HAGEK.] ZOOLOGY — PSEUDO-NEUEOPTERA AND NEUROPTERA. 571 



from the ravages of this destructive insect for a number of years ; but that it atouIcI 

 ultimately make its appearance in that region through the agency of the seed. This 

 I believe to be the mauner of their introduction to distant localiti.es, as they are slug- 

 gish tra.velers, and quite incapable of spreading so rapidly by their own instinct. This 

 belief is further sustained by their continued absence from the Salt Lake basin, occa- 

 sioned by the cheapness of vegetables in the Mormon settlements excluding the 

 importation of potatoes from Colorado. Not found at a greater altitude than 8,000 feet. 



* Eroiylus BoisduvaUi. — Usually found upon the Pimts ponderosa, and never seen at a 

 greater altitude than 9,000 feet. Very abundant in the eastern foot-hills of the Front 

 range, but not found on the Pacific slope in Colorado, although it has been collected 

 in Arizona. 



Nemognatha lurida and Lylta Nuitalli verify the theory of the adaptability of the color 

 of species to their food-plant ; the former being fouud feeding upon the pistil of the 

 Cirsium unduJatum, which it so nearly resembles in color as to often escape close scru- 

 tiny ; the latter, found upon the Iris tenax, is of precisely the same color as that 

 plant. 



W. L. C. 



EEPOET ON THE PSBUDO-NEDROPTERA AND NEUROPTERA 

 COLLECTED BY LIEUT. W. L. CARPENTER IN 1873 IN COL- 

 ORADO. 



By Dr. H. A. Hagen. 



Family TERMITINA. 



TEEMOPSIS. 



T. angusticolUs, Hagen, Synop., 3, 1. 



Rufous paler beneath ; mouth infuscate; wiugs dusky hyaline ; cos- 

 tal veins rufous ; head oval flat; prothorax small, semicircular. Male 

 and female. 



Yar. Nevadensis. — Dark reddish brown, scarcely paler beneath ; wings 

 dark, smoky ; costal veins blackish-brown. Male and female. 



Length to tip of wings, 23-26 millimeters; body, 11 millimeters; 

 expansion of wings, 42-44 millimeters. 



Soldier. — Stout, yellow; head and thorax rufous; head long, oblong, 

 depressed, dark-brown anteriorly ; labrum subquadrangular, yellow ; 

 mandibles black, long, straight, the pointed tip incurved; a tooth before 

 the tip of the left mandible ; palpi brown ; eyes wanting, their place 

 indicated ; antennae as long as the head, about 24 joints ; the basis of 

 the joints brown, darker on the basal joints ; prothorax as large as the 

 head, semicircular ; mesothorax and metathorax rounded behiud, with 

 a small alar lobe each side, directed backward ; abdomen ovoid ; appen- 

 dages four-jointed, long; last segment with two divergent, anal spines; 

 feet strong, rufous ; femora paler yellowish. 



Length, IG millimeters. 



Larva. — Stout, elongated, flattened above, pale ; head yellow, rounded; 

 mouth darker; eyes indicated as in the soldier; antennae 24 jointed; 

 prothorax semicircular, small; mesothorax and metathorax larger, 

 rounded behind, a small alar lobe on each side, directed downward; 

 abdomen ovoid, the appendages two-jointed, but with indications of two 

 more joints; last ventral segment with two anal spines; feet strong, 

 yellow. 



Length, 11 millimeters. 



Nympha. — Size and color of thelgrva; eyes present, pale; alar lobes 

 large, flat, triangular, horizontally covering the basal third of the abdo 

 men; appendages four-jointed ; anal spines divergent. 



Habitat. — California, Sau Francisco, (Mann), San Diego, March, 

 April (Crotch) ; Gulf of Georgia, Fort Steilacoom, Semialuuoo (A. Agas- 



