300 JOURNAL OP ECONOMIC ENTOMOLOGY [Vol. 2 



third discoidal almost obsolete, the two branches running parallel, but being^ 

 very faint at their point of junction ; veins brown, slender, except the second 

 discoidal, which is robust; beak reaches second coxae. Found on the needles 

 of cultivated Monterey pines, both in the greenhouse and outside. The insect 

 covers itself lightly with a gray flocculent coating. This species shows a cer- 

 tain similarity to L. californicus Essig, but is larger in all its measurements 

 and has the antennae larger in comparison to its length and lacks the red spots 

 in the adult stage. 



Apterous Female 



With grayish pulverulence removed, dark green ; length of body 2.40 mm. j 

 breadth of body .95 mm. ; length of beak .55 mm. ; antennae III .50 mm. ; IV 

 .25 mm. ; V .25 mm. ; VI .20 mm. ; long, narrow towards the extremities ; head 

 dusky ; eyes red ; antennne pale, half as long as body, hairy ; the last joint and 

 the articulations dusky ; thorax and abdomen dark green ; cornicles very short, 

 truncate, dusky ; cauda green, conical ; legs long, especially the posterior pair, 

 dark green ; the femora and tibiiB are hairy ; tarsi black ; beak dusky, barely 

 exceeding the third coxre. 



The young are wholly pale green, except the eyes and abdominal spots,. 

 which are pink. The last joint of the antennae and tarsi are dusky. 



Lachnus occidentalis sp. nov. ; Abies grandis. 



Apterous Female 



Length of body 2.90 mm. ; breadth of body 1.50 mm. ; beak .90 mm. ; antennae 

 III .35 mm. ; IV .12 mm. ; V .20 mm. ; VI 18 mm. ; dark green or brown ; eyes 

 red ; antennae one third as long as body, yellow, sixth joint dusky ; head 

 darker than abdomen, short ; prothorax dark, with the suture yellow ; legs 

 yellow, hairy, the articulations and tip of tarsi black ; abdomen broadly 

 oval ; cornicles lateral, conical, dusky at the tip ; cauda very short, blunt ; 

 beak dusky, almost half as long as the body. The young are brown. This 

 species lives in large colonies along the underside of the young shoots of 

 Abies grandis. Their presence can be detected by asmoke-colored, Succulent 

 matter, and by the blackening of the leaves from the association of a fungus 

 with their excretions. Ants are always to be found among them, and they 

 are preyed on extensively by a Syrphus fly. This louse occurs on AMes 

 grandis in the fall and spring. Winged forms were not seen. 



L. alnifolioi Fitch ; Alnus. 



This large, green, rapidly moving species was taken on the alder in 

 April. 



Cladohius salicti Harris; Salix. 



Taken on willow in November, both sexes. 



C. rufulus, sp nov. \ Salix sp. 



Alate Female 



Length of body 3.8 mm. ; expanse of wings 11.25 mm. ; antennae III .60 

 unu., IV, .40 mm., V .40 mm., VI .25 mm., VII .27 mm. ; head, prothorax and 

 thoracic lobes grayish-black ; prothoracic tubercles small, blunt ; eyes dark ; 



