AMERICAN COLEOPTERA. 51 



ONITIS, Fabr. 

 0. nicanor, Fabr. Ent. Sj-st. I. p. .>! ; Syst. Eleut. I. p. 29. 



The habitat of this insect has long been supposed to be North Amer- 

 ica ; recent investigations have shown it to be a West Indian insect 

 identical with Phanseus sulcafus Drury. The uni([ue specimen in the 

 cabinet of Leconte, and which had been in the possession of Ilentz 

 and Harris, has been ascertained to be a South African species, 0.(fos- 

 sor Boheman, fide Salle) fodiens? Boh. The determination of the 

 identity is due to A. Salle, from an examination of the specimen, (Ann. 

 Ent. Soc. France, 1869, p. 501, note). 



BIOLOGICAL NOTES ON DIPTER A.— (Article 2nd.) 



BY R. OSTEN SACKEN. 



I.— A new American ASPHONDYLIA. 



In a previous paper (Trans. Am. Ent. Soc. 18G9, p. 299,) I have 

 attempted to give a closer definition of the genus Aqjhondj/Ua, and 

 have described the first American species of the genus, Ai^phondi/h'a 

 moudrha, n. sp., producing a gall on SoUdago. In the same paper 

 I mentioned a second, as yet undescribed species, Aqdiondijlia heli- 

 anthi fjh/jidus, Walsh in litt. Recently, a third species has been 

 added to the list, producing a large flower-gall on Rudheclcia. It has 

 been communicated to me by Mr. Jacob Stauffer,iu Lancaster, Peuna., 

 together with drawings of the gall. 



Concerning the gall, Mr. Stauffer writes as follows : " On the 21st 

 of Au"-ust I met with very large galls, formed on the flower of Rud- 

 herkia triloba ? They were in one case nearly round, of the size of a 

 large apple ; the other was an aggregation of galls of various sizes, 

 forming a large excrescence." 



In a few days the fly was obtained in numbers, as well as a parasi- 

 tical hymenopteron, a C/u///7no/?jf, apparently identical with C.adccua, 

 O. S., which I had previously obtained from the gall of Diastrojdius 

 ncbidosus on blackberry bushes. 



Asphondylia rudbeckiae conspicua,n. sp.— About 0.18 of an inch long. Gray- 

 ish brown, Ihora.x: above oi)aque, grayish, with rows of bhickish hairs; abdomeu 

 brown, with paler hairs; halteres brown; feet almost uniformly brownish, 

 (paler when the hairs are rubbed oiT) ; wings rather dusky; the vein ending in 

 the apex of the wing is gently arched towards its tip. Ovipositor dark brown ; 

 (described from dry specimens). 



This Aqjhondi/lia shows the most important characters of its con- 



