24 MISCELLANEOUS "RESULTS OF WORK OF BUREAU IX. 



pimple results from the punctures, the eruptions, in appearance, 



Fig. 3. — Ceratopogon guttipennis: a, adult; b, head of same; c, larva; d, h;^ad of sam ; e, pupa. Ali 



greatly pnlargpd (original). 



being very much like the vesicles caused by contact with poison ivy. 

 The adult is a minute fly 1 mm. in length, appearing })lackisli to the 

 naked eye, but under a lens seen to be of a deep gray hue, with mot- 

 tied wings (fig. 3). Its mouth parts are 

 illustrated in figure 4. The species was 

 described by Mr. D. W. Coquillett," to 

 whose paper the reader is referred for 

 descriptions of many species of this genus. 

 The Virginia punkie is the name which the 

 writer would suggest for this particular 

 species, as it may possibly be distinct 

 from the one occurring in Maine which 

 the Indians called "no-see-um," and which 

 is popularly known as "punkie," the 

 latter name being corrupted according 

 to locality. The flies of this species are 

 very troublesome to man and domestic 

 animals. If milking is put oft" later than usual in the morning, 

 they drive the cows almost frantic by their persistence, and while 

 that process is going on the operator, having both hands engaged, 

 is at their mercy. 



THE LARVA. 



Larvse were found in the very dirty water in holes in the middle of 

 poplar stumps, in company with larvae of mosquitoes (Anopheles har- 



FiG. 4. — Ceratopogon guttipennis: 

 Mouth parts of adult. Highly 

 magnified (original). 



aProc, U. S. Nat. Mus., Vol, XXIII, No. J225, p. 603, 1901. 



