10 PROCEEDINGS OF THE NATIOISTAl. MUSEUM vou 73 



setulae at apices of ventral surfaces of the hind tibiae. I have not 

 seen the female of any of the three species. 



I have seen no species of the genus from America, so the genus 

 should be deleted from our list. 



PSEUDOCALLIOPE, new genus 



This genus has the face evenly convex, without a transverse depres- 

 sion near middle; the frons almost uniformly glossy; the arista 

 pubescent; thorax with the anterior one of the three j^airs of post- 

 sutural dorsocentrals reduced in size, and a short but distinct intra- 

 alar present. 



Genotype. — Lauxania flaviceps Loew. 



The presence of the intra-alar bristle and lack of a transverse im- 

 pression of face, and a ventral patch of setulae on hind tibia, distin- 

 guish the genus from Halidayella to which it runs in Hendel's key 

 to the genera of the world. 



The species described as Minettia verticalis in this paper resembles 

 flaviceps in some respects, but the face and frons are not glossy, and 

 the former is not so noticeably convex. 



Genus MINETTIA Robineau-Desvoidy 



Minettia Robineiait-Desvoidy, Myodaires, 1830, p. 646. 



I described several species of this genus in the paper already 

 referred to but gave no synoptic key. Doctor Hendel also described 

 a few species in his paper. Below I am presenting a key to the 

 species which I have been able to identify, but there are no doubt 

 man}' more which are unknown to me, so that care must be exercised 

 in using it for identifications. I omit the North American species 

 which do not occur south of the United States so far as I know. 



I have included jSapromi/sa schwarzi Malloch in the key because 

 it may be confused with this genus by those not well versed in the 

 generic distinctions. 



KEY TO THE SPECIES OF MINETTIA 



1. Face yellow, with at least a black central spot on lower margin ; scutellum 



with a black spot at base of each of the apical bristles, which may some- 

 times be continued forward toward base of scutellum, forming two dark 



vittae 2 



Face either black or yellow, if yellow and with a black central spot the 

 scutellum is without black apical si)ots 8 



2. Wings with at most the cross veins slightly clouded, no other markings 



present 3 



Wings with quite conspicuous dark markings in addition to any on cross 

 veins 6 



3. Mesopleura and sternopleura each with a small round black spot ; antennae 



entirely yellow slossonae Coquillett. 



Pleura with, or without, two partial blackish vittae, no round black spot 

 an the mesopleura 4 



