58 MOSQUITOES OF NORTH AMERICA 



18. Subventral tuft of anal segment short, multiple 



W. sororcula Dyar & Knab (p. 69) 

 Subventral tuft of anal segment long, triple. W. vanduzeei Dyar & Knab (p. 67) 



19. Tufts of the air-tube mostly in twos W. simmsi Dyar & Knab (p. 147) 



Tufts of the air-tube mostly single 20 



20. Air-tube with a double or triple tuft near the base 21 



All basal hairs of the tube single 22 



21. Lateral abdominal hairs single W. pMlophone Dyar & Knab (p. 86) 



T i 1 vj ^- 1 i,^.. /iKi^ W. telestica Byar & Knah (p. 137) 



Lateral abdominal hairs double... ^ ^^^^^^^ Howard, Dyar & Knab (p. 106) 



22. Lower head-hairs single 23 



Lower head-hairs double 24 



23. Ante-antennal head-hairs in threes W. abrachys Dyar & Knab (p. 142) 



Ante-antennal head-hairs in fours W. hartla Dyar & Knab (p. 157) 



24. Upper head-hairs double W. abia Dyar & Knab (p. 115) 



mitchellii Theobald (p. 82) 

 antoinetta Dyar & Knab (p. 84) 



fW 

 Upper head-hairs in fours < j^' 



The larvae of the following species are unknown 



L. methysticus D. & K. W. violescens D. & K. W. galoa D. & K. 



W. homotina D. & K. W. melanocepTiala D. & K. W. agyrtes D. & K. 



W. minor D. & K. W. homothe D. & K. W. pertinans Will. 



W. bahama D. & K. W. clasoleuca D. & K. W. grayii Theob. 



W. conchita D. & K. W. viatcea D. & K. W. glaucocephala D. & K. 



W. argyrura D. & K. W. gyna^copus D. & K. W. leucopisthepus D. & K. 



W. fratercula D. & K. W. espartana D. & K, W. phroso How., D. & K. 



W. chrysovius D. & K. W. drapetes D. & K. W. cwnonus How., D. & K. 



W. agnostips D. & K. W. hosautus D. & K. W. baria D. & K. 



W. guatemala D. & K. W. panamena D. & K. W. celwnocephala D. & K. 



W. megalodora D. & K. W. cara D. & K. 



W. abascanta D. & K. W. adelpha D. & K. 



WYEOMYIA HOMOTINA (Dyar & Knab). 



Phoniomyia homotina Dyar & Knab, Proc. biol. Soc. Wash., xix, 141, 1906. 

 Phoniomyia (?) homotina Theobald, Mon. Culic, v, 623, 1910. 



Original Description of Phoniomyia homotina. 



Tarsi without any white; abdomen and legs blackish with a dark blue sub-metallic 

 reflection. A large species like P. magna Theobald, but differing therefrom in the 

 color of the body and legs. 



5 specimens. Port Limon, Costa Rica (F. Knab); Trece Aguas, Alta Vera Paz, 

 Guatemala, March and April (Schwarz and Barber). 



Type. Cat. No. 9993, U. S. Nat. Mus. 



Description of Female of Wyeomyia homotina (Male and Larva Unknown) : 



Female. Proboscis long and slender, uniform ; labellge conically tapered, witli 

 fine outstanding setae ; vestiture black. Palpi small, one-eighth as long as pro- 

 boscis, clothed with black scales and rather long, fine setae. Clypeus rounded 

 triangular, dark brown, shining. Antennae moderate, the joints subequal, 

 rugose, coarsely pilose, black ; tori subspherical, with a cup-shaped apical exca- 

 vation, dark brown, slightly pruinose; hairs of whorls sparse, rather long, black. 

 Eyes black. Occiput broad, clothed with flat, appressed scales, black with blue- 

 green reflection, a large vertical patch, silvery white in some lights, dark gray in 

 others, a silvery patch at the sides below, 



Prothoracic lobes well separated dorsally, brown, clothed with dark-brown 

 scales, with a golden reflection ; a row of setae along margin. Mesonotum black, 

 clothed with long, narrow, curved dark-brown scales, the bristles over roots of 

 wings short, pale. Scutellum trilobate, clothed with broad, flat silver scales, 

 each lobe with a tuft of brown bristles. Postnotum elliptical, prominent, black- 

 ish, a tuft of small setae posteriorly. Pleurae black, coxae pale brown, clothed with 

 elliptical silvery white scales. 



Abdomen subcylindrical, blunt at tip, with small brown terminal setae ; dorsal 

 vestiture black, with a submetallic blue reflection ; venter yellowish silvery-white, 

 the colors separated on the sides in a straight line. 



