170 DOLICHOP1D.E. 



tawny ; still differing from D. griseipennis, fcem., by the colour and 

 more numerous spines of the hind metatarsus. 



Not rare. (E. S. I.) 



06s. D. nitidus, Mg., which came to him from England, is re- 

 ferred by Stannius to his D. nitens, a species which has black 

 antennae with only the underside of the first joint dull yellowish, 

 and entirely black hind tarsi : while it differs from the next by 

 the beardless hind thighs ; and from D. diadema, by the black 

 fringe of the alulae and the yellowish face of the male, as well as 

 by the colour of the antennae. I know none such. 



36. griseipennis, Stn. isis, xxviii. 49. 4 (1831) ; Ztt. nitidus, 

 Hal. ; Stg. Obscure ceneus, hypostomate albido, antennis nigris basi 

 subtus luteis, pedibus flavis, tarsis nigris, metatarsis anterioribus Jlavis, 

 alis vena subapicali rectangulatim fracta appendiculata ; Mas. femoribus 

 posticis nigro-ciliatis, alis lineola costali nigra. Long. 2i; alar. 4f lin. 



Brassy-green, with little shine. Face yellowish-white. Antennae 

 black, underside of the first joint tawny yellow, third joint rather acute, 

 and in the male oblong. Thorax with coppery stripes more marked 

 than usual. Wings rather broad, dark greyish-hyaline ; bend of sub- 

 apical vein rectangular, with a little branch ; a black costal swelling in 

 male. Black edge of lamellae narrow; ciliated, jagged at the tip. 

 Legs rather dark yellow ; fore coxae yellow with the base dusky, glossed 

 with white in male ; hind tibia black at the tip, in the male at least ; 

 tarsi black, anterior metatarsi yellowish tipped with black. Hind fe- 

 mora in male fringed with black hairs. 



Common in wet places. (E. S. I.) 



37. diadema, Hal. z. j. v. 361. 11 (1831). fraternus, Stg. 

 Stannii, Ztt. bifurcalus, Mq.? Obscure anew, thorace olivaceo, hyposto- 

 mate elongato argenteo, antennis nigris, pedibus Jlavidis, tarsis nigris, 

 metatarsis anterioribus Jlavidis, alis vena subapicali rectangulatim fracta 

 appendiculata ; Mas. tibiis posticis nigricantibus, alulis pallido-ciliatis, 

 alis lineola costali nigra. Long. 2^; alar. 4-| lin. 



Dark brassy, scarcely shining. Face silvery -white, projecting down- 

 wards over the mouth, especially in the male, but not very narrow. 

 Palpi pale at the tip. Antennae black ; third joint short oval, rather 

 pointed; arista naked. Thorax above blackish-ofa. Wings dark 

 hyaline ; bend of subapical vein rectangular with a little branch ; trans- 

 verse discal vein distant from the margin by its own length ; black 

 costal swelling short in male. Fringe of alula pale in male. Lamellae 

 obliquely truncated at the tip, with a narrow black edge, scantily 

 ciliated, except at the jagged outer angle. Legs brownish-yellow ; fore 

 coxae yellowish glossed with white, dusky at the base ; tarsi black ; an- 

 terior metatarsi yellow tipped with black, the hind one a little yellowish 

 at the base in the female ; fore tarsus not longer than tibta. In the 

 male, the fore coxae are partly denuded, the femora dusky at the base 



