212 ENTOMOIvOGICAL NEWS. [May, '15 



fig. 12, they are distant basally and convergent apically. In 

 Monalocoris, fig. ii, they are distant basally, but diverge widely 

 so that they remain close to the claws throughout their length. 

 In the subfamily Bryocorinae, to which this genus belongs, the 

 arolia are sometimes adherent to the claws for the greater 

 part of their length, and in certain groups they may be entirely 

 absent. These facts may be generalized, giving the following 

 types of arolia : 



1. Divergent, approximated at base, fig. lo. 



2. Divergent, distant at base, fig. ii. 



3. Convergent or parallel, distant at base, fig. 12. 



The Wings. 

 The hemelytron, fig. 4, consists of the clavus, corium, 

 embolim,'4 cuneus and membrane, the distinctness of which 

 parts constitutes one of the characters of the family Miridae.'s 

 The veins of the hemelytra, according to the opinion of 

 Bergroth/^ should be named morphologically as indicated in 

 parentheses in fig. 4. However, there is some doubt in my 

 mind whether or not this application of the Comstock-Need- 

 ham terminology is wholly correct, and comparative studies in 

 the Heteroptera are needed to establish fully the homologies 

 involved. Purely systematic terms are not available for all 

 the veins, as only two have received names. Thomson'7 called 

 the outer vein of the corium cubitus and the inner brachium, 

 and Renter employs these names because of established usage, 

 though he questions the correctness of the term cubitus. ^^ Ac- 

 cording to the latter author, the brachium, on emerging 

 into the membrane, forms the outer boundaries of the two 

 cells, the dividing line between the cells being an extension of 

 the cubitus. The vein of the clavus may be called the claval 

 and that near the anterior margin of the wing the marginal. 

 The inner longitudinal vein of the membrane has not been used 



^* Not distinct in Adelphocoris, but clearly marked off in other 

 groups, e. g. Hyaliodes Reut. 

 ^' And Anthocoridae. 



^^ Ann. Soc. Ent. Belg., Ivi, 1912, p. 148, footnote. 

 ^^Opuscula Entomologica, fasc. iv, 1871, p. 411. 

 ^^ Festschrift f. Palmen, No. 1, 1905, Hem. Spec. I, p. 31. 



