214 Universitij of California Puhlications. [Extomology 



12. Head vertical; dimorphic, females ovate, with eyes strongly arcuated 



and membrane abbreviated, males with elytra parallel; green or 

 green and black insects 12. Labopidea Uhl. 



— Head oblique, produced before eyes for about length of eye 13 



13. Large green ovate species, with the body narrowed before and behind, 



tylus moderately produced; rostrum reaching to middle of venter 

 (type Macrotylus vestitus Uhl.) 13. Macrotyloides n. gen. 



— Smaller and more slender species, with the body linear; tylus com- 



pressed and semicircularly prominent, occupying about half the 

 length of head beyond apex of eyes 14. Argyrocoris Van D. 



Tribe Phylixi Douglas and Scott 

 Prosternal xyphus depressed on its disk, its margin more or less elevated; 



arolia rather long and flattened, usually united with the claws 



Division 1. Oncotylaria Eeut. 



Prosternal xyphus convex, immarginate; arolia short and united with the 



claws or wanting Division 2. Phylaria D. and S. 



Division 1. Oncotylaria Rent. 



Tarsal claws short and strongly incurved; arolia free, laminate, as long 

 as the claws; clypeus ])rominent, ■viewed from the side strongly 

 curved _ 1. Macrotylus Fieb. 



Tarsal claws longer, nearly straight, or somewhat curved toward their 

 apex 1 



1. Head long, rostrate-jiroduced, when viewed from the side projecting 



before the eye for about twice the length of the eye ; prosternal xyphus 

 sometimes moderately convex, but a distinct marginal carina can 

 be seen when vestiture is removed; body broad, ovate, much nar- 

 rowed before; surface clothed with a fine wliitish vestiture inter- 

 mixed with stifi: black hairs 2. Haplomachidea Eeut. 



— Head not produced before the eye for more than length of the eye; 



body oblong or elongated, clothed with a minute or uniform vesti- 

 ture 2 



2. Clypeus prominent, its base but poorly distinguished from the front, 



placed much above the line of antennae; basal lobe of scutellum 

 much exposed; arolia long, exceeding apex of claws, with which 

 they are united for their whole length 3. Onychumenus Rent. 



— Clypeus moderately prominent, its base well distinguished from the 



front and placed a little above the line of antennae; base of pro- 

 notum rectilinear, leaving basal lobe of scutellum but narrowly 

 exposed; arolia slender, becoming free toward their apex and sur- 

 passing the middle of the claws 4. Oncotylus Fieb. 



Division 2. Phylaria Douglas and Scott 

 Head more or less produced; when viewed from the side having facial 

 angle (between bucculae and line of clypeus) less than a right 

 angle 1 



