102 THE CANADIAN ENTOMOLOGIST. 



Forster's characters, says the antennae are 8-jointed ; but an examination 

 of the figure of the type ( Triihogramma evaneseens, 1. c, p. 114) shows 

 that one of the joints counted is the "annulus " above the scape, which 

 •I do not consider to be a true joint, and that what I have indicated as the 

 apical joint, in agreement with Westwood, is represented in that figure as 

 three coalesced joints. I have proposed the generic name of Pentarthrum 

 for minuta in MS. now in Mr. Scudders hands, but until the allied genera 

 are better characterized than at present, it is best to use the old genus 

 Trichos ramnia. 



v & 



2. Cirrospilus esurus, n. sp. — Length 1.5 mm. Dull black; knees, 

 tibia? and tarsi yellowish, the posterior tibiae sometimes dusky. Eyes with 

 scattered, short bristles. Antennas of the £ o-jointed, with the joints of 

 the flagellum subequal and beset with bristles, the ninth joint small. 

 Antenna; of the °. 8-jointed, the fourth and fifth shorter than the second 

 and third, the three apical joints forming a club. Thorax above micro- 

 scopically punctate ; parapsides distinct and elevated ; scutellum with a 

 longitudinal, impressed line on each side. Wings hyaline, pubescent, but 

 the cilia short ; base of ulna uneven ; radius not developed. Abdomen 

 short and sessile, ovate. Described from numerous specimens reared 

 from the pupa of Alctia argillacea. 



This species shows relationship^with the genus Tetrastichus Halliday, 

 and may ultimately be referred there. For the present I prefer to place 

 it in the older genus. 



3. Tachina aletle, n. sp. — Length 8 mm. Black ; head golden, 

 facial depression silvery, space between the eyes and the frontal stripe 

 about equal to the breadth of the stripe, bristles of the head black, the 

 pubescence behind and beneath the eyes white ; antenna; blackish, palpi 

 testaceous. Eyes at a moderate distance apart, thinly pubescent ; front 

 moderately prominent ; third joint of the antenna; three or four times the 

 length of the second joint. Thorax and the second and following abdo- 

 minal joints more or less ashy, the thorax with four or five longitudinal 

 black stripes. Wings subhyaline. Legs black, with a piceous tinge ; 

 tarsal cushions yellowish. Scutellum and the sides of the first, second 

 and third abdominal joints sometimes tinged with 'reddish-brown. No 

 strong bristles on the first and second abdominal joints above. 



Described from two specimens, reared in November, 1878, from the 

 pupa of Aletia argi/lacea. 



