issi.j 125 



of the under-surfaces of the posterior femora, and the lower half of the inner surface 

 of each posterior tibia is ciliated with longish soft hairs extending to the apex, which 

 commence by a tuft or loose pencil of hairs much longer than the others in the 

 middle of the limbs. This is a common species. 



H. Eoxdanii, sp. n. 



Mas., niger nitidus, abdomine oblongo-ovato fusco-cinereo non tessellato ; linea 



longitudinali lata nigra; ociili nudi sub-remoti ; alee sub-fuscce, venis longitadinali- 



bus 3 iio et 4> t0 versus apices paulo injlexis ; femora antica bidentata. 



Long. Z\ I'm. 



Head : eyes bare and separated by a wide black stripe, which occupies about 

 one-seventh of the width of the head ; arista pubescent at the base, which is 

 thickened. 



Thorax with Scutellum black, shining, and unstriped. 



Abdomen of a brownish-grey colour, without white reflections, and having a 

 widish black longitudinal stripe down the middle of the doi'sum, of an even width 

 over each segment, though slightly evanescent on the last ; genital appendages 

 forming a small cylindrical projection underneath. 



Wings short, of an uniform yellowish-brown colour ; internal transverse veins 

 3xactly opposite the ends of the axillary veins ; external transverse veins sinuous, 

 md slightly oblique ; third and fourth longitudinal veins slightly convergent at their 

 pxtremities, but less so than in H. dentipes. 



Calyptra rather small (less than in H. dentipes) and yellowish-brown. Halleres 

 ivith the stem tawny and the knob blackish-brown. 



Legs black ; anterior femora with two teeth on their under-sides near their 

 ipiccs, the inner of which is about twice as long as the outer; anterior tibiae nar- 

 owed at the base, slightly notched (less so than in II. dentipes), and without peculiar 

 ia ; middle femora bearded on their under-sides at the base with a tuft of black 

 lairs as in H. dentipes ; middle tibiae ciliated along the whole length of their outer 

 ides with a series of short curved hairs or bristles of even length, imbricated over 

 ach other, and having in addition three long strong bristles on their lower halves ; 

 here are also three or four shorter bristles on the posterior sides of the same limb ; 

 tosterior tibiae attenuated at the base, and without callosities at their inner ex- 

 remities, slightly curved, and ciliated along their outer surfaces with soft hairs, 

 rhich become gradually longer towards the apex ; there are also several long bristles 

 n the posterior surfaces at the lower ends. 

 The female is unknown to me. 



This species bears a very close resemblance to H. palcestrica, but differs in 

 eing smaller and darker in colour, in having shorter and browner wings ; a rather 

 ider frontal space between the eyes ; and a much wider longitudinal dorsal stripe 

 the abdomen. It appears to be rare, as I have only seen one specimen, which I 

 ,ptured near Bicester, Oxon, in June, 1880. 



H. FASCICTTLATA, Sp. 11. 

 Mas., niger nitidus pilosus ; abdomine ovato albo cinereo, linea longitudinali 

 gra, segmento secundo dilatata signato ; ocidi coherentes nudi; femora antica uni- 

 ntata ; femora postica subtus setis duabus contiguis medio instructa ; tibice posticus 

 ■ ulis tribus longis forma petiicilli rigidi ornatce. Long. 2 lin. 



