1886.] NATURAL SCIENCES OP PHILADELPHIA. 13 



ON SOME NEW PSOCIDffi. 

 S. FRANK AARON. 



The several new species described here are in the collections of 

 the American Entomological Society. 



Caecilius subflavus. 



Almost entirely pale yellowish, or bright luteous, very sparsely 

 pilose. Antennae and palpi very pale, the former slightly fuscous 

 on the basal joints. Eyes black and yellow. Ocelli rufous brown, 

 small. On each side of the occiput, from and behind the eye, a 

 fuscous cloud or band, not joining in the middle. Thorax and 

 abdomen yellowish, the anterior lobe of the former with a faint 

 darker spot, and the latter with some fuscous markings ; appendages 

 brighter yellow. Feet pale, semitransparent. Wings hyaline, 

 very slightly clouded in the cells with pale luteous, and with a 

 nucleated darker spot directly below the posterior angle of the 

 pterostigraa. Veins luteous, and with the pterostigma, having a 

 few fuscous hairs, each springing from a black point. Length to 

 end of wings al5out 2-2'5 millim. 



Southern Texas. I collected this species from live oak trees 

 along the river bottoms ; found only two specimens, male and 

 female. The male is smaller, eyes black and large, the thorax 

 fuscous (probably discolored by drying), and the clouds in the 

 wings pale brown. 



Caecilius nubilis. Plate I, fig. 3. 



Pale luteous. Antennae and palpi entirely pale. Nasus some- 

 what indistinctly clouded. Ocelli dark brown. An irregular 

 maculate pale brown line on each side of the head, extending 

 from within the margin of the eyes to the posterior central 

 portion of the occiput, and a double maculate paler brown line 

 dividing the occiput and almost reaching the ocelli. Eyes pale, 

 with a yellowish green reflection. Thorax pale, the lobes clouded 

 with pale brown. Abdomen paler, the sutures, in part, brown. 

 Legs very pale, the last tarsal joint fuscous. Wings hyaline, 

 pterostigma the same, not more opaque ; veins brown, the larger 

 ones, on the basal half of the wing, paler, and on the apical half, 

 wherever the}^ join the margin of the wing, they are, together 

 with the marginal vein at that point, black, or deep fuscous, 



