32 



Cepheus 



1. C. bifldatus Nic 1855 C.b., Nicolet in: Arch. Mus. Paris, c. 7 p. 446 t. 31 | 

 1884 C.6., Michael. Brit. Orib.. v. 1 p. 290 1. 16 f. 8; t. 52 f. 2—3. 



Im. Dark brown or black, legs lighter ; dull, broad. Lam. wide, undu- 

 lated, reticulated blades set at angle of about 45°; C. lam. broad, truncated; 

 Lam. hair from middle of truncated edge; Lam. widely separated ante- 

 riorly ; Psstg. at edge of Cephth. directed forward and outward ; Psstg. org. 

 long, curved, almost filiform. Ung. very hetd. Abd. broad, rough, 

 rounded posteriorly, truncated anteriorly; antero-lateral angles elongated, 

 rough. 4 rows of large hairs on Dors, of Abd. — Nph. Of the type of 

 that of Tegeocranus latus, light buff, almost white, legs and Rost. pinkish; 

 rough granular, elliptical. Psstg. org. serrated spines; Intlam. hair 

 similar; Dors, of Abd. flat; cast dorsal skins of Abd. earned fiat, centre of 

 each skin slightly in advance of that below it ; larval skin bordered by about 

 17 thin, curved, sparsely-serrated spines, and has 3 pairs on Dors, 

 of Abd. Each nymphal skin bordered by about 20 chitinous conical 

 papillae, each bearing an extremely long, slender, sparsely serrated 

 spine; some as long as the body, variously curved, hinder spines slightly 

 flexible. — Im. L. ca. 800 u. 



England, France. 



2. C. latus Me. 1855 C.I., Nicolet in: Arch. Mus. Paris, v. 7 p. 446 t. 7 f . 9 | 

 1877 C. I., Canestrini & Fanzago in: Atti 1st. Veneto. ser. 5 v. 4 p. 87 ! 1884 C.I., 

 Michael, Brit, Orib., v. 1 p. 295 1. 17 f. 12 | 1888 C.I., Berlese. A. M.S., fasc. 49 nr. 5. 



Im. Walnut-brown, legs lighter; dull, coarsely reticulated or pitted. 

 Rost. blunt, Lam. light colored, very wide, almost horizontal, rounded and 

 meeting anteriorly. Psstg.org. short, pyriform, recurved. No Intlam. hair 

 in the ordinary position, but a large rod-like hair springs from 

 the inside of each Lam. Tectp. very large. Legs shorter than those of 

 C. tegeocranus. Abd. broad, rounded posteriorly, truncated anteriorly, Dors, 

 of Abd. arched with 4 rows of very small spines. L. ca. 1 mm. 



England, France, Italy, Netherlands. 



3. C. oeellatus Michael 1882 Co., Michael in: J. R. micr. Soc, ser. 2 v. 2 

 p. 1 1. 1 f. 1—9 | 1884 C. o., Michael, Brit. Orib., v. 1 p. 287 1. 16 f. 1—7 | 1896 Scutovertex o., 

 Berlese, A. M. S., Crypt. II p. 46. 



Im. Dark brown or almost black; dull without polish. Rost. sharp, Mdb. 

 small, Cephth. more than 1 j s of total length, flat. Lam. large, light colored, 

 fleshy-looking blades far apart, usually nearly horizontal, widest posteriorly 

 truncated anteriorly, a thick curved spine from lower angle of truncation 

 nearly touches the point of Rost., a longer thinner spine from upper angle 

 runs parallel to first; Trlam. a low thick ridge. Psstg. large, wide, facing 

 straight upward; Psstg. org. almost globular, slightly pyriform, sunk in 

 Psstg. Legs rough; Abd. oval, truncated anteriorly antero-lateral angles 

 produced forward. A broad flattened margin round Dors, of Abd. (except 

 ant. margin) ; this margin is transversely striated and bears a row of short, 

 blunt spines. Central part of Dors, of Abd. arched and divided by ridges 

 into bands each containing a double alternating row of pits. — Nph. 

 Very like that of Liacarus palmicinctus, but scales much smaller and the 

 nervures branched irregularly instead of reticulated. — Im. L. ca, 600 u. 



On lichens. England. 



4. C. tegeocranus (Herm.) 1804 Sotaspis t.. Hermann, Mem. apt., p. 93 t. 4 

 f. 3— 5 | 1844 Oribat a t., Gerrais in : Walckenaer, Ins. Apt., v. 3 p. 258 | 1877 Cepheus t., 



