70 Nothrus 



/ Hairs on margin of Abd. and Host, hairs setiform 



I and pectinated 18. 



1 Hairs on margin of Abd. and Rost. hairs clavate. 



L. 700 n 14. N". rugulostts . . . p. 73 



.o j Post, margin convex. L. 660 |u 11. N". invenustus . . p. 72 



\ Post, margin concave L. 750 (a 3. N". bicarinatus . . p. 70 



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

 V T eneto-Trent., v.5 p. 102 ' 1877 N. a., Canestrini & Fanzago in: Atti 1st. Veneto, ser. 5 

 0.4 p. 92 t. 2 f. 2 ; 1885 N. a., Berlese, A. M. S.. fasc. 17 nr. 7 | ?1895 lY. truncatus, 

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

 Crypt, n ]>. 26. 



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

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

 800 )n. 



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. banks! Michael*) 1895 N. furcatus (non C.L.Koch 1844!), Banks in: 

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



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

 Abd. and Rost. 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. bicarinatus C. L. Koch 1840 N. b., C. L. Koch, C. M. A., fasc. 29 t. Iff 

 | 1855 N. b., Xicolet 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 N. b., Berlese, A. M. S., fasc. 17 nr. 4 



1888 N. b., Michael. Brit. Orib., v.2 p. 514 t. 47 A f. 15 | 1840 N. ventricosus, 

 C. L. Koch, C. M. A., fasc. 29 t, 17 | 1840 N. restrains, C. L. Koch, C. 31. A., fasc. 29 

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



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

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



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



4. N. biciliatus C. L. Koch 1844 N. b., C. L. Koch, C. 31. 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 haira 

 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 Nothrus segnis, 

 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. D. Michael. 



