THE BEDBUG FAMILY. 



619 



practical way to effect this end is by very liberal applications of benzine 

 or kerosene, or any other of the petroleum oils. These must be introduced 

 into all crevices with small brushes or feathers, or by injecting with small 

 syringes. Corrosive sublimate is also of value, and oil of turpentine may 

 be used in the same way. The liberal use of hot water, wherever it may 

 be employed without danger to furniture, etc., is also an effectual method 

 of destroying both eggs and active bugs." 



594 (837). Cimex pilosellus (Horvath), 1910, 12. 



Broadly oval. Dark reddish-brown; scutellum fuscous; upper sur- 

 face rather sparsely punctate and clothed with moderately long, suberect 

 yellowish hairs. Pronotum with apex less deeply emarginate than in 

 lectularius; side margins narrowly but distinctly reflexed and ciliate 

 with long hairs. Scutellum three times as wide as long. Elytra with 

 inner margin or tips subtruncate and longer than scutellum; hind or 

 apical margin feebly curved, the outer angle strongly rounded. Femora 

 rather strongly swollen, not grooved beneath. Length, 3.8 — 4.3 mm. 



Ranges from Maine westward to British Columbia and the 

 Pacific states ; in the east not recorded south of North Carolina. 

 Parasitic on various species of bats, and probably occurs with 

 them over the entire United States. Differs from the Euro- 

 pean bat bug, C. pipistrelli Jen., by the much more widely dilated 

 sides of pronotum. 



II. (Eciacus Stal, 1873, 104. 



In addition to the characters given in key, this genus differs 

 from Cimex in having the head subequal in length to median 



part of pronotum ; joints 3 and 4 

 of antenna? less slender, filiform ; 

 apex of pronotum obtusely sinu- 

 ate, its front angles but little 

 prolonged ; elytral pads more nar- 

 rowed within. Two species are 

 known, one occurring in our ter- 

 ritory. 



595 (838). CEciacus vicarius Hor- 

 vath, 1912, 261. 



Broadly oval, abdomen almost 

 circular. Pale reddish-brown; tylus, 

 elytra, beak and legs dull yellow. Joint 

 1 of antenna? shorter than tylus, one- 

 Fig. 156, x 12. (After Lugger). third the length of 2; 3 and 4 subequal 



in length, each slightly longer than 2. 

 Pronotum more than twice as wide as long at middle, disk coarsely 

 sparsely punctate, sides rounded, narrowly reflexed, front angles obtuse, 

 hind ones rounded, hind margin truncate. Elytra very short, trans- 



