March, 1919.] McAtee: Berytid.e (Heteroptera) . 85 



means indicates a glorious position in the galaxy of science ; it may 

 be just the reverse. In taxonomic work as elsewhere quality counts. 



Aknisus calvus new species. 



This species has the same type of ostiolar process as A. multispinus, -with 

 which, chiefly on that account, it is associated in a new genus. The present 

 species is similar to A. multispinus throughout except that front of vertex is 

 smoothly rounded over, there being no indication of a frontal tubercle. Length 

 6—7 mm. 



Two specimens in National Collection, one from Modesto, Calif., 

 March 31-April 1, 1910, H. Osborn, and one from Lindsay, Calif., 

 July 13, 1909, W. A. Davidson, of which the former is the type. 



Jalysus Stal. 

 Jalysus Stal, C. Bidrag till Rio Janeiro-Traktens. Hemipter-Fauna, Pt. 2, 

 1862, p. 59. [Included species, sobrinus, tenellus and macer Stal; the 

 latter is the genotype.] 



Front of vertex with or without spine ; 5 thorax with distinct cal- 

 losities ; sides and median line very low carinate and area within 

 humeri elevated; scutellum with short, sharp, posteriorly inclined 

 spine; elytra spineless, corium not conspicuously punctate; ostiolar 

 process shorter, less curved, and not twisted, canal entirely on the 

 outer side, apex of process a rather long spine ; beak nearly or quite 

 attaining hind coxae; no indication of rostral position on underside of 

 head; sulcus beginning at middle of prosternum, narrow and shallow 

 between fore coxae; much widened on mesosternum, flanked on each 

 side by 5-6 indentations, abruptly contracted as it passes between 

 middle coxae, then widened again on mestasternum, but not attaining 

 width of part anterior to coxa?, the whole meso- and metasternal 

 parts of sulcus with distinct, carinate edges; sulcus fairly well devel- 

 oped on first abdominal segment, percurrent, with broad flat longi- 

 tudinally wrinkled margins. 



Key to the Species. 



Front of vertex with a long, sharp, sometimes decurved spine ; scutellar spine 

 depressed, almost horizontal elongatus Barber. 



Front of vertex without spines, scutellar spine inclined at an angle of 45 

 degrees spinosus Say. 



5 The front of vertex in Jalysus exhibits considerable variation in struc- 

 ture, which, however, has not been found to be related to the place of collec- 

 tion of specimens, or otherwise available for taxonomic purposes. 



