Dec, I9II.] Banks: PsammocharidvE. < 231 



Body strongly sericeous, fourth segment of abdomen broadly sericeous. .. .4 



4. Vertex broader than face below laticeps. 



Vertex narrower than face below fasciatus. 



Pedinaspis. 



Pronotum long, flat, barely arched ; with three submarginal cells, second 

 and third each receiving a recurrent vein ; basal veins interstitial with the 

 transverse, in hind-wings the cubitus always arises beyond the end of the cell ; 

 coxae I not reaching to coxae II ; no spines under last joint of hind tarsi. 



It would probably be better to include in Pedinaspis those species 

 of Planiceps in which the second submarginal cell receives but one 

 recurrent vein, thus restricting Planiceps to those species in which this 

 cell receives both recurrent veins. 



P. Iccvifrons on account of having the ocelli placed so low on the 

 face may form a new subgenus ; it also has the transverse vein in fore- 

 wings sloping backward. 



Psorthaspis n. subgen. — type, Parapompilus Iccvifrons Cress. 



Table of Pedinaspis. 



1. Wings banded 2 



Wings not banded 4 



2. First segment of abdomen black, second black with two yellowish spots, and 



third with basal pale band luctiiosus. 



First and second segments mostly yellowish 3 



3. Tip of abdomen pale legatus. 



Tip of abdomen black maricr. 



4. Abdomen wholly black 5 



Abdomen more or less reddish 9 



5. Wings wholly pale, apical part of abdomen with short, dense white 



hair magniis. 



Wings more or less black 6 



6. Metanotum transversely wrinkled behind; abdomen purplish planahts. 



Metanotum not wrinkled 7 



7. Wings deep black ; metanotum not much excavate behind, and not pubes- 



cent 8 



Wings less black ; metanotum strongly excavate behind, and white pubes- 

 cent australis. 



8. Head smooth ; anterior ocellus about as near to antennae as to vertex 



ridge Iccvifrons. 



Head roughened with lines, ocelli about as high as usual vicinus, 



9. Thorax reddish sanguineus. 



Thorax blackish te.vanus. 



