REVISION OF GENUS EUCERCERIS CRESSON 63 



(H. A. Scullen and Duis Bolinger). They are deposited at the U.S. 

 National Museum, no. 69230. 



Paratypes.— MEXICO: 15 ? 9 , 25cf cf , 32 mi. SE. of Guaymas, Son., Mexico, 

 125 ft. elev., Sept. 24, 1963 (H. A. Scullen and Dius Bolinger). 



Distribution. — Known only from the type location. 



Prey record. — None. 



Plant record. — Baccharis glutinosa. 



33. Eucerceris stangei, new species 



Figures 39, 91 a, b, c, d, e, f, g, h, i, j 



Female. — Length 12 mm. Black with yellow markings; punctation 

 small and crowded; pubescence general, of average length. 



Head shghtly wider than the thorax; black except for small eye 

 patches, a small patch between the antennal scrobes and small spots 

 back of the eyes, all of which are yellow; clypeal border \vith two 

 prominent blunt extensions on the medial clypeal lobe between which 

 there is a group of prominent bristles; clypeal surface without distinct 

 elevations; a low cone-shaped elevation on the frons between the 

 antennal scrobes; mandibles with a single prominent denticle curved 

 ventrad, distad of which there is a concavity; antennae normal in 

 form. 



Thorax black, immaculate; pronotum \vith noticable elevations 

 dorso-laterally; tegulae punctate over most of their surfaces; scutellum, 

 metanotum and the entire propodeum, including the enclosure, closely 

 and finely punctate; mesosternal tubercles absent; legs black except 

 for an evanescent stripe on each tibia and a Ughter area at the apical 

 end of the 3rd femur; wings subhyaline but darker along the anterior 

 half, 2nd submarginal cell petiolate. 



Abdomen black except as follows: band on the apical half of tergum 

 3, two parallel bands on terga 4 and 5, tergum 6 exclusive of the pygidium, 

 and broad bands on sterna 3, 4, and 5, all of which are yellow; pygidium 

 with sides slightly convex and converging apically to a rounded apex, 

 amber sUghtly infused mth black. 



Male. — Length 12 mm. Black with yellow markings; punctation 

 small and crowded; pubescence general, longer than average on 

 many parts. 



Head slightly wider than the thorax; black except for the entire 

 face, basal three fourths of mandibles, anterior surface of the scape 

 and a small spot back of the eye, all of which are yellow; clypeal 

 surface depressed medially, border slightly extended on the medial 

 lobe, margin without denticles; a low carina between the antennal 



