NEW AMKIilCAN ACARINA. 215 



1.— Tlie dorsal groove eiilarfted at middle, and not at tlic posterior end ; dorsum 

 with fine short hairs ; hist joint of leg i longer than the jirecediiig joint. 



roxeiis. 

 The groove enlarged at posterior end, and not in the middle; last joint of 



leg i shorter than the preceding 2. 



2.- -Hairs on dorsum of two kinds, long erect spines and shorter, finer hairs. ...3. 



Hairs on dorsum all of one kind, either spinous or fine hairs 4. 



3. — Penultimate joint of leg i ahout five times an long as last joint; hodv 



globular loiiK'P*''*. 



Penultimate joint of leg i about twice as long as last joint; bod.v (>l)long. 



flattened siiiiplt'.i;. 



4. — Fourth pair of legs much longer than the body 7. 



Fourth pair of legs equal to or barely longer than the body 5. 



5. — Dorsal groove reaching much beyond eyes; dorsum with short, spinous 



hairs K. 



Dorsal groove not reaching beyond eyes; dorsum with fine, slender hairs. 



pilOMIIN. 



<). — Dorsum with some smooth patches iii;i<*iilaliis. 



Dorsum wholly covered with hairs t«'.i:aini>*. 



7. — Penultimate joint of leg iv thiee times. as long as last joint 8. 



Penultimate joint of leg iv but little over twice as long as last .joint : ilor- 



sum with many erect hairs ci noli pes. 



8.— Sparsely clothed with stiff, erect hairs parvus. 



Thickly clothed with short, stout hairs iiioiitaniiN. 



Kli.yiicolopliiiM roseiis uov. sp. — Length 3 mm.; leg i, 1.9 mm.; leg iv, 



2 mm. Red ; body oblong, thick, slightly broader just behind leg ii. The eyes 

 on each side are close together; the gioove extends a little past the eyes, and is 

 not enlarged at posterior end, but near the middle; legs very short, the last joint 

 of leg i, slightly enlarged, and a little longer than the preceding joint. Dorsum 

 clothed with short, fine hairs, those on the legs longer. Palpi short, third joint 

 as broad as long, fourth short and with a short claw. 



Washington, D. C, under leaves in the woods. 

 This species may form a separate genus, as it differs considerably 

 tVoiu the usual form of Ehyncolopkus. 



KliyiicolophiiM loiig^ipes !iov. sp. — Iicugth 1 mm. ; leg i. 4.6 mm.; leg 



iv, .^.2 mm. Body globular, with the general appearance of a Phalangid. Body 

 and legs quite thickly clothed with long, black spines, and shorter, stiff, black 

 hairs. Two large eyes each side, about their diameter apart, situated above the 

 second pair of legs; dorsal groove reaching as far back as the eyes and enlarged 

 at tip. Legs very long and slender, the last joint of leg i is about one-fifth the 

 length of the preceding joint. Palpi very spinose. especially at the base of the 

 fourth joint, which ends in a stout claw ; the thumb barely reaching beyond the 

 claw. 



Florida. 



KliyiiC'olopliiis siliiple.'K nov. sp. — Length 2.2 mm.; leg i, 3 mm.; leg 

 iv, 3.6 mm. Red ; body oblong, l)roadly rounded behind, with a row of about 

 three depressions each side. Dorsum cloi;hed with many fine, short hairs and 



TRANS. AM. ENT. SOC. XXI. JUNE, 1894. 



