HEMIPTERA— HETEKOPTERA— LYG.^IDJ<:. 399 



apex; membrane clear. Abdomen narrower than the thorax, with parallel 

 sides and broadly rounded apex, and half as long again as broad. 



Length of body, 3.55"™; breadth of thorax, 1.35°"". 



Florissant. Four specimens, Nos. 5793, 9692, 12096, 12464. 



5. Linnyea evoluta. 



PI. 23, Fig. 21. 



Head much broader than long, the front broadly angled ; basal joint of 

 antennse not surpassing the head, the last joint two-thirds the length of the 

 second ; rostrum reaching the posterior extremity of the fore coxre. Thorax 

 transversely striate, the posterior half with parallel sides, continuous with 

 the equally broad abdomen, the anteiior half rapidly narrowing with 

 oblique arcuate sides, so that the anterior border is about two-thirds as long- 

 as the posterior and as long as the length of the thorax. Hemelytra with 

 the corium clear, except for a faint cloudiness which is a little intensified in 

 a costal margin, the veins marked with serial punctures; membrane clear. 

 Abdomen parallel sided, broadly rounded apically, about half as long again 

 as broad. 



Length, 3.6""" ; breadth, 1.4"'"'. 



Florissant. Two specimens, Nos. 5S40, 7233. 



6. LlNN.EA GRAVIDA. 



PI. 23, Fig. 19. 



Head small, apparently rather less than half as broad as the thorax, 

 shorter than broad, the front broadly angled ; antennae with the basal joint 

 just attaining the front of the head, the whole scarcely longer than head 

 and thorax. ' The latter smooth or scarcely punctate, half as broad again 

 as long, the sides well rounded, tapering forward a little, the outer anterior 

 angles well rounded off, the anterior margin about two-thirds the length of 

 the posterior. Hemelytra with a pale testaceous costal stripe on the corium 

 with the membranal edge marked irregularly with the same, as well as with 

 a stripe following the outer side of the sutura clavi and another down the 

 middle of the corium ; membrane clear. Abdomen full, about half as long 

 again as broad. This species is slightly larger than any of the others. 



Length, 4.5'"'"; breadth, 1.75°"". 



Florissant. Four specimens, Nos. 2966, 4994, 10410, 10882. 



