552 • MAJOR E. E. AUSTEN ON THE 



amounting to twenty specimens, in the Hope Department of the 

 Oxford University Museum ; and to Dr. Hugh Scott, F.E.S., 

 for similarly allowing the author to examine a female of Pant- 

 ophthabims chuni Enderl. and a larva (represented in text-fig. 1, 

 on p. 557) of P. tahaninus Thunb.,both of which are the property 

 of the Uiiiversity Museum of Zoology, Oamhridgo. 



It only remains to add that, unless otherwise stated, all speci- 

 mens mentioned in the following pages, including the types of 

 new species, are in the British Museum (Natural Histoi-y). 



(b) Bibliography/. 



Apart from descriptions of genera and species already pub- 

 lished, references to which will be fonnd in the " tSysteiuatic 

 Portion " (h) of this paper, the more important items comprised 

 in the scanty literature of Pantophthalmidje are the following : — 



Brauer, Fr. — Description of a dried larva of Pantopkthalmus 

 (Acanthomera) frauenfeldi Schin. Denkschr. K. Akad. 

 Wiss., Math.'-Naturw. 01., Bd. xlvii. p. 25, Taf. ii. 



figs. 25a-25e(Wien, 1883). 

 OsTEN Sacken, Baron 0. R. — " Fam. Acanthomerida?." Biol. 



Oentr.-Amer., Diptera, vol. i. pp. 63-68 (1886). 

 FiEBRiG, K. — " Eine morphologisch und biologisch interessante 



Dipterenlarve aus Paraguay (Acanthoviera teretruncmn 



sp. n. Fiebrig)." Zeitschr. f. wiss. Insektenbiologie, 



Bd. ii. pp. 316-323, 344-347, figs. 1-19 (1906). 

 WiLLiSTON, S. W. — " Family Acanthomeridfe." Manual of N. 



Amer. Diptera, 3rd Ed., pp. 173-175, figs. 2, 61, 62 



(London : M'"m. Wesley k Son, 28 Essex Street, Striuul, 



1908). 

 Enderlein, G. — " Die Dipteren-Familie Pantophthalmida3." Zool. 



Anzeiger, Bd. xli. pp. 97-118, figs. 1-15 (1912). 

 Enderlein, G, — " Weitere Beitrage zur Kenntnis der Pant- 



ophthalmiden." Zool. Anzeiger, Bd. xliv. no. 13, pp. 577- 



586 (July 28, 1914). 

 Hermann, F. — " Ein neuer Pantopkthalmus nebst kritischen 



Bemerkungen iiber die Systematik der Pantophthalmiden 



(Dipt.)." Deutsche Ent. Zeitschrift, Jahrg. 1916, pp. 43- 



49, Abt. 1, 2 ri916). 



(c) Geographical Distribution. 



Pantoph thai mid ae are confined to the Neotropical Begion, 

 where, however, their range is wide, extending from Mexico to 

 Paraguay, and including at least a portion of the West Indies. 

 It is true that, as pointed out by Osten Sacken {loc. cit. p. (SiS), 

 Thvxnberg's statement {cf. infra, p. 562) as to the provenance of 

 the type of Pantophthalmus tahaninus — the first species of this 

 family to be described — "still requires confirmation." Neverfche- 



