392 Lord Rotliscliild o?i Lepldoptera collected on 



of a Hfemopregaiine, X 1500, B=botrvoidal tissue; C = co- 

 agulated leech-blood; S=s})ores ; W = wall of blood-vessel. 

 Fiff. 3. Tricliodina s\^., X 750. A = acetabulum ; D = ingested diatoms; 

 G = lateral groove ; N = iiucleus. 



Plate XVII. 



Fiff. 1. Parasites from blood of Sco7nber scomber. 1 k S. Typical forms 

 in medium lymphocytes. 2. Double infection in lympho- 

 cyte. 4 "-^ '^' >?ingle Jliiltericliiim-like bodies in erythrocytes. 

 5 Sz 6. Double infection by smaller rounded forms. 



lig. 2. Jlfcmogreyarina sp. from blood of Main batis. 1-Jf. Typical 

 examples of the pai'asite. 5. A case of double infection. 



XLVII. — On the Lepidoptera collected in 1913-1914 hi/ Herr 

 Geyr von Schioepp>enharg on a Journey to the Iloggar 

 Mountains (Sahara). By LORD KOTHSCHlLD, F.K.S., 

 Ph.D. 



[Concluded from p. 258.] 



Part II. 



Geometridae. 



(58) IJemidromodes afinis, sp. n. 



^ . Allied to B. rolnista (Prout), but much smaller, and 



the transverse lines are sharply defined, not merely indicated. 



$ . Also smaller than robusia, and has two conspicuous 



transverse white bands on both wings, whereas the ? o£ 



robusta has no markings. 



Length of fore wing, ^ ^ 6 mm. ; expanse 11 mm. 



„ „ „ ? , 10 mm., ? robusta, 16 mm. 



1 cJ, 1 ?, Tahihout, lApril 28, 1911; 2 ? 2, Amgid, 

 April 22, 1911 (type ?). 



(59) IJemidromodes suhhrunnescens, Prout. 



Hemidromodes subbrunnescens, Prout, Trans. Entom. Soc. Lond. 1915, 

 pt. 3 (Somaliland). 



d (S 6, Pharis, April 15, 1914. 



(60) Acidaliastis micra dissimilis (Warr.). 



dissimilis, Warren, Novit. Zool, vol. xii. p. 26, pi, 



(Nakheila). 



1 ? , Oued Dehin, N. of Idcles, March 20, 1914. 



Euchloris dissimilis, Warren, Novit. Zool, vol. xii. p. 26, pi. iv. fig. 27 

 (1905) (Nakheila), 



