NO. 1869. 



NEW SPECIES OF WASPS— ROHWEB. 



449 



smaller than the second; suture between the first and second ventral 

 segments not foveolate; first two dorsal segments punctured Uke the 

 mesoscutum, the apex of the second densely so and reflexed; second 

 ventral segment rather more sparsely so except at the apex, where it 

 is closely punctured. Black; clypeus pale 3'ellow; scape, pedicellum, 

 nasal orbits to and filling emargination, obhque line from superior 

 orbits nearly meeting in middle, spot on posterior orbits, pronotum, 

 except a triangular lateral spot, spot below tegulae, tegulae, two small 

 spots on scutellum, line on metanotum, legs below trochanters, two 

 nearly confluent spots on first and second dorsal segments and lateral 

 spots on second ventral (these spots are confluent with the apical band) 

 rufous; apex of all the segments narrowly yellow; clypeus, thorax and 

 basal abdominal segments vnih appressed wliite pubescence, that of 

 the clypeus somewhat silver}^; head (dense on face) and thorax with 

 erect black hairs; wings strongly dusky, apically with a violaceous 

 tinge, basally wdtli a yellowish tinge; venation dark bro\vn. 



Federal District of Mexico. One male from Prof. Guillermo Gan- 

 dara. 



Type.—Csit. No. 14176, U.S.N.M. 



Genus ANCISTROCERUS Wesmeal. 



ANCISTROCERUS (STENANCISTROCERUS) CEANOXm, new species. 



Superficially veiy like sxcularis Saussure, but has the tubercles 

 between the lateral ocelli well developed. Very close to fulvipes 

 Saussure, but differs from that species thus: 



A. fulvipes Saussure. 



FEMALE. 



1. Anterior lateral angles of the pronotum dentate. 



2. Clypeus truncate. 



3. Fcmca mostly rufo-ferrunginous. 



4. Second dorsal segment without a free pale spot. 



5. Clypeus distinctly longer than wide, the emar- 



gination .shallower and broader. 



6. Color characters of female. 



A . ceanolhi, new species. 



1. Anterior lateral angles of the pronotum not den- 



tate. 



2. Clypeus emarginate, bidentate. 



3. Femora mostly black. 



4. Second dorsal segment with a free pale spot. 



MALE. 



5. Clypeus but little longer than wide, the emar- 



gination narrow and deep, the teeth sharp. 



6. Color characters of female. 



Glencarlyn, Virginia. Female and two males collected June 8 on 

 flowers of Ccanothus. Also a female collected June 14 on flowers of 

 Ceanothus at Falls Church, A^irginia. All collected by Mr. N. Banks. 



r?/pe.— Cat. No. 14183, U.S.N.M. 



If Robertson's interpretation ^ of ssecularis Saussure is incorrect, 

 tliis may prove to be Saussure's species, as it agrees well \vith his 

 description. 



' Trans. Amer. F.nt. Soc, vol. 27, April, 1901, p. 190. 

 94428°— Proc.N.M.vol.41— 11 29 



