200 PROCEEDINGS OF THE ACADEMY OF [1899. 



darker apical margin, the nervures forming the submargiual and 

 discoidal cells brownish; inner eye-margins parallel- clypeus very 

 similar to that of S. fuliginosus ; space between hind ocelli, if any- 

 thing, very slightly less than that between them and eyes ; scutellura 

 flat, not impressed ; postscutellum impressed ; middle segment 

 almost smooth, subopaque ; metatarsus of fore leg bearing at least 

 nine long spines outwardly; petiole fully as long as second joint of 

 hind tarsus ; aljdomen shining, nude, with the exception of a few 

 long black hairs beneath and apicg-lly. Length, 28 mm. 



Ypiranga. One specimen. Related to fuliginoms and caligi- 

 nosus, but easily distinguished by pale wings, entire scutellum, etc. 



Sphex caliginosus Er. 

 Sphex fuliginosus Plug, 

 Sphex ruficaudus Taach. 



The single specimen in the collection represents a variety with 

 dark wings (= S. proxinm.^ Sm.). 



Sphex dubitatus Cress. 

 Sphex ingens Sm. 



Sphex (Chlorion) hemiprasinus Sichel. 

 Larra americana Sauss. 

 Monedula surinamensis De G. 

 Monedula signata Linn6. 

 Monedula magnifica Party. 

 Monedula punctata Fabr. 

 Iguape, December 21. 



Monedula arcuata Burm. 

 Tachytes scalaris Tasch. 

 Trypoxylon fuscipenne Fabr. 



Sao Paulo. 

 Trypoxylon ornatum Sm. 



Sao Paulo. 

 Cerceris basalis Sm. 

 Montezumia sepulchralis Sauss. 



