652 FAMILY XXV. — CRYPTOSTEMMATID^E. 



V. GLYPTOCOMBUS Heidemann, 1906a, 192. 



Very small, broadly oval convex species having the head as 

 broad across eyes as half the length of body, its front flattened, 

 almost vertical ; eyes as in generic key ; beak reaching middle 

 coxae, its second joint as long as the other two united ; pro- 

 notum twice as broad as long, its disk with a distinct subapical 

 transverse impression and also a vague narrow one near hind 

 margin, front portion with two rather large calli ; scutellum 

 broadly triangular, its basal half impressed, apical one convex, 

 obtuse ; elytra as in key, conjointly oval, slightly surpassing 

 abdomen, each with a depression along the commissure so they 

 can overlap either way, their venation as in figure 20. Male 

 with five distinct ventrals, the apical one shorter than in fe- 

 male ; genital plate reflexed on sides of abdomen beneath the 

 elytra (fig. 19). One species is known. 



629 (1280). Glyptocombus saltator Heidemann, 1906a, 194. 



Dull black, above sparsely clothed with short decumbent silvery 

 hairs; legs, beak and basal joints of antenna? brownish-yellow, femora, 

 base of tibiae and tips of tarsi somewhat darker; under surface dull 

 blackish, densely pilose, the hind margin of each ventral with a fringe 

 of short hairs. Joint 1 of antennae slightly longer than 2, 3 somewhat 

 thickened at base, subequal in length to 4, the latter more hairy. Elytra 

 sparsely, coarsely and deeply punctured between the veins. Length, 

 1.2—1.5 mm. (PI. VII, fig. 18). 



Known only from Plummer's Island, Md., and the District 

 of Columbia. Of it Heidemann (loc. cit.) says: "This species 

 is most difficult to collect and is only to be found by sifting fall- 

 en leaves, rubbish and earth. The collector must watch pa- 

 tiently until the minute insect makes its presence known by 

 jumping, and even then it takes a skillful hand to secure it in 

 a vial." 



Family XXVI. ISOMETOPID^E Fieber, 1860, 259. 



The Jumping Tree Bugs. 



Small oval flattened species having the head short, inserted 

 in thorax to eyes, its front usually flattened and vertical ; ocelli 

 present, located between and close to the eyes, the latter very 

 large, only moderately convex ; antennae 4-jointed, joint 2 stout, 

 longer than the others united ; beak 4-jointed ; pronotum 

 trapezoidal, much wider than head and twice or more wider 

 than long; mesoscutum always exposed; scutellum triangular, 



