866 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvi. 



The following description is that of the author." which is quoted in 

 full: 



Bacillus coloradn? 'i^vvid.der (pi. 1, fig. 4), leaker's ranch, Beulah, Sapello Canyon, 

 800(y on Monarda atrida (Willmatte P. Cockerell); La Trementina (Alice Blake). 

 The following description was taken from the first specimen, which is that figured: 



Testaceous, more or less clouded with fuscous dorsally. Head striped feebly with 

 fuscous, esjiecially above and with five subequidistant delicate longitudinal carinje; 

 whole thorax and abdomen similarly carinate, but otherwise smooth except for very 

 minute rather sparsely scattered ferruginous granules l)etween the dorsal and sub- 

 dorsal cariu!!'; second joint of autennje small and globular, the remainder consisting 

 of a hardly articulate, slightly depressed, lanceolate, bluntly pointed mass. 



Length of body, 48 mm.; antennae, 4.5 mm.; mesothorax, 10.5 mm.; metathorax, 

 8.5 nun.; abdomen, 25 mm.; hind femora, 12 mm.; width of metathorax in mi<ldle, 

 1.5 mm. 



The a))o\'e description is from a female specimen. The males are 

 more slender, with longer antennge and legs. 



From a study of a series of specimens, both male and female, from 

 Nebraska, Colorado, New Mexico, Arizona, and California 1 conclude 

 that there is but one species. They show a certain amount of varia- 

 tion in color and size, but afford no specific characters. The antennae 

 of a mature pair from California measure 5 mm. in the female and 7 

 mm. in the male. One male from Arizona has antennae measuring 

 12 nnu. in length. The color varies from almost wholly infuscated to 

 a light brown. One female from California has an extreme length of 

 very nearly 70 mm. But there are all stages of gradation between 

 these extremes of color and size and no characters present themselves 

 to warrant the recognition of more than the one species. 



Siil^fainily B^cxj]srcT:i:^i]sr..;zE. 



The m(>mbers of this subfamily are long, slender, stick-like insects 

 with the mesothorax at least five times as long as the prothorax; 

 antenna', except in tSeriityle^ more than twice as long as the anterior 

 femora; tibia3 without a sunken areola at apex beneath. 



The slender body at once distinguishes this subfamily from the 

 othei's of our fauna except Clitumninie. The long antenna?, however, 

 readily separates it from that group. We have four genera of 

 Bacunculina' occurring in the United States. The following table 

 will serve to separate them: 



a. Head subquadrate or subcylindrical, usually distinctly longer than broad, attached 

 obliquely or horizontally. (Plate LVII, fig. 4.) Male cerci subequal through- 

 out or apically trifid. 

 h. Middle femora of the male not much swollen, not thicker than the posterior 

 ones; posterior femora unarmed in both sexes. 

 c. Male cerci ai>ically trifid, head carinate or longitudinally rugose between the 

 eyes; antenn;e rarely twice as long as the anterior femora. 



Pseudosermijle, new genus. 



tv. Male cerci simple; head smooth; antenuie more than twice as long as the 



anterior femora Bacuncidus Burmeister. 



«Proc. Davenp. Acad. Sci., XIV, 1902, p. 21. 



