128 HYMENOPTERA. 



low. Robertson says concerning it, " according to my sepa- 

 ration of them P. illinoiensis sometimes has a dot on the 

 tegula, and P. sayi often has ". Obviously such a distinction 

 is worthless. I have examined specimens supposedly of 

 this, identified by Cockerell, Swenk, and others, no two of 

 which agree, and all of which are only forms of modesties. 



P. eidophi, male and female, described by Robertson in 1905, 

 from Illinois specimens, is indistinguishable by the descrip- 

 tion. This cannot be placed definitely until the types are ex- 

 amined. The description states, " face narrowed nearly one- 

 half below, — face below antennae whitish, on eye margin 

 pointed as high as middle of scape ", etc. I have provision- 

 ally included this here because the rest of the description of 

 the male, and the description of the female agree with viodes- 

 tus, and as far as can be told from the statement about the 

 markings they also agree. 



P. supracurta, male, was described by Swk. and Ckll. in 

 1910, from a Colorado specimen. The description states, 

 " very similar to the same sex of P. sayi Rob. but basal ab- 

 dominal segment more strongly punctured, — may prove to 

 be only a subspecies of that form ". I have before me the 

 type of this from Mr. Swenk, and find it indistinguishable 

 except as one in the series of forms. The face of the speci- 

 men is shown in figure 96. 



P. modestiis var. minyra, (Lov.). 

 This form was described as a distinct species from Virginia 

 specimens. The extreme specimens are distinguished by 

 being very small, and having long upper extensions of lateral 

 marks as described. Only the extreme individuals, however, 

 can be distinguished from the ordinary ones and this in a 

 purely arbitrary manner. Along with specimens of this are 

 found every variation in size and markings between it and 

 the others. In a series from Wisconsin containing a number 

 of these small specimens the intergradation is shown per- 

 fectly, many of the smallest having shorter, tapering lateral 

 marks, or even marks that are almost truncate at the level 

 of the antennal socket ; and other specimens of much larger 

 size have the long marks well formed ; in genitalia they show 



