NO. 2041. THE INSECT FAMILY DELPH ACID AE— CRAWFORD. 577 



COCHISE APACHEANUS Kirkaldy. 



Cochise apacheanus Kirkaldy, Bull. Hawaiian Sugar Planters Association, vol. 4, 

 1907, p. 64. 

 Locality. — Arizona, Nogales (Koebele). 



Genus DELPHAX Fabricius. 



Syn. Araeopus Spinola. 



Body large, stout; head large, about as broad as pro thorax, rather 

 weakly carinate; vertex broad, as broad as long, rounded in front, 

 scarcely produced before eyes; frons broad, sides rounded or angu- 

 late longer than broad, tricarinate; antennae long; I foliaceous, not 

 flat, rounded outward along center, thin above and below; II nearly 

 terete, asperose, a little shorter than I. Eyes large, deeply emar- 

 ginate below. Pronotum long, lateral carinas usually flexed outward; 

 scutellum tricarinate. Elytra sctigerous. Legs very elongate; fore- 

 femora compressed; hind tibi^ long, bispinose; calcar very large, 

 tectiform, deeply concave on one surface, margin finely dentate. 



Type of genus. — Delphax crassicornis Fabricius. 



In the form of the antennae this genus resembles Asiraca, but it is 

 very distinct in the form of the calcar, as well as in some other 

 characters. It is very apparent from the original description of this 

 genus by Fabricius that his type-species is not congeneric with the 

 large group of species which have been for a long time erroneously 

 called Delphax, or Lihurnia by others.^ In 1839 Spinola erected a 

 new genus, A7'aeopus, and indicated as its type-species Fabricius's 

 old species, DelpJiax crassicornis. His species happened to be the 

 type of Delphax, however, and therefore the latter must replace the 

 other as the accepted name for those species related to crassicornis.^ 



The only American representative of this genus was described very 

 briefly by Lethierry from South America. The description is so 

 inadequate that it is impossible to determine with what genus it can 

 be associated if it is not Delphax; therefore it must be retained here 

 for the present. 



DELPHAX CONSPERSINERVIS Lethierry. 

 Delphax conspersinervis Lethierry '90: 151. 

 Locality. — Caracas, Venezuela. 



Genus BOSTAERA Ball. 

 According to Ball this genus has the following characteristics: 



Resembling Stobaera, but a much broader vertex and front; vertex and front broader 

 than in Laccocera, front bicarinate; head transverse, wider than pronotum; vertex 



> See heading Megamelus. 



2 See Fabricius— Supplementum Ent. Systematicse, 1798, p. 522. 



95278°— Proc.N.M.vol.46— 13 37 



