Species of Rhaphium.—Macherium. 351 
segmento anali rufo-castaneo: Coxe et pedes luteo-pallidi, tarsis apice 
fuscis: Ale dilute cineree nervuris fuscis. 
[Under the shady banks of rivulets in Holywood, also in the county 
Galway, October. ] 
Oss. This genus seems to come near Macropeza (which I suppose to 
have also naked antennz in both sexes); and again to have some relations 
with Ceratopogon. 
Fam. DoLicHorip#.* 
RHAPHIUM. Meig. IV, 32, CXXIV. 
1. macrocerum. Meig. 1V, 29. 3. 
| Both sexes near Holywood in Downshire. ] 
2. caliginosum. Meig. IV, 29. 4.? 
G The male ibid.] 
MACHERIUM. 
Antenne porrecte articulo 3tio subtus exciso supra apice valde elongato 
lineart, stylo terminal breviore biarticulato 
Oculi disjuncti. 
Ale parallele incumbentes. 
Frons lata, femine iatior. Antenne basi approximate, apice divaricate, 
capite longiores ; stylo terminali brevi, articulo 1° minuto ovato, 2e 
setaceo. Os crassum prominens; Haustellum carnosum labro membranaceo 
Janceolato utrinque setula suffulto: Mandibule sub labro extricate 
eoque breviores cultrate disjunct : Maxille lobo lato trigono acuminato 
mandibulis breviore haustelli basin utrinque amplectuntur: Lingua cornea 
rigida subuliformis: Labella pinguia discreta. (Tas. XV, fig. 11, 12.) 
Truncus subcylindricus. Alz parallelz incumbentes nervura 4t4 longitu- 
dinali simplici. Pedes mediocrescoxis haud insignitere longatis. Abdomen 
sub-cylindricum mediocre apice conicum, maris gracilius subtus oblique 
* I have noticed every species in my cabinet, for the purposes of a local list 
and to introduce some generic subdivisions. 
