THE JUMPING GROUND BUGS. 651 



IV. Nannocoris Reuter, 1891, 18. 



This genus is easily known from others of the family by the 

 porrect conical head (fig. 14) with beak arising from its front 

 end, and reaching hind coxse; under side of head grooved and 

 sterna hollowed out for reception of beak (fig. 15) ; pronotum 

 subquadrate, about twice as wide at base as long at middle, disk 

 in our species with two transverse impressions, one subapical, 

 the other, wider and more ill-defined, behind the middle ; elytra 

 in great part coriaceous, their venation as in fig. 16, the veins 

 elevated as obtuse ridges, costal margin somewhat flattened, 

 recurved and sub-hyaline. Other characters as in generic key. 

 Six species are known, five from tropical America, the other 

 from our territory. 



628 ( — ). Nannocoris arenaria sp. nov. 



Broadly oval, subdepressed. Color above and below a nearly uni- 

 form fuscous-brown, thinly clothed with a very fine bluish-gray pruinose 

 pubescence, head a paler brown ; antenna?, legs and recurved costal mar- 

 gin of elytra dull yellow. Head regularly narrowed from eyes to apex, 

 thickly minutely granulate without tubercle or median concavity, about 

 three times as long as the length of an eye. Antennae with joints 1 and 



2 very short, subcylindrical, glabrous, subequal in length and thickness; 



3 and 4 slender, pilose with long hairs, each about three times as long as 

 1 and 2 united. Pronotum finely granulated, its posterior transverse 

 groove deeper on sides than on middle of disk, humeral angles subnodu- 

 lose, hind margin truncate. Scutellum very small, triangular, the mar- 

 gins of its basal half thickened (fig. 17). Elytra with costal margin 

 broadly and evenly rounded and reflexed, venation of disk as in fig. 16, 

 tips but slightly surpassing abdomen. Ventrals finely and rather sparse- 

 ly punctate, each puncture enclosing a minute yellow bristle; fifth ventral 

 as long as third and fourth united, its apex obtusely rounded. Length, 

 1—1.2 mm. 



Dunedin, Fla., Jan. 4 — Feb. 16 ; a dozen or more specimens 

 sifted from debris in the bases of dense tufts of grass growing 

 on the middle ridge and sides of an otherwise bare sandy road- 

 way through the pinelands, a few hundred yards from the bay 

 front. When sifted onto paper they leaped vigorously several 

 times in succession. It is evidently allied to A', flavomarginata M. 

 & M. from Canal Zone, but that species has the hind margin of 

 pronotum and part of apical third of elytra yellowish, and no 

 mention is made of its having a sub-basal transverse impres- 

 sion on pronotum. 



