128 NOTES ON CHALCIDIiC. 



ulna very much longer than the humerus ; radius rudimentary ; 

 cubitus very short ; stigma very small. Length of the body 

 1£ line. 



Tetrastichus MaderjE. Mas. — Viridi-niger ; caput thorace 

 paullo latius ; antennae 9-articulatae, nigra?, filiformes, setulosae, 

 thorace longiores ; prothorax et metathorax breves ; scutum subsul- 

 catum ; scutellum bicarinatum ; abdomen sessile, fusiforme, thorace 

 brevius ; pedes nigri, genubus tarsisque obscure fulvis, tibiis anticis 

 basi apiceque fulvis ; alae subcinereae, venis fuscis, cubito stigmateque 

 fulvis. Fcem. — Antenna; 8-articulatae, thoraci aequilougae ; abdomen 

 cyaneo-viride, ellipticum ; tibke autica?, genua tarsique lutea. 



Male. — Greenish black. Head short, a little broader than the 

 thorax. Antennae black, filiform, 9-jointed, longer than the thorax ; 

 first joint fusiform ; second elongate cyatbiform ; third and three 

 following linear, setulose, nearly equal ; club lanceolate, much more 

 thau twice the length of the sixth joint. Prothorax and metathorax 

 short. Scutum large, with a slight longitudinal furrow. Scutellum 

 with two well-defined parallel keels. Abdomen sessile, fusiform, 

 shorter than the thorax. Legs black ; knees and tarsi dark tawny ; 

 fore tibiae tawny at the base and at the tips. "Wings slightly cine- 

 reous ; veins brown ; ulna very much longer than the humerus ; 

 radius rudimentary ; cubitus and stigma tawny ; cubitus about one- 

 sixth of the length of the ulna. Antennas 8-jointed, as long as the 

 thorax ; third, fourth and fifth joints nearly equal ; club lanceolate, 

 more than twice the length of the fifth joint. Abdomen elliptical, 

 bluish green. Fore tibiae, knees and tarsi luteous, the latter brown 

 at the tips. Length of the body ^ line. 



• ' Tetrastichus socius. Mas. — Niger ; antennae testaceae, clavata?, 

 thoraci aequilongao ; prothorax et metathorax brevissimi ; parapsidum 

 suturae bene determinate ; pedes pallide testacei, femoribus posticis 

 nigris apice testaceis ; alac anticae fimbriatse, valde setulosae. Fwin. — 

 Abdomen longi-ovatum, subtus carinatum. 



Male. — Black. Head as broad as the thorax. Antenna? testa- 

 ceous, clavate, as long as the thorax ; second joint linear, as long as 

 the third ; fourth shorter than the third ; fifth shorter than the 

 fourth ; club lanceolate, broader than the fifth joint and full thrice its 

 length. Prothorax and metathorax very short. Sutures of the 

 parapsides strongly marked. Abdomen tapering from the base to the 

 tip. Legs pale testaceous ; hind femora black, pale testaceous at the 

 tips. Wings pellucid. Fore wings very pubescent, fringed ; veius 

 pale testaceous, setulose ; ulna longer than the humerus ; radius 

 none ; cubitus rather short ; stigma very small. Female. — Abdomen 



