4 A Monograph of Culicidae. 



following: Anopheles annulipes, Culex nigrithorax, C. procax, 

 C. vigilax, C. annulirostris, Mucidus alternans, and Scutomyia 

 notoscripta. 



The parasite may also occur, but does not seem to reach 

 maturity in Stegomyia scutellaris and S. fasciata, in Culex micro- 

 annulatus, Anopheles maculipennis and Myzomyia funesta. 



Dengue it seems may be transmitted by Culex fatigans 

 (Graham, H., Mosquitoes and dengue, Med. Record, LXL, 

 pp. 204-207, 1902). 



HERMAPHRODITISM IN CULICIDAE. 



Two cases of hermaphroditism have been observed in 

 Mosquitoes, both are recorded by Professor E. P. Felt. The 

 species he and Young named Culex abserratus was described 

 from a single bred specimen, which was bi-sexual. The right 

 side being male, with the cephalic appendages largely female, 

 while those of the posterior extremity are largely male. The 

 male antenna is plumose, the female has elongate segments 

 sparsely clothed with long hairs. The male palp well developed 

 with conspicuous hair-tuft. The female palp was also normal. 

 The sexual appendages were fully formed on the male side, but 

 on the other poorly developed and distorted. Ungues on the 

 front tarsi on the male side unequal, all the others and those of 

 the female side equal. 



It was bred from a larva (vide Mosquitoes or Culicidae of 

 New York State, Bull. 79, Ent. 22, Div. Ent. N.Y. State 

 Museum, 1904). 



The other known form is the Culicada pullatus, Coquillett, in 

 which the right antenna is male, the left, female with male 

 tendencies shown in the enormous prolongation of the basal 

 whorls of each segment. Both palpi are male. The right wing 

 has also male characters, the left female. 



The fore and mid legs of the right side, and the fore leg of 

 the left side are male. The posterior abdominal segments are 

 clearly female. 



I believe these are the only cases of hermaphroditism known 

 in this family. 



