NEW SPIDER WASPS — DREISBACH 181 



rufous, with considerable fine white, appressed pubescence; a narrow 

 white line on anterior orbits from clypeus to antennae; first joint of 

 antennae almost white beneath, rest of antennae yellow beneath 

 slightly very dark reddish above in reflected light; legs all black; 

 head and thorax with a mixture of white appressed pubescence and 

 upright hair, giving it a rather shaggy look; propodeum strongly 

 whitish pubescent on apical fourth; first tergite and second sternite 

 with upright hair and all femora with long hair on ventral surface; 

 clypeus with a semitransparent rim across apex which is much wider 

 at outer corners making the front edge concave in center, the opaque 

 part straight across; third and fourth antennal joints equal in length 

 (17); a rather large heavy-bodied insect yet antennae very slender, 

 cylindrical; clypeus 2.0 as broad as long; upper and lower interocular 

 distances equal (20); head as broad as long; lateral ocelli 1.5 as far 

 from eyes as from each other; wings hyaline, very slightly darkened 

 in reflected light, tip of wing not darker; wing veins and stigma yellow; 

 parameres of genitalia narrow for the genus and rather sharp pointed, 

 the ridge near middle curved; the apex of volsellae generally, some- 

 what rectangular; parapenial lobes rather wide; subgenital plate with 

 a small basal triangle which is closed near middle of plate, broader 

 for length than usual. 



Length head and thorax 6.3 mm., abdomen 4.7 mm., foremng 9.9 

 mm., rear ^ving 7.0 mm.; length genitalia 1.13 mm., width 0.66 mm., 

 length subgenital plate 1.13 mm., width about 0.6 mm. 



Holotype male: Volcan, Colima, Mexico, 1913, Joh. Lane (Munich 

 Mus.). 



47. Auplopus gaumeri, new species 



Figures 30, 31 



Holotype male. Clypeus and sides of face black, the middle of face 

 just below antennae bluish green; rest of head bluish green with purple 

 reflection; thorax bluish green (not as strongly colored as head) ^vith 

 piu"ple reflection; abdomen brownish, sides slightly yellowish, espe- 

 cially the first tergite, reflecting an obscure violet, slightly pruinose; 

 antennae yeUow (lost after thii'd joint); legs all yellow beyond tro- 

 chanters, the latter slightly yellowish beneath; clypeus and face with 

 appressed sericeous pubescence, long hairs under head, the rest of 

 body with very little pubescence, except propodeum slightly pubescent 

 on outer edges; apical edge of clypeus thickened, and a notch each 

 side of middle; clypeus 2.5 as broad as long; length third antennal 

 joint is 16 (same scale as usual); upper and lower interocular distance 

 about equal; head 0.9 as long as broad; parameres of genitalia of very 

 large size, the width of one of them equal to the width of the whole 

 base of genitalia; the cross-ridge or septum of the parameres located 



