184 [August, 



localities 8])ecially noted bv Evans, margins of the Masliarra C'anal, 

 barley- fields near Cliahala below Amara, and large marsh twelve miles 

 below Amara. The specimens are all more or less matui-e, the males all 

 showing pruinosity, and the females also partially pruinose. Practically 

 all the specimens taken in the iirst half of May, but reported common 

 by May 27th. No further indications are given as to the duration of 

 the species beyond the remark by Evans (S.ix.lS), "None seen recently." 



I think there can be no doubt about the identification of these 

 specimens with 0. triiiacria. They differ somewhat from Egyptian 

 examples in their opener venation ; in Ks-Espl there is not regularly a 

 double row of cells, but only occasional double cells. Excepting the old 

 Sicilian records, the distribution of the species as hitherto known has 

 been exclusively African, including Madagascar. 



Evans, in lit. 5. v. 18, says: " First seen May 2nd, 1918, and is now 

 more abundant than O. sahiiui, but not very much so. A beautiful 

 creature in life, but very difiicult to obtain. It inhabits the same spots 

 and behaves in the same way as O.i^ahina, but the wings are held almost 

 horizontal. In life the male differs from the female in the latter having 

 green stripes on the thorax, which are absent in the male." (This 

 apjiarent dilfei'ence is probably due to the males being more pruinose.) 



11. — OrfJietniw taeniolaium Schn. 

 3 $ $ , November 14th and 20th, 1918: on rocks, Table Mountain, 

 Jebel Hamrin, near Kuz {Ei-ans) ; all rather innnature specimens. 



CROcoTHE^yris. 



liis ( C'(j11. Zool. Sclys. Libelhdinen, p. 540 ), admittudl^yas a matter of 

 convenience, ti'eats (Jrocullirmis o'l/tlirard and ('. scrvilia as two separate 

 species, the former including those from the Western p;ilaearctic region, 

 eastward at least as fai- as Kashgar, and Africa with Madagascar ; the 

 latter those from India. Indo-Malaya to Celebes, New Guinea, the 

 Philippines, China, Formosa, and Japan. 



The Western forms considered under G. erytliraea seem to be fairly 

 homogeneous, but a more puzzling complex is revealed when those asso- 

 ciated under C. servilia come to be dealt witli. McLachlan seems to 

 have tackled the problem repeatedly, and Avrote that he had again tried 

 probably for the seventh time, "but once again," he says, "1 have failed 

 to find any certain structural characters," adding, "some other investi- 

 gator may be more fortunate." 



Kriiger (Stett. Ent. Zeit, 1902, p. 122) believed that a specific 

 difference existed, which, however, was still to be found. He suggests 



