APPENDIX 1041 



Page 317, line 13 {Culex erythrothorax) . Dele "are translucent and." 

 According to more recent observations by Doctor Dyar, the translucent larvffi 

 occurring in the same situations with those of erythrothorax are those of 

 C. tarsalis. 



Page 343. The statement on the last two lines, that Culex similis is the only 

 species with "minute hair-like" scales on the mesonotum known to us from 

 the West Indies, is incorrect. Culex microsquamosus from Jamaica also shows 

 this characteristic. 



Page 359, line 11 from bottom. For " particular " read " particularly." 

 Page 362, line 15. After second word insert " [Culex pipiens] ." 

 Page 403. Culex microsquamosus. The scales of the mesonotum are of the 

 " minute hair-like " type and rather sparse, as in Culex similis and C. salinariu^. 

 It should have been grouped with these species in the table (page 320). 



Page 516. Mansonia titillans. The eggs and mode of oviposition have been 

 recently described by Dyar and Knab from notes and specimens kindly fur- 

 nished by Prof. Harold W. B. Moore, of British Guiana.* The eggs are dis- 

 posed in a cluster attached to the under surface of the floating Pistia leaves and 

 project downward into the water. 



Volume IV. 

 Genus A'edes (page 607). 



In addition to those already mentioned in our introduction to volume three, 

 the following species has not been included in the text : 

 Aedes lioreaUs (Culex borealis Ludlow, Can. Bnt, vol. xliil, p. 178, 1911). Alaska. 



This species belongs in the group of boreal forms having black legs and 

 variable thoracic ornamentation. Being described from a female, the species 

 must remain unrecognized, species in this category being for the most part dis- 

 tinguishable only by larvae or male genitalia. 



The following species, too recently described for inclusion in this work, are 

 all from the mountains of California : 

 Aedes tahoensis Dyar, Ins. Insc. Menstr., iv, 82, 1916. 

 Aedes hexadontus Dyar, Ins. Insc. Menstr., iv, S3, 1916. 

 Aedes ventrovittis Dyar, Ins. Insc. Menstr., Iv, 84, 1916. 

 Aedes cataphylla Dyar, Ins. Insc. Menstr., iv, 86, 1916. 

 Aedes increpitus Dyar, Ins. Insc. Menstr., iv, 87, 1916. 

 Aedes palustris Dyar, Ins. Insc. Menstr., iv, 89, 1916. 



Page 687. Aedes sansoni. 



The specimens cited from Eureka and Fieldbrook, California, belong to Aedes 

 increpitus Dyar. Our discussion of them should be cancelled. 



Page 740. Aedes pullatu^. 



The specimen cited from Summit, California, belongs to Aedes tahoensis 

 Dyar. The record should be omitted. 



Page 834. Aedes calopus = A'edes argenteus (Poiret). 



The original description of Culex argenteus Poiret is quoted and discussed by 

 Knab in a recent paper.f 



Page 937. Uranotcenia anhydor. 

 Descbeption of Female, Male and Pupa or Ubanot^nia anhydok: 



Female. — Proboscis moderate, much dilated at apex, labellse conical ; vestiture 

 of black scales. Palpi very short, slightly exceeding the clypeus, with black 

 setse especially at the tips. Antennae long and slender, the joints subequal, 



• Eggs and oviposition in certain species of Mansonia. Ins. Insc. Menstr., vol. iv, w. 61-68 

 1916. 



t The earliest name of the yellow fever mosquito. Ins. Insc. Menstr., vol. iv, 1916, pp. 59-60. 



