Dec, 1906] DyarandKnab: Larv^ of Cuucid^e. 187 



as the antennae, a short one and a sharp angle ; a long double blade- 

 like digit that appears to be divided to the base, one part dark and 

 about two-thirds as long as the longer pale portion. 



The larvae were collected by the junior author at Santa Lucrecia, 

 Mexico, in the valley of the river Coatzacoalcos. They were not 

 bred. The larvae occurred in a ditch full of vegetation. 



Uranotaenia continentalis, new species. 



Sent to Miss Mitchell by Dr. Dupree from Baton Rouge, Louisiana, 

 and identified as ' ' Uranotaenia lowii Theob.' ' The characters are in- 

 dicated in the table. 



Uranotaenia sapphirina Osten=Sacken. 



Aedes sapphirinus Osten-Sacken, Trans. Am. ent. soc, ii, 47, 1868. 

 Uranotcenia sapphirina Blanchard, Les Moustiques, 407, 1905. 



Not uncommon in permanent swamps or ponds. We have it from 

 New Hampshire and New York. The larva looks like an Anopheles 

 with a long tube, owing to its position in the water and shape of the 

 head. 



Uranotaenia geometrica Theobald. 

 Uranotcenia geometrica Theobald, Mon. Culic, ii, 247, 1901. 



Described from Santos, Brazil. Our specimens are from Mr. F. W. 

 Urich in Trinidad, who collected them in a small puddle in a drain. 

 The water was covered with green algae. Mr. Urich says that the 

 larvae reminded him at first sight of Anopheles albipes. Thev were 

 colored green, from algae, no doubt. We have accepted the deter- 

 mination rather because we have no means of disproving it, than 

 that we feel any confidence in its accuracv. 



Uranotaenia socialis Theobald. 



Uranotcenia socialis Theobald, Mon. Culic, ii, 340, 1901. 

 Uranotcenia socialis Grabham, Can. ent., xxxvii, 403, 1905. 



Described from Jamaica. Dr. Grabham has made known the larva 

 with a description and figure. 



Uranotaenia coquilletti, new species. 



Near socialis Theob., but differentiated by the characters given in 

 the table. Dr. Dupree sent the specimens to Miss Mitchell and Mr. 



