Vol. XXVi] ENTOMOLOGICAL NEWS. 211 



ferior part is the epistemum, the smaller and postcro-supcrior 

 the epimeron." The dividing line is not a true suture, but 

 results from an infolding of the integument for nrasde^ttach- 

 ment. It appears significant that the high development of 

 these structures is correlated with the characteristic activity of 

 these insects, which run about with great rapidity and take 

 wing almost as readily as flies. In the Miridae and certain 

 closely related families the ttemura is composite^ the parts 

 being separated by a median longitudinal nttore and confluent 

 on the sides with the epistema. 



The Mbtathokax. (Plate vii, fig. i.) 

 The pleural region is divided as in the preceding segment 

 bat here the epimeron is rebtivdy smaller. The orifices of 

 the scent glands lie between the middle and hind coxae. They 

 are of very variable form in this family and may be reduced 

 or absent in certain groups. The sternum is composite. 



The Ahx)men. 



The abdomen in the Miridae consists of ten segments, all of 



which can be seen only in a dorsal view. The spiracles, fig. 



I, are located laterally, near the dorsal edge of the ventral 



its. except the first pair which is on the tergum. The 



■■\ fcginaiitt are very different in the sexes, figs, i, 2. 3, 



the male being asymmetrical Good specific duiracters will 



doubtless be afforded by the genitalia, but these structures are 



yet to be investi^ted in detail. 



The AaouA. 

 The parts of the legs, fig. S, afford a number of characters, 

 all of which are easily observable, except the arolia, which 

 require some discussion, being very important tixonomically 

 though somewhat obscure. In Adtlpkocoris, fig. 10. the arolia 

 are to be seen as two elongated membranous structures at- 

 tached to the end of the last tarsal joint between the claws. They 

 are approximated basally and divergent apically. In Lopidea, 



" Thi* use of tbcM teroM corresponds wtth that com m on in other 

 orders hut hardly afreet with Renter's statement (L c p. 90). where 

 some error. possAUy typog r a phical, seems cvidenL 



