TIPHTA.— MYZINE. 247 



the scape of the antennae punctured, beneath bearing long white hair ; the flagellum 

 with a fuscous pubescence. The pronotum very coarsely punctured, except at the 

 apex, the punctured part with long pale fulvous hair. The mesonotum with coarse, 

 large, mostly confluent punctures ; the sides inside the suture with eight large punc- 

 tures, outside it impunctate, except a row of punctures close to the suture. The 

 scutellum bordered with a furrow, and with some large punctures at the base and down 

 the middle. Median segment irregularly shagreened and reticulated ; there are four 

 keels, the lateral ones converging distinctly towards the apex, the central ones irregular 

 and converging at the apex ; the sides of the apical part are irregularly reticulated. 

 The propleurse with the lower half, the metapleurse with the apical half striolate ; the 

 mesopleurse not very strongly punctured ; the breast sparsely covered with long white 

 hair. Abdomen strongly punctured throughout ; the basal segment has an oblique 

 slope, and at the top is a keel which projects in the middle, the part in front of it 

 being crenulated ; the suture on the second segment is wide and deep ; the third and 

 following segments are white at the apex and fringed with golden-fulvous hair; the 

 pygidium is coarsely punctured, covered with golden hair, which is especially thick at 

 the sides; the second ventral segment with the punctures larger and more widely 

 separated than the others. The tibiae and tarsi are densely covered with silvery hair : 

 the metatarsus with longer hair than usual, and provided with three long spines, reddish 

 at the apex; the calcaria, tarsal spines, and the front tarsi reddish. The second 

 cubital cellule at the top and bottom shorter than the first, narrowed at the top ; the 

 first and second recurrent nervures received shortly beyond the middle of the cellule ; 

 the nervures fuscous ; the stigma deep black. 



This species agrees with T. carinata in having the basal abdominal segment keeled ; 

 but it is a larger insect, with the punctuation very much stronger ; the apex of the 

 front tarsal spur not cleft and longer ; the fore tarsi red ; the hind spurs reddish (not 

 black) ; the metatarsus with only four (not five) spines ; the median segment with four 

 keels, and more strongly reticulated ; and the abdomen shorter (compared to the 

 thorax), much more strongly punctured, with the segments white at the apex. 



MYZINE. 



Myzine, Latreille, Hist. Nat. des Crust, et Ins. xiii. p. 269 (1805) ; Gen. Crust, et Ins. iv. p. 112. 

 Plesia, Jurine, Nouv. Methode de class, les Hymen, p. 150 (1807). 



This is a genus of small extent, but of world-wide distribution. The species are not 

 always easy to identify, on account of their great similarity and from their coloration 

 and markings showing great variability. The males, again, from their differing so 

 much from the females, are not, without direct observation, readily allocated to their 

 proper partners of the other sex. 



In all the females of the species from our region the pro- and metapleurae are 

 obliquely striated, so I have not mentioned this in describing them. 



