160 DOLICHOPID^E. 



yellowish-white, with a broad black border. Legs, and the tip of the 

 fore coxse, tawny yellow ; hind tibia black at the end to about a fourth 

 of their length ; tarsi black., anterior metatarsi yellowish. Posterior 

 femora with three to jive spines in a row between the middle and the 

 tip. All the femora in the male fringed beneath in the outer half wi^ 

 blackish hairs, longest on the hind pair. One of the largest species, 

 and very stout. 



Abundant on the rank herbage about drains. (E. S. I.) 

 06s. Musca ungulata, L. (fn. i. 1053), originally denoted a 

 different insect (see Hydrophorus binotatus) ; and that trivial 

 name has been since applied so variously that it seems best to 

 drop it entirely. 



10. brevipennis, Mg. iv. 89. 27 (1824) ; Stn. ; Hal. ; Stg. ; Ztt. 

 -plumitarsis var., Fin. ungulatus, L.? s. n. xii. JEneo-mridis, an- 

 tennis nigris, pedibus luteis, posticorum tibiis apice tarsisque nigris ; 

 Mas. tarsis anticis articulis duobus extremis compressis atris, quinto 

 latissimo, femoribus posticis pallido-ciliatis, alis lineola costali nigra, 

 hypostomate ochraceo ; Fcem. hypostomate cano. Long. 2^ ; alar. 

 4f lin. 



Brassy-green. Face ochre-yellow in male, whitish in female. Wings 

 hyaline, with a black costal swelling, in male ; smoky hyaline in female. 

 LamellaB dingy yellow, with a very broad blackish border. Legs, and 

 tip of the fore coxaB, tawny yellow ; trochanters brownish ; hind tibia 

 black at the end, to a fourth of their length in the female, in the male 

 to a full third ; tarsi black first three joints of fore pair, and meta- 

 tarsus of the middle pair, yellowish. In the male the hind femora are 

 fringed with pale yellow hairs, the fore tarsi are slender, half as long 

 again as the tibia, the fourth and fifth joints deep black, short, com- 

 pressed, and ciliated on the upper edge, the ffth much the broadest, 



Common in swampy spots. (E. S. I.) 



11. equestris, Hal. z. j. v. 359. 4 (1831). cinctus, Stg. 

 fferi, Ztt. Mneo-mridis, hypostomate albo, antennis nigris, pedibus flams, 

 posticorum tibiis apice tarsisque nigris; Mas. tarsis anticis articulo 

 ultimo compresso atro, femoribus posticis nigro-ciliatis, alis lineola costali 

 nigra. Long. 2 ; alar. 4 lin. 



Brassy-green. Face white. Wings hyaline, with a slight black 

 costal swelling in the male. Black edge of lamellae narrow. Legs 

 and fore coxse yellow, the latter at the base blackish-grey. Hind tibia 

 at the tip and tarsi black, anterior metatarsi yellowish. In the male 

 the fore tarsus is considerably longer than the tibia, with the inter- 

 mediate joints brownish, the fifth joint shortest, compressed, deep black, 

 (much smaller in- proportion than in the preceding species;) the hind 

 femora are fringed with black hairs. 



Rare. In Mr. Haliday's collection. (I.) 



