CALOBATA. 3738 
Wiedemann (Aussereur. zweifl. Ins. ii. p. 536) and Schiner (Dipt. Novara Reise, p. 553) 
are not perfectly applicable to the Mexican specimens. 
11. Calobata annulata. (Tab. IX. fig. 27, ¢.) 
Musca annulata, Faby. Ent. Syst. iv. p. 338. 111°. 
Calobata annulata, Fabr. Syst. Antl. p. 262. 7°; Wiedem. Aussereur. zweifl. Ins. ii. p. 534. 5°; 
van der Wulp, Tijdschr. voor Ent. xxvi. p. 49. 4%. 
Hab. Mexico, Teapa in Tabasco (H. H. Smith); Panama, Bugaba (Champion).— 
Souta America, Cayenne! 23 and Surinam ¢. 
Several specimens of both sexes. They vary in the coloration of the head: in some 
examples it is very obscure and almost wholly black; in others it is brownish-red 
(Wiedemann says “ ocherbraunlich ”), the front with a cordiform velvety-black median 
spot and bluish-black lateral stripes behind. The antenne are more or less obscure in 
colour; the arista is bare. The legs are black, but the hind femora are brownish 
towards the tip, and the hind tibie still clearer, almost brownish-yellow; front tarsi 
wholly white; intermediate and hind femora with a white ring beyond the middle, the 
hind femora also white at the base. Halteres black. The blackish cross-bands on the 
wings are not always fully developed, the first and third being often rudimentary 
and represented by smal] spots only between the veins. The venation is like that of 
C. lunulata, except that the first posterior cell is not closed. 
12. Calobata conveniens, sp. n., 2. 
Bluish-black; head and antenna rufous; front tarsi, base of all the femora, and a ring on the middle and 
hind femora, white; wings with three blackish cross-bands, the first and third rudimentary. 
Length 8°5 millim. 
Closely allied to C. annulata, but differing from it in the rufous colour of the head and antenne, and in having 
the fore and middle femora white at the base, as well as the hind ones. The orbits of the eyes have 
silvery-white reflections; the arista is not bare, but short-plumose. The blackish cross-bands of the 
wings are as imperfect as in C. annulata ; the venation is quite similar, the first posterior cell not 
being closed. 
Hab. Panama, Bugaba (Champion). 
Four males and one female. 
13. Calobata ichneumonea. (Tab. IX. fig. 28, ¢.) 
Calobata ichneumonea, Brauer, Sitz.-Berichte Akad. Wissensch. Wien, xci. p. 388, tab. fig. 4 (1885). 
Grallomyia caloptera, Bigot, Ann. Soc. Ent. Fr. 1886, p. 381°. 
Calobata caloptera, Gig].-Tos, Mem. R. Accad. Scienze di Torino, ser. 2, xlv. (sep.) p. 63%. 
Hab. Mexico123, Xucumanatlan and Sierra de las Aguas Escondidas, both in 
Guerrero (H. H. Smith); GuaTemata, San Gerénimo (Champion). 
Several specimens of both sexes. Professor Brauer’s description and figure leave no 
