Gymbaeremfteus 



67 



Key to the good species. 

 | Psstg. org. short, with short peduncle and small almost globular head - 2. 

 | Psstg. org. long, straight, rod-like — L. 700 u. . . . 4. C. tibialis . . . p. 88 

 | Markings on Dors, of Abd. coarse reticulations — 3. 



2 Markings on Dors, of Abd. ridges, more or less 



transverse, radiating on margin. L. 380 p . . 3. C. fimbriatus . p. 67 

 | Margin of Dors, of Abd. turned up. L. 400 



3 —700". 2 - C. cymba . . . p. 67 



I Margin of Dors, of Abd. turned down. — L. 290 u 1- C. brevipes . . p. 67 



1. C. brevipes (Michael) 1888 Eremaeusb., Michael, Brit. Orib.. v. 2 p. 475 

 t. 44 f. 12—19 | 1896 E. b., Berlese, A. M. S., Crypt. II p. 36 | 1891 E. minimus, Berlese, 

 A. M. S.. fasc. 58 nr. 9 j 1891 E. Fockeui, Moniez in: Rev.biol.NordFran.ee, v. 3 nr. 6. 



Im. Light to dark brown, dull, rough; short pyriform. Cephth. with 

 raised dots but uo regular markings. Psstg. org. with short peduncle and 

 globular head. Legs short, 4 scarcely reaches post, margin. Ung. almost 

 homd. Abd. widest near post, margin ; convex in centre; a broad margin 

 flat or sloping downward. Dors, of Abd. rather regularly reticulated, 

 reticulations about 9 |u ; a few very fine curved caducent hairs on Dors, of Abd. 

 and post, margin. — Nph. Yellow-brown, dull, leathery. A sulcation between 

 Eost. and remainder of Cephth., which has longitudinal folds. Psstg. org. 

 like Im. Dors, of Abd. with some large cuticular folds regularly arranged, 

 6 short clavate hairs on post, margin in groups of 3. — Im. L. ca. 290 u. 



On trees, particularly Oaks. England. 



2. C. cymba (Nic.) 1855 Eremaeus c, Nicolet in: Arch. Mus. Paris, v. 7 p. 452 

 t. 10 f. 3 ! 1877 E.c, Canestrini & Fanzago in: Atti 1st. Veneto, ser. 5 0.4 p. 90 \ ?1886 

 E.c, Berlese, A.M.S., fasc. 33 nr. 10 | 1888 E.c, Michael, Brit. Orib., v. 2 p. 470 t.44 

 f. 1— 11 | 1896 Cymbaeremaeies c, Berlese, A. M. S., Crypt. II p. 37. 



Im. Light yellow-brown, dull, rough ; almost pyriform ; slightly pointed 

 posteriorly. Rost. very blunt and round; Psstg. org. with very short 

 peduncle and globular head. Cephth. coarsely granulated and bears 

 longitudinal and transverse ridges. Legs short, rough, femora large, those 

 of legs 1 and 2 with slender peduncles. Ung. hetd. Abd. oval, truncated, 

 ant. margin sharply raised, centre slightly convex. Whole Dors, of Abd. 

 coarsely and irregularly reticulated by ridges, interspaces more finely 

 reticulated. Some very short thick caducent hairs on dors, plate of Abd. 

 and post, margin. Ventr. surface reticulated like dorsal. — Nph. Buff. 

 Legs and rost. reddish; dull, leathery, resembles Im., but rost. less broad, 

 femora without fine peduncles. Dors, of Abd. and ventr. surface irregu- 

 larly wrinkled instead of reticulated, hairs minute with short peduncle and 

 globular head. — Im. L. ca. 400 — 700 u. 



On Oak trees etc. England, France, *? Italy, Netherlands. 



3. C. fimbriatus (Michael) 1890 Eremaeus f., Michael in: P. zool. Soc. London, 

 p. 422 t. 37 f . 6 | ?1896 E. marginalis, Banks in: Tr. Amer. ent. Soc, v. 23 p. 76. 



Im. Red-brown, rough, dull. Cephth. arched, bears numerous irregular 

 rough dots and ridges. Psstg. org. very short, peduncle hardly shows, head 

 globular. Legs short, 4. not reaching post, margin. Abd. compressed dorso- 

 ventrally. Ant. margin of Abd. truncated, post, margin round. Central 

 part of Dors, of Abd. arched, elliptical, has slightly turned-up edge ; out- 

 side this a deep trench and then a broad, slightly arched border. Whole 



