68 



Cymbaeremaeus. Nothrus 



Dors, of Abd. bears numerous rough, broken, irregular, more or less 

 transverse ridges, which are radiating on margin. Ung. hetd. 

 L. ca. 380 |u. 



Algeria. ? America. 



4. C. tibialis (Mc.) 1855 Eremaeus t., Nieolet in: Arch. Mus. Paris, v. 7 

 p. 452 t. 10 f. 2. 



Im. Dark red-brown, finely granulated, legs yellow, smooth. Psstg. 

 org. long, straight, rigid, directed obliquely backward. Abd. oval, Dors, 

 of Abd. concave, hairless, a red, polished, almost circular boss in 

 median line close to ant. margin, a similar projection, but rough, on post, 

 margin. — Nph. Greenish-yellow with red shades, sub-fusiform, almost flat. 

 Rost. sharply demarcated from remainder of Cephth. 2 or 3 transverse lines 

 like segmentations on Cephth., uot always seen on fully grown Nph. 

 Psstg. org. like Im. Abd. widest anteriorly much narrowed posteriorly, 

 terminating in 2 papillae each bearing a hair longer than bodv. — Im. 

 L. 700 \i. 



France. Rare. 



C. miimtus (0. L. Kocli) 1835 Cepheus m., 0. L. Koch, C. M. A., fasc. 3 1. 12. 



Im. Dark brown; dull, rough. Psstg. org. long, gradually clavate. Abd. 

 elliptical, centre slightly convex, finely wrinkled, a border with edge raised; 4 short 

 hairs on post, margin, generally a light smooth spot on Dors, of Abd. near ant. 

 margin. L. ? 



Germany. 



4. Gen. Nothrus C. L. Koch 



1835 Nothrus (part.). G.L.Koch, C. M. A., fasc. 2.; 1842 N, (part.), C.L.Koch, 

 libers. Arach., c.'d p. 110 j 1855 N. (part.). Nieolet in: Arch. Mus. Paris, v. 7 p. 453 

 1859 N. (part.), Grube in: Arch. Dorpat. Ges., ser. 2 v. 1 p. 417 | 1877 N. (part.), Cane- 

 strini & Fanzago in : Atti 1st. Veneto. ser. 5 v. 4 p. 77 | 1885 N. (part.). Canestrini. Prosp. 

 Acarof., v. 1 p. 9 ) 1888 N. (part.). Michael. Brit. Orib.. v. 2 p. 479 | 1895 K, Banks 

 in: Tr. Amer. ent. Soc, v. 22 p. 13 1 1896 N. + Angeliu (part.). Berlese. A. M. S.. Crypt. II 

 p. 24. 26.*) 



Abd. unsegmented, dors, plate flat, concave or undulated : without Tectp. 

 Legs short. 



19 good and 4 doubtful species. 

 Key to the good species. 

 ^ | Ung. mond. — 2. 

 | Ung. trid. — 4. 



j Abd. not pointed posteriorly; Psstg. of the ordinary type — 3. 

 2 { Abd. shield - shaped (pointed posteriorly); no 



1 projecting tubular Psstg. — L. 290 u . . . . 12 N". monodactylus . p. 72 

 , Post, margin of Abd. rounded, hairs thereon 



J arising from apophyses. — L. 830 u .... 19. N". targionii . . . p. 74 



| Post, margin truncated, hairs thereon sessile. — 



y L. 660 |u 17. K". sylvestris . . . p. 73 



*) The genus Angelia is formed to receive part of Koch's genus Nothrus including 

 N. palustris, which appears to be Berlese's type, ( but as this is Koch's type it cannot 

 be moved into a new genus but must remain the type of Nothrus. if the genus were 

 divided the other group should be renamed, but the present author does not consider 

 division necessary. A. D. Michael. 



