110 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 115 



13. Legs yellow except for slightly darkened tips of femora and tibiae; wing 



with two cross bands and brown apex containing several hyaline spots. 



A. discolor (Coquillett) 

 Legs with subapical femoral band and sub-basal tibial band 14 



14. Wing with irregular cross band near middle extending completely across 



wing 15 



Wing with central band only behind anal vein; second band near apical 

 one- third extending across wing; tarsal beard 6 times tarsal diameter. 



A. euniorpha, new species 



15. Apical one-third of wing brown, marked with several hyaline spots; fore 



tarsus sparsely bearded A. dyari (Coquillett) 



Apical one-third of wing brown, without hyaline spots; no beard. 



A. johnsoni (Coquillett) 



Tanypus carinatus, new species 



Figures 3e-4 



Protenthes punctipennis (Meigen) Malloch (in part), Bull. Illinois State Lab. Nat. 

 Hist., vol. 10, p. 383, 1915, dark variety, misidentification. 



Holotype male: USNM 65515, 3 miles south of Woodside, San 

 Mateo Co., Apr. 20, 1960, G. 



Postocular bristles in single row reaching point medial to dorsal 

 eye extensions. Palpi normal, ratio 8:15:20:33. About 20 clypeal 

 bristles. Antennal ratio 2.31. 



Head, thorax, and abdomen blackish-brown, scutellum and pleura 

 somewhat lighter. Pronotum produced anteriorly, considerably wider 

 at apex than at middle; with 17 fine lateral bristles. Mesonotum 

 with tubercle low, inconspicuous and concolorus with remainder of 

 meso thorax; tubercle beset with numerous, rather coarse hairs. Haltere 

 knob apex infuscate yellow, most of knob blackish-brown. Supra-alar 

 bristles 2, 1 long, 1 short; prealar bristles 9; dorsolateral bristles in 

 single row to scutellmn; anterolateral bristles 2; scutellar bristles 

 about 20, 10 large ones in posterior transverse row, anteriorly about 

 10 fine ones in strewn pattern. 



Tarsal hairs of fore legs 2 times diameter of tarsus. Femora largely 

 dark with preapical pale annulus; tibia with broad basal and narrow 

 apical black band, remainder of tibia infuscate; tarsal segments 1, 2, 

 and 3 infuscate with black apices, segments 4 and 5 completely dark. 

 Fore tibia with single spur with 2 side spines; spur shorter than 

 diameter of tibial apex; ratio 45:55. Middle tibia with 2 spurs with 

 ratio of 18:20; each with 2 side spines. Hind tibia with spurs 20:25; 

 longer with 3 side spines; comb of 8 short heavy spines. 



Leg proportions: 



