276 MOSQtriTOES of north AMERICA 



segments 3 to 5, single on sixth. Lateral comb of eighth segment of many spines 

 in a triangular patch. Air-tube about five times as long as wide, uniformly 

 tapering; pecten reaching almost to middle of tube, the teeth longer outwardly 

 and retreating a little towards the dorsal aspect ; a two-haired or single tuft just 

 within the pecten; a three-haired tuft near middle of tube placed toward the 

 dorsal aspect, subapical tuft three-haired; terminal hooks small. Anal seg- 

 ment about twice as long as wide, ringed by the plate, which is slightly spicular 

 on its posterior border; dorsal tuft of three hairs of different lengths on each 

 side ; ventral brush large, confined by the ehitinous ring. Anal giUs moderate, 

 pointed, one of them usually very large, three times as long as the others and ex- 

 tending far behind. 



The larvae live in the edges of streams and pools where protected by grass or 

 other vegetation. Mr. Busck and Mr. Jennings both obtained them in such loca- 

 tions several times. 



Panama. 



Taboga Island, Panama Bay (A. H. Jennings) ; Las Cascadas, Canal Zone 

 (A. H. Jennings) ; Pedro Miguel, Canal Zone, April 24, 1907 (A. Busck) ; 

 upper Chagres Kiver, June 7, 1907, associated with Cidex coronator (A. Busck) ; 

 Pedro Miguel, Canal Zone, larvae in a receptacle, Ifovember 39, 1907 (A. H. 

 Jenninp) ; Paraiso, Canal Zone, larvae in a pool on the face of a landslide, 

 December 16, 1907 (A. H. Jennings). Also recorded by Mr. Busck from 

 bromelias (under the title Culex factor), but we think so recorded through 

 some error. 



Some of the specimens now included under Culex revelator were at first 

 wrongly determined for Mr. Busck as Culex inquisitor and a record of them 

 published by him under that name. The single adult which we determined for 

 Mr. Busck as Culex factor, is also properly referable here. The specimen is a 

 variant, having lost the white rings on the tarsi and hence fell wrongly by our 

 tables. We have questioned Mr. Busck on the subject, and he feels sure that all 

 the specimens imder his No. 104 came from water in the leaves of a bromeUace- 

 ous plant on the upper Chagres Eiver, which he collected during his first trip 

 by canoe. Mr. Busck met with an accident on the trip, his boat being over- 

 turned, but the valise containing the larvae was recovered with these specimens 

 intact. N"o isolations were obtained from the No. 104 culture, but two species 

 of larvae occurred in it. One is Culex jenningsi, the other Culex revelator. We 

 think the single bred adult is of the latter species, as it agrees entirely with 

 normal adults, except for the absence of the white rings on the tarsi. This is a 

 variation that occasionally occurs ; besides, we notice on very careful examina- 

 tion slight traces of these markings. Further, the specimen was killed too soon 

 after emergence, and the colors are not quite fuUy developed. The only ab- 

 normal circumstance, which we can not explain, is the apparent occurrence of 

 these larvae in bromelias. We know of no other case where a species addicted to 

 ground-pools has been also found, even occasionally, in bromelias. The bro- 

 melias contain, besides their special inhabitants, the species of the group Micro- 

 culex (of which Culex jenningsi is one), also other species of Culex; but these 

 have never been taken except in the bromelias, and their larvae could not be con- 

 fused with this species. We are, therefore, inclined to the opinion that some 

 error has entered into the breeding records in this instance. 



CULEX LAMENTATOR Dyar & Knab. 



Culex lamentator Dyar & Knab, Joum. N. Y. Ent. Soc, xlv, 207, 219, 1906. 

 Culex lamentator Dyar, Proc. Ent. Soc. Wash., vlll, 17, 1906. 

 Obioinal Descbiption of CtriBX lamentatoe: 



Antennae with the tuft but slightly beyond the middle, dark; head hairs In threes; 

 body granular, subsplcular; lateral hairs In twos after the first segment; trachese 



