130 S. A. ROHWER. 



Trypoxylon cockerellse n. sp. 



Female. — Length about 15 mm. Clypeus closely, finely punctured; 

 not carinated; in the middle anterior margin deeply, angularly emar- 

 ginate, at the side of this emargination there is a very small tooth. 

 Front closely punctured with large punctures; below the anterior 

 ocellus impressed; a short longitudinal carina above the antennae, 

 this carina is somewhat indistinct; occiput shining, impunctate, dis- 

 tinctly emarginate in the middle. Space between the eyes at the 

 clypeus slightly less than at the vertex; at the clypeus the distance is 

 about the same as the length of the third antennal joint, not less. 

 First joint of the antennas ovate, broad, twice as wide as the third 

 joint; third joint very slightly curved, about a third longer than the 

 fourth; fourth joint a very little longer than the fifth; apical joint 

 longer than the preceeding one. Prothorax and dorsulum shining, 

 sparsely punctured with distinct punctures; on the dorsulum about 

 the length of the tegulae above the tegulae is an elongate fovea. Scu- 

 tellum punctured as dorsulum, not impressed. Mesopleurae punctured 

 as dorsulum. Metanotum with a triangular area which at the posterior 

 part is finely transversely striated, the remaining anterior portion is 

 more coarsely longitudinally or slightly obliquely striated; a distinct 

 basal longitudinal channel. Metapleurae shining, finely punctured. 

 Posterior face rugose, with a medinal channel. Spur of the anterior 

 tibiae, inner spur of posterior tibiae curved. First abdominal segment 

 nodose at apex, second and third raised, the second not as strongly so 

 as in T. rufozoualis Fox; apical segment sharply pointed at the apex; 

 opaque, finely punctured; apical ventral segment with some long hairs. 



Black; basal two-thirds of the second abdominal segment and sides 

 of the first rufous. Palpi brownish. Cheeks, front below emargination 

 of eyes, clypeus, pleurae and pectus, also sides of abdominal segments 

 with silvery pubescence. Dorsulum with gray pubescence. Wings 

 hyaline, apical margin dusky; venation black. Outer side of posterior 

 tibiae with golden pubescence. Posterior tarsi in part flavus. 



Habitat.— Boulder, Colorado, July 17, 1908 (Mrs. W. P. 

 Cockerell) . On foliage of Virginia creeper (Parthenocissus) . 



In Fox's table (N. Am. Larridae) this species runs out at 12, 

 because the posterior tarsi are black and the second segment 

 is only rufous. Besides differing from T. rufozonalis Fox in 

 color, it differs from it in not having the clypeus " slightly 

 carinated" nor the " postscutellum slightly impressed." T. 

 cockerellce is most closely related to T. californicus Sauss., but 

 the darker abdomen will at once separate it from that species. 



Photopsis seminanula n. sp. 



Female. — Length 4 mm.; sting 2 mm. Mandibles acute, simple, 

 with a deep incise beneath near the base; maler space about as long 

 as the slightly oval eyes; eyes without facets; antennal foveae not 

 bounded by a transverse carina above. Scape curved at the apex, 



