Hypoehthonius. Phthiracarinae, Hoploderma 77 



Im. Light yellow-brown redder at edges of Abel.; slightly polished. 

 Rost. long, pointed, narrow. Palpi and Psstg. dorsal. Psstg. org. as in 

 H. rufulus. Abd. almost diamond-shaped truncated anteriorly divided into 

 3 segments by 2 transverse cuts, central segment much the smallest, other 

 2 about equal. 4 longitudinal rows of thick white hairs on Dors, of Abd. 

 and about 5 on each side. Ung. mond. L. ca. 360 u. 



In moss. England, Germany, Netherlands. 



4. H. rufulus C. L. Koch 1835 H. r., C. L. Koch, C. M. A., fasc. 3 1. 19 j 1888 

 Hypocthonius r., Michael, Brit. Orib., v. 2 p. 534 t. 49 f. 6 13 i 1855 Leiosoma ovata 

 Xph., Nicolet in : Arch. Mus. Paris, v. 7 p. 395 t. 2 f. 5. 



Im. Yellow -red (tawny) smooth, slightly polished. Cephth. much 

 narrower than Abd. Rost. pointed, palpi conspicuous. Psstg. dorsal Psstg. 

 org. very long, almost filiform, but pointed at distal end, doubly curved, 

 with sparse regularly placed hairs along the ant. edge. Intlam. hair long, 

 filiform. Abd. shield-shaped, divided into 2 equal segments by a 

 transverse cut. Middle of Abd. a continuation of the cone of Cephth. with 

 transverse sulcations, lat. parts broad, thin, semi-transparent blades; 4 longi- 

 tudinal rows of curved filiform hairs on Dors, of Abd. and 2 at edge of 

 ant. division of blade. Ung. mond. - - Nph. Like Im., but paler. - - Im. 

 L. 550750 ju. 



In moss. England. France. Germany, Italy, Switzerland. 



5. H. tectorum Berl. 1896 Hypocthonius t., Berlese. A. M. S.. fasc. 78 nr. 8. 



Im. Varied with yellow-brown, flesh-color and smoky-brown. Psstg. 

 org. and all hairs on body clavate, setose. Abd. truncated anteriorly, 

 pointed posteriorly, divided by a transverse line into 2 unequal segments, 

 anterior the larger. Ung. trid. L. 750 JLI. 



In moss, chiefly on roofs. Italy. 



Gr. Subfam. Phthiracarinae 



1841 Phthiracarea, Perty, Allg. Naturg.. v. 3 p. 874 1885 Subfam. Hoplophoridae, 

 Berlese in: Bull. Soc. ent. Ital., 0.17 p. 127 1891 H., Canestrini in: Atti 1st. Veneto. 

 ser. 7 r. 2 p. 718 | 1892 Hoplophorinae, Tronessart in: Rev. Sci. nat, Guest, p. 2 p. 38* \ 

 1896 Phthiracarea, Oudemans in: Tijdschr. Ent.. v. 39 p. 53 | 1896 Hoplophoridae, 

 Berlese. A. 31. S., Crypt, II p. 14. 



Without Ptm. Cephth. inoveably hinged to Abd. and folding down 

 against its ventr. surface. Dors, surface of Cephth. is covered by a simple, 

 more or less convex, chitinous plate (As pis), this frequently bears a median 

 longitudinal ridge (Carina) (Fig. 14 & 15). Ventr. plate not anchylosed to dors. 



2 genera. 15 good and 3 doubtful species. 



Key to the genera. 



Genital and anal covers separate, Ung. mond 1. Gen. Hoploderma . p. 77 



Genital and anal covers coalescing or joined; Ung. trid. 2. Gen. Phthiracarus . p. 80 



1. Gen. Hoploderma Michael*) 



1835 Hoplophora (non Perty. Orthopt,, 1830!), C. L. Koch, C. M. A., fasc. 2 | 1842 

 H., C. L. Koch, Ubers. Arach., r. 3 p. 116 | 1855 H., Xicolet in: Arch. Mus. Paris, 



*) The name Hoplophora is preoccupied. The new name is derived trom oirXov 

 and bep|Lta. A.D.Michael. 



