198 



PSYCHE. 



[April 1898. 



Bythoscopus variabilis Fh. var. 

 coloradensis 11. var. 



I give this name to a form found in 

 northern Colorado which cannot be 

 separated structurally from variabilis., 

 though the color is quite distinctive. 

 The head, pronotum, scutel, and clavus 

 basally, are yellow. Vertex with two 

 small black spots. The pronotum has 

 the depressed area behind each eye 

 rufous. The sides of front, sternum, 

 legs, and abdomen, are rufous. The 

 elytra are rufescent with two hyaline 

 spots on disc. 



Described from numerous specimens 

 taken in the foothills west of Fort 

 Collins, June 15th to August 4th and 

 at Forrester's Ranch on the Upper 

 Laramie River in August. In both 

 localities pruni was common with it. 

 This variety was recorded in the 

 Prelim. List Hemip. Colo, as fenes- 

 tratiis. I do not know that fenestra- 

 tus, the type of which I have studied, 

 has ever been found in Colorado. 



The most important work yet to be 

 done among our Jassoid insects, is the 

 careful breeding of the various forms in 

 large numbers. This is especially true 

 among the Bythoscopids and Typhlo- 

 ■cybids. In Bythosopus, Pediopsis, and 

 Idiocerus, such work, properly done, 

 will be fraught with the most important 

 results. 



Bythoscopus truncatus n. sp. 



Female. Length 4.5 mm. Color clear 

 rufous, venter darker laterally. Legs pale 



yellowish, fore femoia rufous, middle and 

 hind femora piceous. Elytra subhjaline, 

 narrow costal and apical margins, and two 

 irregularly transverse bands fuscous. Last 

 ventral segment as long as preceding, trun- 

 cate posteriorly. Face finely rugoso-punc- 

 tate. Vertex, and pronotum anteriorly, 

 coarsely irregularly punctured, the former 

 with a faint median callosity. Pronotum 

 posteriorly rather coarsely transversely 

 rugose. 



Described from a single female, 

 collected by myself at the Michigan 

 Agricultural College in iSSS. At that 

 time Mr. Van Duzee called this sob- 

 )-itis, but later settled that name on a 

 very different form which I have since 

 received from the northeast in num- 

 bers. 



Agallia bigeloviae Baker. 



The type of this species represents 

 a small pale form. Farther west it 

 becomes larger and frequently darker, 

 when superficially it more closely 

 resembles sangiii>iole7ita. But the 

 form of the last ventral segment of 

 the female is distinctive. There are 

 specimens in the Nat'l Museum from 

 Death Valley and the Panamint Mts., 

 collected by Mr. Koebele, and ' one 

 from Los Angeles, collected by Mr. 

 Coquillett. 



Agallia sanguinolenta Prov. var. 

 inconspicua n. var. 



There are in the National Museum 

 two specimens of a very small form, 

 pale yellowish throughout except two 



