March. 1919.] McAtee: Berytid.e (Heteroptera) . 91 



curved spine ; median vein of clavus and all veins of corium beset 

 with numerous strong, curved retrorse spines; juncture of marginal 

 and terminal veins of corium almost over end of abdomen; mem- 

 brane reduced to a narrow strip along inner side of wide, inflated 

 corium and forming a curved acuminate terminal appendage with 

 three raised veins; ostiolar process tubular, slightly curved poste- 

 riorly, obliquely truncate ; venter with many rows of bristled tuber- 

 cles ; beak almost or quite attaining hind coxae; rostral sulcus scarcely 

 evident on prosternum, deep, in some cases, almost pit-like on meso- 

 sternum, narrowed between middle coxae, then almost regaining its 

 anterior width and depth on metasternum, broader and shallower on 

 first abdominal segment; with distinct raised margin throughout. 



Acanthophysa echinata Uhler. 



Acanthophysa echinata Uhler, P. R. Citation as under genus. [Argus Mts. 

 and Los Angeles, Calif.] 



General color stramineous, spines more yellowish ; antennae indis- 

 tinctly brownish annulate, terminal joint black; femora indistinctly 

 spotted, the enlarged apex covered by a broad fuscous band; tibiae 

 annulate, tarsi mostly dark. Length 3-4 mm. 



Specimens examined are from San Bernardino and Argus Mts. 

 (the type), Calif., and Las Vegas, Hot Springs, N. Mex. 



A specimen from Los Angeles Co., Calif., has the elytra propor- 

 tionally narrower than in the typical form and the membrane a trifle 

 more developed though retaining the characteristic shape. This 

 specimen differs from all the others also in having the dark mark- 

 ings very distinct, resembling in this respect the preceding species. 



It is barely possible that Saurocoris instans is the macropterous 

 state of Acanthophysa echinata, but until this is demonstrated by 

 field or breeding studies, I prefer to treat the forms as here done. 

 The present arrangement is justified by the characters of the speci- 

 mens at hand, and the other course could only be taken by guess. 

 Risking possible creation of synonyms, which can easily be assigned 

 to their proper places when the whole truth is known, is better than 

 publishing misidentifications which once established in the literature 

 are almost ineradicable. 



The true characters of the genus Hoplinus Stal ascertained from 

 the description of the type species Ncides spinosissiinus Signoret 



