

 1.13 mm., length subgenital plate 1.2 mm., width 0.066 mm. 



Holotype male: Yucatan, G. F. Gaumer (USNM). 



48. Aiiplopus kathryni new species 



Holotype female. Head and thorax greenish or bluish green with 

 very strong purple reflection, abdomen a deep dark blue; legs all 

 black, coxae bluish in reflected light; antennae black; clypeus and 

 face sericeous pubescent, the head, thorax, and especially the pro- 

 podeum with long white, upright hair; first tergite long-haired on 

 dorsal surface; middle of clypeus extending forward in a slight hairless 

 rim, the front edge convex, sm'face in middle of clypeus raised; clypeus 

 2.0 as broad as long; ratio of lengths of third and fourth antennal 

 joints is 11:10; upper and lower interocular distance equal (16); 

 head not quite 1.2 as broad as long; lateral ocelli almost 3.0 as far 

 from eyes as each other; wings hyaline; fu-st recurrent vein meets 

 second cubital cell just beyond middle, the second recurrent vein 

 meets third cubital cell at basal fourth; veins and stigma very dark 

 yellowish. 



Length head and thorax 4.0 mm., abdomen 3.4 mm., forewing 7.0 

 mm., rear wing 5.2 mm. 



Holotype female: Lagos de Moreno, Mexico, Aug. 12, 1954, R. R. 

 Dreisbach (USNM). 



Paratype female: VaUe de Santiago, Mexico, May 26, 1956, R. 

 Iglesias (Monterey University). 



This species is named for Mrs. Dreisbach who has collected some 

 of the new species described in this paper. 



49. Auplopus fulgidus, new species 



Holotype female. Head and thorax an opaque black, the abdomen a 

 bright shining black, no trace of reflected color; mandibles black except 

 the reddish apex, the palpi light yellow, the antennae black, slightly 

 brownish beneath; coxae and trochanters black except the last pair has 

 trochanters slightly yellowish beneath; all femora, tibiae and basitarsi 

 of all legs a reddish j^ellow; long whitish hair under head on proiDodeum 

 and on apical half of abdominal sternum; the upright hair on front and 

 vertex is white ; no rim on front margin of clypeus the margin truncate 

 not extended in middle as usual ; clypeus not quite 2.0 as broad as long; 

 ratio of lengths of third and fourth joint antennae is 14:11; upper inter- 

 ocular distance (16) not quite equal to the lower (18); head 1.15 as 



