236 PROF. M. BEZZI. 



Note. — The two following species seem to belong to the present genus : — 



(a) Tephritis seneqalensis, Macquart, Suites a BufTon, ii, 1835, p. 468. 



Described from Senegal, seems to agree with P. silveslrii. 



(b) Ccratitis cosyra, Walker, List Dipt. Brit. Mus., iv, 1849, p. 1042. 



Described from the Congo. Loew and van Roeder have believed it to- 

 be a synonym of Cer. capilata $ > Fuller in 1900* has described under 

 this name the Pterandrus rubivorus, Coquillett, or the very destructive 

 " Natal fruit-fly." 



VIII. TpvIRHIthrum, gen. nov. 



The present genus is considerably different in general colour of body and in 

 pattern of wings from the three preceding genera, and shows more resemblance ta 

 the species of Carpophihoromyia y with which I united it, as 5th section of Geratitis,. 

 in 1913.f 



Prof. SilvestriJ has studied the larva of T. nigerrimum, and has found that it 

 shows some very important differences from the larvae of the species now placed 

 in the three preceding genera, chiefly in the antennae and in the anterior spiracles. 

 Thus the erection of a distinct genus for it and its allies seems to be justified. 

 Type : Ceratitis nigra, Graham, 1910. 



The rather numerous species of this characteristic Ethiopian genus may be 



distinguished as follows : — 



1(6). Last portion of fourth longitudinal vein crossed by an oblique dark band, 



the so-called middle band ; scutellum whitish or pale yellowish, with or 



without black spots. 



2(3). Wings with basal streaks and dots and with complete middle band ; thorax 



densely grey tomentose on disc, with shining black sides and with light 



yellowish humeri and pleural stripe . . . . . . . . lycii, Coq. 



3(2). Wing base not so patterned ; thorax quite shining black, even on disc, 

 humeri and pleurae ; scutellum whitish, with broad and confluent black 

 spots behind. 

 4(5). Middle band of wings complete ; legs entirely light yellowish 



nitidum, v. Rod. 

 5(4). Middle band interrupted in the first posterior cell ; femora black 



albonigrum, End. 



6(1). Middle band reduced to a short tooth, which does not reach the fourth 



longitudinal vein ; scutellum entirely black, or only with two very small 



yellow dots below at end. 



7(12). The short pubescence on back of thorax entirely black ; scutellum without 



yellow dots below on middle of hind border. 



* First Report of the Natal Government Entomologist, 1899-1900, p. 70, and Fourth 

 Report, 1903-1904, p. 19, pi. hi, fig. 1 and la (Cer. corym). [As mentioned above, this 

 species is P. rosa, Karsch, and not P. rubivorus, Coq. — Ed.] 



fBoll. Labor. Zool. Portici, vii, 1913, p. 22. 



% Boll. Labor. Zool. Portici, viii, November 1913, p. 3-164, fig. i-lxix. Of this very 

 important work there is an English edition published as Bull. No. 3 of the Division of 

 Entomology of Board of Agiic. Hawaii, Honolulu, February 1914. } 



