1919] Bequaert — Nearctic Psaminockarids of Genus Aporinellus Banks 123 



the European genus Aporus Spinola; its exact position, however, 

 cannot be decided upon till the female is discovered. 



Aporus rufiventris Cresson, 1872,^ is undoubtedly not an Apori- 

 nellus as can readily be seen from the description: it possesses 

 three cubital cells in the fore wings and has the propodeum trans- 

 versely wrinkled ; the abdomen is entirely bright fulvo-ferruginous,. 

 sericeous. Mr. Banks, who once examined the type, informs me 

 that it most probably belongs in Pedinaspis. It was described on. 

 a 9 from Texas. Length about 7 mm. 



Several of the Psammocharids described from Mexico undoubt- 

 edly belong to Aporinellus and in some instances may even be 

 identical with some of the species known from the United States. 



Pompilus twniatus Kohl- from Orizaba, Mexico, certainly is an 

 Aporinellus. There are two cubital cells and the author writes in 

 the description: "Mittelsegment beiderseits zahnformig ausge- 

 zogen und zeigt genau die Bildung wie bei P. 6-maculatus." The 

 size, color and arrangement of the sericeous pubescence are similar 

 to those of A. ferrugineipes (Viereck) with which this species is 

 perhaps identical. 



Pompilus (Aporus) yucatanensis Cameron^ of North Yucatan, 

 Mexico, is said to have "the median segment rather long; the apex 

 oblique, at the sides projecting into stout teeth-like processes. 

 . . . The fore wings with only two cubital cellules." Un- 

 doubtedly an Aporinellus and perhaps not specifically different 

 from A.fasciatus. 



Pompilus (Aporus) decorus Cameron, P. moniicola Cameron, P. 

 flavomarginatus Cameron and P. (Aporus) smithianus Cameron,^ 

 all of Mexico, apparently are not true Aporinellus though possess- 

 ing two cubital cells in the fore wings. 



1 Trans. Amer. Ent. Soc. 4, p. 207. 



2 Verb, zool.— bot. Ges. Wien 36, 1886, pp. 315 and 336. 

 ' Biologia Centr. Amer. Hymenoptera 2, 1893, p. 189. 

 '^Op. cit. pp. 190-191. 



