174 ENTOMOLOGICAL SOCIETY 



. Recourse has been taken to the markings of the head, which 

 furnish, in most cases at least, a basis for natural classification. 

 In this respect the genus is very similar to CEcanthus, in the 

 crickets. As to the exact value of these cephalic markings, there 

 will, of course, be various opinions. I have believed that Fitch 

 carried it to an extreme, and that several of his so-called species 

 are not entitled to specific or varietal rank. Yet these markings 

 are of value, for in forms that to the eye appear certainly distinct 

 the best characters for separation will be found to be these mark 

 ings of the head. 



Two of the species I describe below are from Colorado, both 

 rather closely related to known forms ; the one to the eastern Ch. 

 lineaticornis Fh. ; the other to the southwestern Ch. punctiner- 

 vis McLach. The third, a species of Leucochrysa, comes from 

 Alabama. All three have been collected by Prof. C. F. Baker. 



Chrysopa sabulosa, n. sp. 



Green ; face yellowish, a short black stripe under each eye, broadest at 

 tip, near the inner end is a small black dot ; just below the antennae is a 

 transverse black mark. Above on the green vertex are two round black 

 dots ; the palpi are black. The antennse beyond the second joint are black 

 on their basal half ; the basal joints are short and close together, and with 

 a black stripe on the outer side, and a large black spot below. The pro- 

 thorax is green, unspotted, very short, with a transverse furrow behind 

 the middle. Thorax, legs, and abdomen pale green. Wings hyaline, 

 with green veins, some transversals partly black, the divisory of third 

 cubital black. Tip of wing broadly rounded, pterostigma quite distinct. 

 Alar expanse 24 mm. 



One specimen, Ft. Collins, Colo. 



Differs from Ch. lineaticornis in more spotted head, in the 

 large spot on lower side of basal joints of antennae, in black 

 divisory veinlet, and in shape of prothorax. 



A Chrysopa fraterna, n. sp. 



Yellowish, marked with dark red brown. Face i-ather greenish, a short 

 black stripe under each eye, and each side of labrum an elongate spot ; a 

 reddish band across the base of labrum and a spot in the middle. Two 

 black lines between the antenna, diverging above, each side of venter near 

 the eye is a black spot. Palpi broadly banded with black. Basal joint 

 of antenna has a dark spot on inner side, and two lines above, second joint 

 with a black ring, rest of antennse pale. Thorax broadly margined each 

 side with a red-brown stripe and a narrow line on the middle. Legs pale, 

 a brown dot under tips of the anterior femora, and a band just before tip 

 on posterior femora. Abdomen much spotted with dark red-brown. 

 Wings hyaline, the subcosta, sector, cubitus and postcubitus dotted with 

 brown ; the transversal wholly dark. Tip of wing rounded ; the sector of 

 radius curves but slightly toward the radius. 



