178 ENTOMOLOGICAL SOCIETY 



the mesosternum is finely punctate near the insertion of middle coxae ; 

 scutellum bituberculous posteriorly; wings fuscous, with the apical one- 

 fourth, basal two-thirds of marginal cell and a spot in the discoidal region, 

 hyaline; abdomen with a long petiole bisulcate above; body of abdomen 

 oblong, subcompressed, obtusely rounded behind, not pointed, the three 

 short apical segments smooth, no! punctate, but fimbriate with whitish 

 hair. 



Hab. Santarem. 



Described from i $>, collected by Mr. Herbert H. Smith, in 

 month of February. 



L-iopteron rufum sp. n. 



9 Length 6 mm. Rufous, clothed with sparse, glittering white hair ; 

 head with a sharp carina between antennae, the face finely punctate; 

 antennae 13-jointed, subclavate, about as long as the head and thorax united, 

 blackish toward tips, the first flagellar joint two-thirds the length of the 

 second, the latter the longest joint except the large oblong terminal 

 joint; third flagellar. joint a little longer than the first, the joints beyond 

 imperceptibly shortening and broadening to the last joint, the last joint 

 is oblong and twice as long as the penultimate ; thorax coarsely sculptured, 

 the scutellum truncate posteriorly, the hind angles subtuberculous ; 

 wings hyaline, with a broad fuscous band across their disk, extending 

 from basal vein to beyond apex of the marginal cell, but the basal half of 

 the marginal cell (or a little more) and a large spot on the hind margin 

 of wing directly opposite the marginal cell are hyaline; abdomen shaped 

 as in L. tarsale. 



(5\ Length 4.5 mm. Agrees with 9 > except in the usual sexual differ 

 ences and in having the disk of the mesonotum dusky : antennas i4-jointed, 

 longer than the body, black, with only the two basal joints rufous, the 

 flagellum only slightly thickened at apex, the first joint less than two- 

 thirds the length of the second, the following joints very gradually, 

 decreasing in length to the last; the last three abdominal joints are fimbriate 

 as in 9? but all are punctate toward apex; otherwise the abdomen is 

 smooth and highly polished. 



Hab. Chapada. 



Described from i cT, i 9, collected by Mr. Herbert H. Smith 

 in November. 



Mr. Schwarz presented certain notes on an insect pest, 

 Hippelates pusio, in the Southern States. This is a small fly 

 of the family Oscinidas, which, during the summer months, 

 swarms in great numbers in many of our Southern States, almost 



