AMERICAN DIPTERA. 33 



extending (juite across on the third segment. The shorter antennae, 

 white uiystax, and golden pubescence of the thorax will enable it to be 

 readily recognized. 



65. Pogonosoina dor$>iat.a Say, Ainer. Ent. i, tab. vi ; Compl. Wr. i ; Wied. 

 Auss. Z\v. i, 505, 12 (Laphria). 



Three specimens from Washington Territory agree throughout with 

 the descriptions. T have no specimen for comparison. 



(')(•.. Andrenosoina fulvicauda Say, J. Aoad. Phil, iii, 5.3; tab. vi ; 

 Compl. Wr. i, 12 (Lapliria), Wied. Auss. Zwei. Ins. i, 517, 'M, {L. pyrrhacra). 



A single spacimon from Northern California agrees perfectly with Say's 

 description, and I believe it to be the same. 



In addiUon to the species enumerated in the foregoing pages the fol- 

 lowing nt'w spocies have been described, since the publication of Osten 

 Sacken's Catalogue, by J. Bigot in the Annales Soc. Entom. France, 1878. 



Fr(nn the United States: 



Dasypo^^Oil biliiieatlim {Callinicus calcaneum Lw.) 1. c. 411. 

 I>. qiiadriiiotatuin 1. c. 412.— California. 

 Seilopojuroii (Cheilopoc/on) rubiginosiiin, 1. c. 419, N. America. — "Detri- 



tum et mutilatum, * * partie anterieur de la tete, extremite de I'abdo- 



men et pieds anterieurs, nianquent." 

 The fragment left might belong to several genera. 



Stenopogon albibasis, 1. e. 422. — California. 

 Aiiisopogoii vespoidesi, 1. c. 43.3.— California. 

 Holopogon iiitidiventri!^, 1. c. 437.— California. 

 Lieptogastcr f^oapularis, 1. c. 444.— California. 

 Laphria corallogaster, 1. c. 227.— N. Am., (Lamprin'!) 



From Mexico : 



Iflicrostyliini fulvigaster, 1. c. 410. 

 Stenopogoii riiscolimbatuni, 1. c. 421. 

 Cci*atiirgii$« geniculatiis, 1. c. 443. (Antennae wanting.) 

 C'orinaiisis eupotla, 1. e. 234. 

 Aphcstia nigra, 1. c. 235. 

 Atoinosia ^ioror, 1. c. 236. 

 C'erotaiiiia nigra and dnbia, 1. c 238. 

 PogonoKoma araciinoides. 1. c. 239- 



i\AUSlGAKTIi:R n. gen, 



Moderately large species, black in ground color but thickly pollinose, 

 with shining, numerous, small, black, punctulatc spots. Head spheroidal, 

 broader than the thorax. Eyes bare. Front narrowed above, evenly 

 archod to the antennae, which are situated a little above the middle of 

 the head in profile. Face narrowed below, concave on upper part below 

 the antennae, the tubercle near the iiiiildic large, obtuse, below it much 



TUANS AMKU. K.NT. SOP. XI. ( '.I ) DKCK.MBKR, 1883. 



