42 ENTOMOLOGICAL NEWS | XXxii. "21 



Mydaea concinna. 



A female from Xucumanatlan, Guerrero. This species has a pair of 

 strong cruciate interfrontal bristles, the lower supraorbital directed 

 forward, prealar long, anterior intra-alar present, prosternum and 

 pteropleura hairy, metathoracic spiracle with some black hairs along 

 posterior margin, hypopleura bare, basal abdominal sternite hairy, 

 first and third wing-veins with setulae on greater part of their lengths 

 above, first bare below, third setulose at base below, hind tibial calcar 

 present, third vein not curved forward at apex. 



This species differs from Ariciclla Malloch in the setulose 

 wing-veins, bare lateral area proximad of base of scutellum, 

 presence of hind tibial calcar and prealar, as well as in several 

 other characters. 



I propose for the reception of the species the new genus 

 SMITHOMYIA, with the combination of characters above men- 

 tioned. 



Mydaea pansa G. T. 



A female specimen identified by van der Wulp as pansa is a 

 true Mydaea, separable from any known to me by its testa- 

 ceous yellow color. 



Pogonomyia aterrima. 



A true Pogonomyia closely allied to minor Malloch. I have 

 one female before me from Ciudad, Mexico. This specimen 

 is slightly larger than paratypes of minor, has the fore tibia 

 with one strong and one very weak posteroventral bristle, the 

 fore tarsi more slender, the hind tibia with three anterodorsal 

 and posterodorsal bristles and the wings darker than in minor. 



Limnophora socia. 



One female from Omilteme, Guerrero. This species closely 

 resembles Hclina obscurinervis (Stein") and H. poeciloptera 

 Malloch, having the same thoracic and hind tibial bristling, 

 but the palpi, second antennal segment and base of third are 

 yellow, and the apex of first vein and base of third are dark- 

 ened. The arista is pubescent. 



Belongs to Hclina R.-D. 



Spilogaster signatipennis. 



A male from Guerrero. Belongs to the same group as the 

 preceding species, but the hind femur has long fine bristles 

 on the entire length of the anteroventral surface and shorter 



