1899.] NATURAL SCIENCES OF PHILADELPHIA. 199 



Salius (Priocnemis) tomentosus Tasch. 



Ypiranga. 

 Salius (Priocnemis) dumosus Lep. 



Rio Graude do Sul and Estado do Sao Paulo. 

 Pompilus erubescens Tasch. 

 Pompilus bituberculatus Spin. (= vnlpes D. T.). 



The Pompilus bituberculatus of Guerin belongs to the genus 

 Salius. Therefore the changing of the name of Spinola's Pompilus 

 bituberculatus by Dalla Torre is unnecessary, and not to be followed, 

 Pompilus argenteus Ta8ch. 



Ypiranga. 



Pompilus areatus Tasch. 

 Pompilus amethystinus Fabr. 



Ypiranga. 

 Pompilus Hempelii n. sp. 



9. — Black; wings pale yellow, with a pale fuscous apical band; 

 head convex in front, impressed; clypeus very short, transverse, 

 subtruncate, its fore margin shining; antenme inserted close to 

 base of clypeus, tolerably short, not as long as head and thorax, 

 the flagellum tapering but little to apex, the first joint a little 

 longer than second; eyes somewhat converging above; thorax nar- 

 row and elongate; pronotum indistinctly subangulate posteriorly; 

 middle segment not impressed above, very indistinctly so poste- 

 riorly ; tibise spinose, but the hind pair feebly so ; no tarsal comb ; 

 claws armed with a tooth within near base; abdomen with black 

 hairs at apex ; cubital vein of hind wings originating beyond apex 

 of submediau cell; first recurrent vein received by second submar- 

 ginal in about middle ; second recurrent vein sinuous, received by 

 third submargiual before middle; the latter cell narrowed aljout 

 one-half above. Length, 11 mm. 



Ypiranga (August 16), A Hempel. According to Kohl's tables 

 of the Pompilidie this species falls into his Group 7 of the genus 

 Pompilus. 



Ammophila abbreviata Fabr. 

 Sceliphron fistulare Dhlb. 

 Spbex subhyalinus n. sp. 



9. — Black; head and thorax with black pubescence, no silvery 

 spots; wings hyaline, very faintly tinged with yellow, and with 



