70 



Nothrus 



. Hairs on margin of Abel, and Rost. hairs setiform 

 ^ J and pectinated — 18. 



j Hairs on margin of Abd. and Rost, hairs clavate. 



< L. 700 li 14. N. rugnlosus . . . p. 73 



2g I Post, margin convex. — L. 660 ,u 11. H". invermstus . . p. 72 



\ Post, margin concave — L. 750 |a 3. N. bicarmatus . . p. 70 



1. N. anauniensis Can. &Fanz. 1876 A. a., Canestrini & Fanzago in: Atti Soc 

 Veneto-Trent., v. 5 p. 102 ] 1877 A. a., Canestrini & Panzago in: Atti 1st. Veneto, ser. 5 

 ».4 p. 92 t. 2 f. 2 | 1885 A. a., Berlese, A. M. S.. fasc. 17 nr. 7 | ?1895 A. trimcatus T 

 Banks in : Tr. Amer. ent. Soc, v. 22 p. 14 j 1896 Angelia sylvestris, Berlese. A. 31. S., 

 Crypt, H j). 26. 



Im. Like N. sylvestris, but ung. tricl. or bid. through the atrophy of one 

 lateral Ung. of trid. Ung. Post, and lat. margins of Abd. rounder. L. ca. 

 800 yi. 



This Species is stated in error by Canestrini (1885, Prosp. Acarof., v. 1 p. 30) to 

 be identical with N. palustris. 



Algeria, Italy and ?New York State. 



2. N". banksi Michael*) 1895 N. furcatus (non C.L.Koch 1844!). Banks in: 

 Tr. Amer. ent. Soc, v. 22 p. 14. 



Im. Keddish brown. Apparently very like N. targionii, but hairs round 

 Abd. and Kost. hairs not stated to be pectinated, and there is stated to be 

 a curved transverse ridge between the post, ends of the raised lateral margin,, 

 and in median line of Dors, of Abd. a forked ridge reaching 

 from ant. margin to near transverse ridge. 4 simple hairs on each 

 branch of fork. Ung. trid. L. 700 |u. 



Washington State. 



3. N. biearinatus C. L. Koch 1840 N. b., C. L. Koch. C, M. A., fasc. 29 1. 16 



| 1855 A. b., Mcolet in: Arch. Mus. Paris, v. 7 p. 456 t. 7 f . 3 | 1877 N. b., Canestrini &. 

 Fanzago in: Atti 1st. Veneto, ser. 5 v. 4 p. 94 | 1885 A. b., Berlese, A. M. S., fasc 17 nr. 4 

 | 1888 A. b., Michael, Brit, Orib., v. 2 p. 514 t. 47 A f. 1—5 | 1840 A. ventricosus f 

 C. L. Koch, C. M. A., fasc. 29 t, 17 | 1840 A. rostratus, C. L. Koch, C, 31. A., fasc. 29' 

 1. 19 (with dirt on Lam. hair) | 1844 A. pigerrimus, C. L. Koch, C. M. A., fasc. 38 t, 3. 



Im. Kesembles N. horridus, but has not central flat projection below 

 post, margin of Dors, of Abd. L. ca. 750 p.. 



On trees etc., especially Oaks. England, France, Germany, Italy. 



4. N. biciliatus C. L. Koch 1844 A. b., C. L. Koch, C. M. A., fasc. 38 t. 2. 



Im. Cephth. black, Abd. red-brown. Psstg. org. very long, thick 

 at base, but thin and setiform for the greater part of lenght. 

 Abd. oval, truncated anteriorly, flat; central part slightly raised and bearing 

 at its edge a row of curved clavate hairs, then comes a deep sulcation 

 then abroad raised border bearing a row of similar but larger hairs- 

 on outer edge. Legs with clavate hairs. Ung.? L. ..mittelgross - '. — 

 A good species imperfectly described. 



In moss on wood. Germany. 



*) The name of furcatus used by Banks is preoccupied in the genus Xothrus, 

 C. L. Koch having used it for a creature which is really a Nymph of Xothrus segnis r 

 but although Koch's name has failed it cannot, under the rules which govern „Das 

 Tierreich" be repeated in the same genus. I have therefore named the species in 

 honor of Mr. Banks. A. I). Michael. 



