AMERICAN APTERA. 75 



very short, not as long as the breadth of body, clothed with fine short bristles; 

 last joints of legs i and iv about as long as the penultiiijate and slightly enlarged 

 at tips ; mouth-parts retracted ; genital opening once its length in front of the 

 smaller anal opening. 



One specimen, Puntu (Jonla, Flu. (Mr.s. A. T. Slosson). 



Bdcllii fciiclla nov. sp. — Lcnglh .(> mm. Pale reddisli, irregularly mot- 

 tled with blackish; four or five elongate pale strijjcs on tlie cej)halothorax ; ab- 

 domen marked with blackish, darkest ou the sides, paler below ; legs whitish 

 hyaline; mandibles and i)alpi reddish. Mandibles very long and slender over 

 once and one-half as long as the cephalothorax, with two bristles above on each 

 side; second joint of paljjus about three-fourths as long as the mandibles; third 

 and fourth very short ; fifth about twice as long as broad, not one-third as long 

 as the second joint, three bristles near the truncate tip. one very short, an outer 

 one as long as the mandibles, and an inner one-half as long; the cejihalotliorax 

 is broader than long, truncate in front, rounded liehiud, narrower than the ab- 

 domen, a short bristle at each corner. A))domen about twice as long as broad, 

 concave at base, the shoulders projecting, contracted in the middle and broadly 

 rounded at tip, a short stiff bristle ou each shoulder, and about six similar ones 

 around the apex. Legs short and very stout, with some stiff bristles. 



Under hark of oak trees, Sea Cliff, N. Y., May. Readily sepa- 

 rated from B. cardiiiall.f by its mottled appearance and slender form. 



EiipodOM lliai'iiiiis nov. sp. — Length .3.5 mm. When alive, bright red 

 in color, in acohol it becomes greenish, with a pale median stripe on the abdomen, 

 legs hyaline ; the cephalothorax is narrower than the abdomen, somewhat trian- 

 gular, truncate in front, no distinct eyes; mandibles quite prominent, half as 

 long as the cephalothorax ; palpi thick and stout, penultimate joint not twice as 

 long as broad, last joint not half as long as the penultimate, pointed, and with 

 several sl>ort stiff spines at tip. Abdomen somewhat swollen at shoulders, about 

 once and one-half as long as broad, tapering behind and broadly rounded at tip, 

 above with a few scattered blunt hairs, a longer one on each shoulder and about 

 a dozen at tip. Legs short, with fine hairs; leg i the longest, but plainly shorter 

 than the body, femur i not quite as long as the cephalothorax, is broadest at base 

 about equal to the femur plus patella ii ; femur iv thickened as usual in the genus_ 



Kunning over rocks between tide-marks at Sea Cliff, N. Y. It 

 has shorter legs and stouter palpi than E. variabilis. I have seen a 

 few specimens which are a little larger, and are covered with small 

 black spots, but I am not sure that they form a different .s})ecies. 



Orihatclla perfecia nov. sj). — Length .4.") mm. Reddish lirown, a jiale 

 spot at base of abdomen above, legs yellowish ; tectal plate short, broadly cleft in 

 front, tip of each projection slightly truncate and giving rise to a long stiff iiristle 

 superior bristles long, sub-erect ; each side under the tectal plate there is a short 

 elevation bearing a stout curved bristle in front; setse very short, thick and 

 clavate. not half the length of the superior bristles. AbdomcTi depressed, con- 

 vex, finely granulate, with about twenty-five bristles above, all shorter than the 

 bristles of the cephalothorax ; no small spots visible. Wings long, triangular, 

 rounded below, venter with a few scattered short hairs ; genital opening once 



TK.WS. .\M. ENT. SOC. XXItl. MAKCH, 1896. 



