March, '03] 



ENTOMOLOGICAL NEWS. 



73 



tip twisted, the entire palpus covered with fine silvery sericeous hairs 

 which give even to the black base a glistening silvery color when viewed 

 from certain directions. 



Ch rysotus philtrum. 

 The middle tarsus and the head are twisted to show the ventral aspect. 



Thorax quadrate, humeri rectangular, dorsum metallic green, slightly 

 brassy towards the roots of the wings. Acrostichals short and sparse, 

 approximated into a single median series ; the inner row of dorsicen- 

 trals with five moderate bristles, the outer row with four ; a few humeral 

 bristles present : scutellum with two distant long bristles : posterior 

 portion of mesonotum but little depressed : entire pleura slaty with 

 cinereous dust. Abdomen depressed basally, metallic brassy green, en- 

 tirely but rather sparsely covered with short stiff black hairs. Hypopy- 

 gium small, terminal, compressed, concolorous with the remainder of the 

 abdomen, bare. The sixth ventral emits a pair of short, hooked, chi- 

 tinous appendages, between which is a small fleshy hairy process. 



Coxae and legs yellow, the middle and hind coxae somewhat darkened 

 above on the basal half, second joint of middle tarsi white, three outer 

 ioints of middle tarsi black. Legs slender and comparatively long, pro- 

 vided with short dark hairs, middle tibiae somewhat exceeding their 

 femora, one-third longer than their metatarsi ; middle metatarsi nearly 

 as long as the remainder of the tarsus ; middle and hind tibiae provided 

 with a glabrous streak on the outer edge, that of the middle tibiae well- 

 defined by a limiting series of short bristles, both tibiae with a bristle on 

 the basal third of the outer edge : last three joints of the middle tarsi 

 strongly compressed, straight below but each joint arched and outwardly 



