CERATOPOGON. 233 



or blackish-brown, occasionally partly tawny, partly blackish-brown. 

 Antennae blackish-brown ; joints from the first to the fifth or sixth 

 generally tawny at the base ; first joint large, cylindrical, almost oval, 

 contracted before the middle ; second and' six following joints elongate- 

 oval, somewhat straitened beyond the middle ; ninth and four following- 

 elongated, elliptical. Thorax bluish-ash grey, mouse-grey, or whitish- 

 grey, with three coffee-brown stripes. Scutellum grey, sometimes more 

 or less tawny. Pectus grey or blackish-grey, glistening-hoary. Meta- 

 thorax blackish-brown. Wings limpid, whitish in some aspects ; veins 

 pale, brown towards the costa. Halteres white. Abdomen whitish-grey 

 or yellotcish-white, first segment wholly, and the following at the base, 

 blackish-brown ; last segment blackish-brown, with a white hind border. 

 Legs tawny ; femora and tibiae more or less blackish-brown towards 

 the tips ; joints of the tarsi with black tips ; plants with five or six 

 pair of spines ; fore femora and hind femora somewhat incrassated ; 

 fore femora with twenty-one to thirty spines ; middle femora with seven 

 to twelve spines ; hind femora with eight to sixteen spines. 

 Not common. (E.) 



66. femoratus, F. S. A. 45. 35 (1805); Latr.; Meig.; Stasg.; 

 Mcq. ; Ks. ; Zett. ; Winn. ! Linn. Ent. vi. pi. 8. f. 64. morio, F. ; 

 Gmel.; Meig.; Mcq.; Stseg.; Zett. ater, Meig.; Rs. rujitarsis, Meig. 

 armatus, Meig. Mas et Foem. niger, nitens, alis limpidis aut fusces- 

 centibus, venis albidis aut nigro-fuscis, halteribus albis, pedibus plus 

 minusve fulvo variis, femoribus tibiisque posticis longiusculis, illis in- 

 crassatis et spinosis, tarsis albidis aut fulvis articulis apice obscuriori- 

 bus ; Mas, antennarum pluma apice albo-nitente. Long. 1-li ; alar. 

 2-2 1 lin. 



Male and Fern. Black, shining. Wings limpid-white, occasionally 

 more or less brownish ; veins whitish or brown. Halteres white. Legs 

 often more or less tawny ; tarsi whitish or tawny ; the joints darker 

 towards their tips ; hind femora and hind tibia? rather long, the former 

 incrassated, thickly spinose beneath, slightly spinose above. Male. 

 Plumes of the antennae glistening -white towards their tips. Claws 

 slender, of equal length on all the tarsi. Fern. Claws of the anterior 

 tarsi of equal length. Hind tarsi with one claw four times the length 

 of the other. 



Wirmertz describes twelve varieties of this species. Generally 

 distributed. (E. S. I.) 



67. inflatus, Winn.! Linn. Ent. vi. 71. 65. pi. 8. f. 65 (1852). 

 Mas, ater, nitidus, fronte nigro-obscuro, facie palpisque nigro-fuscis, 

 antennarum plumis apice albidis, alis albidis, venis pallidis apud cos- 

 tarn fuscescentibus, halteribus albis, abdominis segmentis primo, secundo 

 ter Hague apiceque albis, pedibus albis, femoribus, tibiis tarsisque apice 

 nigris. Long. -- ; alar. 1-| lin. 



Male. Front dull black. Face and palpi blackish-brown. Antennae 

 and their plumes blackish-brown, the latter with glistening-white tips. 



VOL. IV. 2 H 



