284 PROCEEDINGS OF THE NATIONAL MUSEUM vol. in 



For the present I conclude that the type female of borealis repre- 

 sents an atypical member of the population. However, there is the 

 possibility that borealis of Cole is not the same as that of Sabrosky 

 (1948) and this author, and a new species may be involved here. 



Ogcodes (Ogcodes) colei Sabrosky 



Plate figures 21, 64, 98 

 Ogcodes colei Sabrosky, Amer. Mid. Nat., vol. 39, p. 423, pi. 1, fig. 7, pi. 2, fig. 

 18, 1948. 



Diagnosis: Species of group iv. Male abdomen patterned, without 

 obvious tergal white fasciae; similar to both vittisternum Sabrosky 

 and shewelli Sabrosky, but with abdomen mostly brown and not 

 yellow; both tergites ii, iii have a large brown median spot which is 

 flanked by yellow areas, tergites in, iv are nearly entirely brown; 

 abdominal pile about twice as long as that on mesonotum; venter 

 with lateral but no median row of brown spots; venation as in plate 

 4, figure 21; male genitalia with distal portion of aedeagus markedly 

 acuminate (pi. 10, fig. 64) and with wealdy developed ejaculatory 

 apodeme (pi. 12, fig. 98). 



Types: Holotype cf, Huachuca Mts., Ariz. (USNM 58366). 

 Paratype d^, Tallac Lake, Tahoe, Calif., July 5, 1915 (E.P. VanDuzee, 

 FRC). The locahty spelling is probably "Tallac" and not *'Tallao" 

 as originally published. 



New distribution record: California: 1 cf, Mill Valley, Marin Co., 

 Aug. G, 1957 (H. B. Leech, CAS). 



Discussion: A third specimen mentioned by Sabrosky as 

 probably this species from Clear Lake, Lake County, Calif., 

 July 28, 1934 (E. C. Van Dyke, CAS), has been restudied and is 

 colei. A fourth specimen recorded by Sabrosky as possibly being 

 colei from Grass Valley, Calif., has been examined and found to be 

 borealis Cole. A female specimen from the new locality above, 

 and collected on Aug. 1, 1957, has been seen and maybe this species, 

 but if so, shows a degree of sexual dimorphism not heretofore noted 

 in Ogcodes species. It is also possible that this female represents a 

 species of the pallidipennis group, perhaps adaptatus. In any case, 

 I note the following female characteristics which differ from the male 

 of colei as compared with the male specimen above, with the idea of 

 pointing out the possibility that sexual dimorphism exists here as 

 has been shown for other genera of the Acroceridae (see Schlinger, 

 1956). 



Female: Head one-half as large as male; abdomen dark 

 brown, not patterned, but with vary narrow posterior white fasciae 



