236 PH^ENOGLYPEIS XANTHOCHEOA. 



is not twice so long as broad, which is certainly the 

 case in our largest British species ; and in it also the 

 areolet is complete, another point in which it differs 

 from Foerster 's description. 



Foerster describes a genus Hemichrisis, which agrees 

 with Phdsnoglyphis in having the parapsidal furrows 

 indicated (although not complete), while the scutellum 

 has no foveae at its base. He further defines it from 

 Phdenoglyphis in the radial cellule being " almost twice 

 as long as broad," and the areolet is complete. The 

 latter two points are merely specific, while no sharp line 

 of demarcation can be drawn as to the completeness of 

 the parapsidal furrows. Thus the only real point of 

 distinction between them lies in, according to Foerster, 

 Hemichrisis not having a fovea at the base of the 

 scutellum. In P. solids the fovea at the base of the 

 scutellum is obscure, so that it may be said to be inter- 

 mediate between Phdenoglyphis and Hemichrisis. 



Synopsis of Species. 



1 (4) Body rufo-testaceous ; second abscissa of radius twice the length 



of first. 



2 (3) AntennsQ entirely rufo-testaceous. Xanthochroa. 



3 (2) Antennae fuscous, testaceous at base. Forticornis. 



4 (1) Body black ; second abscissa of radius not twice the length of 



first. Salicis. 



1. PH^NOGLYPHIS XANTHOCHEOA. 

 PI. XV, fig. 4 



Phsenoglyphis xanthochroa, Foerster, Verh. z.-b. Ges. Wien, 



1869, 338. 

 Auloxysta rufa, Thomson, Opusc. Ent., 812. 



Reddish-testaceous ; the back and apex of abdomen fuscous ; shining, 

 glabrous. The antennae longer than the body, slender, the joints elon- 

 gated ; parapsidal furrows deep, scarcely parallel ; scutellar fovea dis- 

 tinct ; radial cellule elongated, the second abscissa of radius more than 

 twice the length of first ; first abscissa of radius obliterated at the base ; 

 areolet obliquely triangular, open at foot ; nervures obscure testaceous. 

 Eyes black, legs paler at the base. $ 



Length 2 mm. 



