

THE CANAUIAN ENTOMOKOOIS'I 



Ni:\V 'I'I1'UI,I1).4-: (DIl'IKRA). 



IJY CHAKl.KS V. Al.KXANHKK, IIHACA, N. Y. 



The following cranc-tlies are believed to be new to science : 

 Adelphomyia miiiuta, sp. nov. 



Antenna;, first segment light reddisli-yellow, remainder light brown^ 

 with a thick, white ])ubescence ; rostrum reddish-brown, i)alpi brown ; 

 front and vertex reddish-yellow, thinly grayish-priiinose ; a row of pale 

 yellow hairs along the inner margin of the eye ; occiput reddish-yellow. 

 IVonotuni yellow ; mesonotum, prwscutum brownish-yellow, with a thin 

 while bloom, a row of long yellow hairs on either side of the median line ; 

 scutum and scutellum pale yellow ; metanotum almost white. Abdomen, 

 yellow, with a white pruinosity on the caudal margin and with long scat- 

 tered yellow hairs ; ovipositor brownish yellow. Halteres yellow, knob 

 barely darker. Legs pale yellow, darker on the tibias and tarsi. Wings 

 hyaline, stigma indistinct, yellowish ; veins pale yellow, C, R and Cii 

 somewhat brownish. 



Subcosta quite long, extending almost to the anterior margi:i of cell 

 R3; Sc^ far distant from the tip of SCp so that Sc, is four times the length 

 of Scj. Radius 1 jng, cross-vein r far back from tip, about four times its 

 length and near to the anterior end of cell Rj. A'.f moderately long, 

 arcuated at origin, about equal to R,, ; R^,., from one to one and one-half 

 the length of the basal deflection of Cu, ; basal deflection of R,^., about 

 one-half of cross-vein ;-;//; r-in usually about as long as the basal deflec- 

 tion of Cu,. Petiole of cell .M^ (M^) usually long, two-thirds the radial 

 sector. Cuj usually about twice the basal deflection of Cu,. Basal' 

 deflection of Cu, under the middle of the discal cell. In most specimens 

 the cross-vein m is much reduced, or even lacking, due to the great length 

 of the second deflection of M.,. 



Length, J, 3.3-4.4 mm.; average, 3 6 mm.; wing, 41-42 nun. 



Length, 9, 45-49 mm.; average, 47 mm.; wing, 4.6-4.7 mm. 



Type. — (J, Coy Glen. Ithaca, N. Y., May 21, '11. 



Co-types. — 12 c? s, 3 9s; same time and place as the type. 



This tiny species is quite similar in venation to the species which I 

 have determined, provisionally, at least, as Adelphomyia sent/is Hal. In 

 that species cross-vein ?n is always present in the scores of specimens 

 examined. 



The two species are of nearly the same size, with minut,i averaging 

 smaller. Although the distal cells of the wings of senilis are notably 



A,.|,'iist, 1911 



