98 ICHNIX'MOXID.T-. 



strongl}'^ iufumate apical cloud ; radius strongly sinuate above the 

 entire areolet ; internal cubital nervui'e straight ; median recurrent 

 of the hind wings strongly postfurcal and emitting the nervellus at 

 its junction witli the median nervure. 



Holmgren compares his genus with TJieronia ; and Cameron 

 savs (he. cit.) that, in its elongate face, the conformation of the 

 areolet and of the radial nervure, this genus resembles Lissophnpla 

 ( = Xenopimpht , Cam. Manch. Mem. 1898, p. 28); but that the 

 latter differs in having the mesonotum trilobate, the metathorax 

 transversely striate and laterally dentate, the abdomen quite 

 glabrous and the hind femora dentate beneath near tlieir apices. 

 Unfortunately he entirely overlooked the peculiar position of the 

 nervellus, which, I have very little doubt, relates this genus and 

 Lissophnpla closely with EpirJu/ssci. 



The ))eculiarly high emission of the nervellus, figured both 

 in 1899 (Manch" Mem. pi. iii, tig. 6) and 1905 (8pol. Zeyl. pi. B, 

 fig. 8) in the case of the typical species, Chrj/sopimphi omatipes, 

 led Krieger to synouj-mise Cameron's genus with Echthromorpha, 

 Holmg.,.a course which is certainly correct ; it received sanction 

 from Cameron himself in 1905. 



Our knowledge of the genus has considerablv augmented since 

 Cameron stated (Trans. Nat. Hist. Glasgow, 1885, p. 2(35) * that 

 its species were confined to the oceanic islands. Ascension, 

 Hawaii and St. Helena ; we now know it from broad tracts of 

 at least Asia, Africa and Australia, though apparently confined to 

 tropical and subtropical latitudes. 



For a full account of the present genus, cf. Prof. Dr. H. Krieger 

 in Mitteilungeu aus dem Zool. Museum, Berlin, 1908, pj). 295-344, 

 and mv own paper on the British Museum examples (Eev. Ichn. 

 Brit. Mus. ii, 1913, p. 36). 



TahJe of Species. 



1 (6) Abdomen broadly testaceous or banded ; 



metathorax glabrous, apopliyses 

 wanting. 



2 (3) Metathorax and coxae testaceous ; abdo- 



men mainly pale insidiator, Smitli, p. 99. 



3 (2) Met ithorax and coxae black and fiavous ; 



abdomen broadly black-banded. 



4 (5) Thorax more or less punctate ; areolet 



distinctly petiolate notitlaforia, F., p. 100. 



5 (4) Thorax entirely glabrous ; areolet sub- 



sessile persiii/i/is, Cam., p. 101. 



6 (1) Abdomen black, with pale spots ; meta- ^^ 



thorax strigose, apophyses strong . . intricafuria, F., p. 102^ ' 



* TLiere appears to be little doubt that Echthromorpha tvalh-eri. Cam. {loc. 

 cit.). the tvpe of which is in tlie British Mu.seum, may cvmstitute the alternate 

 sex of Pimpla ac/res/oriiis, S«ecl. et (imel., also taken bv Sir Josepli Banks and 

 Dr. Coppinger in Tahiti.— C/. Morley, Entom. 1909, p. 135. 



