6 ENTOMOLOGICAL NEWS. [January, 



description, except that sometimes they have small spots on 

 tegttlse. 



At Waldoboro, Maine, I have taken 32 female specimens 

 that agree with the above description. My first specimens this 

 season were taken July i5th on Aralia hispida, my last August 

 igth on the goldenrod. I have also taken these females on 

 Spircca salicifoUa, Ilex rcrticillafa, Conms stolon if era and the 

 wild rose. In size they show considerable variation. I have 

 also taken in this locality 1 1 female specimens which have the 

 face marks but slightly triangular or reduced to a narrow 

 stripe. In one of these forms the collar is dark and the spots 

 on tubercles are very small, otherwise they are typical. The 

 markings are occasionally orange colored. 



r5\ Clypeus, supraclypeal piece and sides of face yellow, upward ex- 

 tensions of lateral face marks tapering to a point. Anterior tibiae in front 

 and base of all the others are tarsi-yellow. First abdominal segment 

 shining, punctuation sparse and faint, otherwise as in female. 



Elkhart, Indiana, 19 specimens. 



In Illinois, according to Robertson, 13 male specimens agree 

 with this description, six had a yellow line on mandibles, five 

 a yellow spot on labrum, one had the scape yellow in front and. 

 three had no spot on collar. 



While the females of P. modesta are our commonest forms of 

 Prosopis in Maine, the males are comparatively rare. As the 

 result of much diligent collecting in this genus, I have taken 

 but four males of P. modesta, two (taken on the goldenrod 

 August i gth and aoth) agree with the above description, the 

 third has no spots on collar, the fourth (taken July i6th on 

 Shircca salicifolia) has no spots on collar, but a spot on labrum 

 and yellow lines on mandibles. 



5. P. affinis Sm., 1853. 



P. zizicz Rob., 1896. 



9- I have from Indiana a single specimen. It differs from P. modcsfa 

 in having a yellow spot on tegulae and the edges of wing-base yellow. 

 Six female specimens collected at Waldoboro, Maine, conform to the 

 type. As noticed by Cockerell they are rather smaller than P. modest a. 



July 1 6th on Aralia hispida to August nth on goldenrod. 

 1 . Differs from the male of P. modesta in the broad truncation of the 



