1891.) 127 



The males and females closely resemble each other. 



1 (4) Wings with the alternate veins setigerous. 



2 (3) Antennae nigrescent ... 1. crassioornis, Mgn. 



3 (2) Antennae rufous 2. pilipeniiis,¥\r\. 



4 (1) Wings with the third long vein only setigerous. 



5 (6) Legs testaceous 3. bicolor, Mgn. 



6 (5) Legs nigrescent. 



7 (8) Second joint of arista short 4. cognafa, Schn. 



8 (7) Second joint of arista long 5. minutiss ima, Zett. 



T. CRA.SSICOENIS, Mgn. 

 Antennae black, with third joint long and thick, the basal joints are sometimes 

 subrufous ; palpi yellow ; thorax grey and unstriped ; scutellum grey ; abdomen 

 black, segments encircled on the front edges with a white ring or band, which is 

 wider in the males than the females ; legs nigrescent ; wings with the first, third, 

 and fifth veins setigerous. Not rare. 



T. PILIPENNIS, Fin. 

 This species is very similar to the last, but has the antennae smaller and rufous, 

 the scutellum is also red at the apex, and the legs piceous ; the wings have the bases 

 yellow, and have the veins ciliated, as in T. crassicornis. Rare ; Mr. Bignell sent 

 me a specimen in 1882, which he had bred from a Tortrix. 



T. BICOLOR, Mgn. 

 Antennae rufous, third joint sometimes partly grey or black ; palpi yellow ; 

 thorax grey and unstriped, with the shoulder points luteous ; scutellum yellow ; 

 abdomen rufous, with a narrow pale band round the base of the segments ; legs 

 testaceous ; wings with the third longitudinal vein only setigerous, the spines 

 extending from the root of the vein to a little beyond the inner cross vein. Not; 

 rare ; Mr. Bignell sent me several in 1882, bred from Bomhyx quercus. 



T. coGNATA, Schn. 



This is rather an aberrant species, for the second joint of the arista is short and 

 indistinct, like the first ; the wings also have only three or four setae at the base of 

 the third long vein. In other points, however, it resembles the foregoing species ; 

 the antennae have the third joint large, thick, and black, with the basal joints rufous ; 

 palpi yellow ; thorax grey, with four narrow black stripes on the front ; abdomen 

 black, with the second and third rings encircled with a white band, legs black. Rare. 



T. MINTJTISSIMA, Ztt. 

 This little species, only two or three mm. in length, has the second joint of the 

 arista much elongated, it being about two-thirds of the length of the third joint, 

 with which it is geniculated ; the antennae have the third joint thickened ; the 

 palpi are rufous or piceous ; the thorax is cinereous, with the shoulders pale, and the 

 dorsum marked in front with two narrow stripes ; the abdomen is black, with a 

 narrow white band round the front margins of the segments ; the legs are black ; 

 the wings have the apical cross veins pale and rather indistinct, bluntly angular at 

 the base, and joining the costa exactly at the apex of the wing ; the veins are 



