Parastenophora. 1J9 



sometimes thickened, especially in female; four tbin veins present, 

 all reaching the margin. 



Tlie developmental stages do not seem to be known; Bezzi has 

 (Arch. Zool. exper. et gen. 5, VIII, 1912, 57) described and figured 

 larva and pupa of a species determined as P. aptina; tbe stages are 

 described as quite of common shape for Pliorid larvæ and pupæ, 

 and with four small tubercles on eacli segment; the above mentioned 

 author states, however, later on (Atti del. Soc. Ital. di Se. Nat. LUI, 

 1914, 215) that the larvæ and pupæ belonged to A. rufipes. 



The species occur on bushes and in low herbage in more or less 

 humid piaces in woods, some are especially found in autumn; P. mi- 

 nuta has been taken on Agarici. 



As remarked by Schmitz (Jaarb. Natuurh. Genootsch. Limburg 

 1917, 194) the genus is very nearly related to the following genus 

 Triipheoneura, and in some cases the bordering of the genus may be 

 difficult. I quite follow Schmitz in the sense in which he takes te 

 genus, and consequently I exclude all species in which the seventh 

 vein does not reach the margin distinctly, and all species with more 

 than two bristles on scutellum. The genus was established by Malloch 

 under the name Stenophora in 1909, but in 1912 he altered it to 

 Pseudostenophora on account of preoccupation; in 1909 he had created 

 the genus Woodia for Phora gracilis Wood, this name he in 1910 

 altered to Parastenophora^ likewise because it was preoccupied; this 

 latter genus was distinguished be having only one bristle at the base 

 of middle tibiæ, or none at all, and no bristle on the middle of hind 

 tibiæ. Now Pater Schmitz has kindly communicated to me that he 

 has seen a specimen of gracilis with bristles on the tibiæ quite as in 

 Pseudostenophora so that the species is congeneric with this genus, 

 and as Parastenophora has priority the genus must bear this name. 

 A paper from Schmitz, dealing with the question, has appeared in 

 Zool. Mededeel. 'sRijks Mus. Leiden, VI, 1921, 56. 



Of the genus 14 species are known from the palæarctic region; 

 3 occur in Denmark. 



Tahle of Species. 



1. Front tibiæ without dorsal bristle, upper bristle on hind 



tibiæ at about the upper fourth; antennæ in male large ... 1. minuta. 

 — Front tibiæ with a dorsal bristle, upper bristle on hind 



tibiæ near the middle; antennæ in male not large 2. 



2. Halteres with the knob more or less dark; antennæ reddish; 



