DIPTERA. 319 



moderately thickened. Wings lightly infuscated distally : first posterior cell closed before the margin. 

 Length 15 millim. 



Rah. Mexico, Atoyac in Vera Cruz {Schumann). 



Two specimens. This species appears to be allied to Nusa (Laphria) formidolosa, 

 Walk., but, judging from the description, it is less densely pilose, lighter coloured, 

 and much smaller. 



2. Nusa sexpunctata, sp. n. (Tab. VI. fig. 4, s .) 



c? . Black. Front and face thickly white- or brownish-white-pollinose, the latter with a shining black spot 

 in the middle. Third antennal joint considerably dilated, not longer than the first two joints together. 

 The rather prominent facial gibbosity is clothed in the middle with long black, on the sides with 

 white, bristles. Occiput greyish-pollinose, and with white hair. Thorax greyish-pollinose (the pollen 

 modifying the ground-colour to some extent) ; hair of the mesonotum sparse, black, that of the pleurae 

 white ; the broad median stripe and the lateral spots of the mesonotum indistinctly indicated. Abdomen 

 shining black, the posterior part of the fifth and the following segments shining red ; a small white- 

 pollinose spot near each posterior angle of the second, third, and fourth segments. Legs with long, 

 soft, white hair ; ail the femora thickened, the hind pair especially so. Wings tinged with brownish ; 

 a brownish spot sometimes present near the middle ; first and fourth posterior cells closed at some distance 

 before the margin of the wing. Length 8-9 millim. 



Had. Mexico, Amula in Guerrero (H. H. Smith). 



Two specimens. This species must be allied to Lampria cinerea, Bell., but can 

 hardly be the same, from the fact that the latter is figured as having the first posterior 

 cell wide open, and the extent of red on the abdomen is less. Moreover, the size is 

 very much greater. 



MALLOPHGRA (p. 189). 



1. Mallophora freycineti. 



Asilus infernalis, Wiedem. Aussereur. zweifl. Ins. i. p. 475 \ — '~ ^ 

 Mallophora freycineti, Macq. Dipt. Exot. i. 2, p. 85 2 ; Suppl. i. p. 77 \ 

 Mallophora infernalis (Bellardi), O. Sack, antea, p. 189*. 



To the localities given add : — Mexico, Rio Papagio and Acapulco in Guerrero 

 (R. R. Smith).—CoLOMBiA 2 3 ; Brazil K 



Two specimens from Guerrero, one of which agrees with an example from Brazil 

 that I identify as M. freycineti; the other has yellow pile on the scutellum. 

 My male from Brazil has some white hairs on the hind tarsi ; the female of the 

 Mexican insect has some white hair on the same tarsi, differing in this respect 

 from M. craverii. 



2 (a). Mallophora aeaca, sp. n. 



S Allied to M. freycineti, M. pinto, &c. Large, robust, black, with black and yellow hair. Hair of the 

 upper part of the occiput, of the front, the bristles of the face above the oral margin, and a short tuft 

 below the eyes on the occipital orbits, some hair on the front part of the mesonotum, the scutellum 



/ 



