OF ARTS AND SCIENCES. 139 



men showing the wings most clearly (No. 7752) differs considerably 

 from the others, the vein commencing to brunch at a considerably 

 earlier point, all the specimens agree so well in every other particular 

 that these would appear to be individual variations. It is the largest 

 species of the genus. 



Length of body, 11.5 mm.; breadth of thorax, 2.5 mm. ; of abdo- 

 men, 3.3 mm. ; length of antennae, 4.25 mm. ; of front wing, 13.3 mm. ; 

 breadth of same, 3.35 mm. ; length of middle tibia, 2 mm. ; of tarsi, 

 1.25 mm. ; of abdominal appendages, 0.G5 mm. 



Florissant. 4 specimens. Nos. 400, 7752, 9041, 14400. 



Parotermes Hagenii nov. sp. 



Head roundish obovate, very regularly rounded, scarcely half as long 

 again as broad, broadest at the eyes, which are scarcely behind the 

 middle, and are deeply set, their outer border projecting but little 

 beyond the contour of the head. Antenna? nearly as long as head 

 and pronotum taken together, composed of about twenty-six joints, 

 subequal beyond the base, a little tapering at the tip. 



Pronotum more than twice as broad as long, fully as broad as the 

 head, the front margin slightly concave, the hind border and sides 

 forming a regular broad curve. Mesonotum and metanotum shaped 

 exactly as in P. insignis, and with a similar impressed line. 



Abdomen obovate, but with more parallel sides than in P. insif/ms, 

 being only a little broader than the thorax, and nearly as long as the 

 rest of the body, including the head. Abdominal appendages tolerably 

 slender, equal, bluntly pointed, composed of five or six joints, the last 

 of whicli appears to be two or three times as long as the others, which 

 are equal ; the whole is about half as long as the pronotum. 



Legs short, but longer than in P. insif/ms, the tibiss being about as 

 long as the width of the thorax, but they are imperfectly preserved on 

 all the specimens. 



Wings a little more than four times longer than broad, the middle 

 of the front pair scarcely reaching the extremity of the abdomen, 

 broadest in the middle, tapering almost as much apically as basally, 

 the tip roundly pointed, the costal margin pretty straight until shortly 

 before the tip, the lower margin broadly curved. The basal scale is 

 of the same shape and size as in P. insignis, but with a stronger costal 

 curve. The scapular vein and its superior branches are stout, its 

 inferior branches and the veins below feeble, so as only to appear 

 under favorable circumstances, being visible in only half of the sped- 



