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Vol. XXXV. 



LONDON, AUGUST, 1903. 



No. 8 



DESCRIPTION OF A NEW NORTH AMERICAN CULEX. 



BY FRED. V. THEOBALD, M.A., BRITISH MUSEUM, LONDON, ENGLAND. 



Amongst a number of CulicidK sent me by Professor Kellogg from 

 California, collected by himself and the students of Leland Stanford 

 Junior University, is a very distinct new Cnlex, w^hich is here described 

 as Ciiiex Kelloggii. 



The collection contained several interesting species besides this one, 

 including a new Anopheles, called by Professor Kellogg Anopheles 

 /ranciscattus ; specimens of the European Theobaldia anmdata, Meigen, 

 and the marked Theobaldia incidens, Thomson, and several others, which 

 he will refer to elsewhere, including another new Culex. It may be here 

 pointed out that Coquillett's Culex Curriei, now included in my new genus 

 Grabhamia, is very closely allied to Grabhamia dorsalis, Mg. It is, 

 hov/ever, a smaller and thicker set insect, and has the last hind tarsus 

 white. This collection also included a series of Curriei, as well as 

 Anopheles maculipennis, Mg., and A. punctipennis, Say. The A. 

 viaculipennis are smaller than they usually occur in Europe. 



Culex Kelloggii, nov. sp. — -Thorax brown, with rich reddish-brown 

 scales showing linear arrangement, two small pale spots, some rows of 

 gray scales behind and on the scutellum. Proboscis black, with a white 

 band. Abdomen black, with basal white bands and lateral spots. Legs 

 black ; femora pale at base, with a white line or row of spots, also the 

 tibise, with a line of white spots. Metatarsi and tarsi showing apical- 

 and basal white banding ; last hind tarsus with a black median band or 

 all white. Wings unspotted. 



^ . — Head brown, clothed with narrow-curved gray scales in the mid- 

 dle and behind, white ones forming a border around the eyes, brown ones 

 between ; at the sides small flat white scales, in the middle are numerous 

 ochraceous upright forked scales, laterally the upright forked scales are 

 black, two long brown bristles project forward between the eyes. Palpi 

 black-scaled, with some large white scales at the apex, and some forming 



