SUBFAMILY VIII. POLYPHAGINJB. 



109 



Subfamily VIII. POLYPHAGINJE. 



Species of medium size in which the sexes are widely dissim- 

 ilar, the females being wingless with much smaller more narrow 

 eyes and ocelli represented by indistinct spots (Fig. 49, Fj ; males 

 with pronotum and tegmiua thickly covered with hairs, the teg- 

 niiua in our species with veins distinct, and marginal field nar- 

 row, only one-fourth the sub-basal width of the tegmen; lower 

 margin of all the femora unarmed ; middle and hind femora armed 

 above with a single stout, elongate, geuicular spine ; styles absent. 



One of the three recognized genera of the subfamily is repre- 

 sented in Florida. 



G 



Fig. 49. A, B & C, Dorsal views of apical portion of abdomen and cerci X 2 -5> A, 

 Periplaneta amci'icana (L.), male; B, of P. australasia (Fab.), male; C, of P. amerlcana 

 (L.), female; D, Holoccinpsa nitidnla (Fab.), fornale X 3 : E, Plcctoptcra floi'idana Heb., 

 female X 3> F, Arenivaga apaclia (Sauss.), female X 2 > G, Chorisoneura tc.vensis (S. & Z.), 

 male X 3- (After Hebard.) 



1. AREXIVAGA Rehn, 1903c, 181. (Gr. "sands" + "wandering.") 



This genus differs from its nearest ally, Eremoblatta Rehn, in 

 the males having the transverse clypeal swelling of face deeply 

 concave, with ocelli more prominent; middle and hind tibiae w r ith 

 six instead of seven apical spurs, and armed beneath with 4 to G, 

 instead of only two, subapical spines; tarsi very slender and 

 elongate ; abdomen naked beneath. 



Hebard (1917a) recognized four species, all from the desert 

 regions of the southwestern United States west of central Texas. 

 A single male of another species had previously been taken by me 

 at Dunediu, Fla. Not recognizing it from the descriptions in his 

 Monograph, I sent it to Hebard, stating that it was a supposed 

 new species of Arenlvuyu near <i/><idt(i. He returned it as Areni- 



