TENTHEEDINI D^ . 



213 



familj', the second segment is shorter than half the length of 

 the abdomen, being much longer and less high and compressed 

 than in the Cynipides, and the ovipositor is retracted within 

 the abdomen. These insects are true internal parasites, re- 

 sembling the Chalcids. Ihalia is a parasite on a wood-beetle^ 

 This genus has, by Walsh, been placed in the Cynipides. 

 Figites has feather-like antemiEe in the male ; it is a parasite 

 on the larvfe of Sarcophaga. The genus AUotria is a para- 

 site on Aphis. 



Walsh states that two genera, which ho has identified as 

 Kleidotoma and Eucoila are true Figltidce, and "have the 

 wings fringed like a Myrn,ar, and the former has them cmargi- 

 nate at tip with the radial area in my species distinctly open, 

 and the latter simple at tip with the radial area in my species 

 marginally closed by a coarse brown vein." Eucoila is sup- 

 posed to be parasitic on some insect attacking the turnip. 



Tenthredinid.e Leach. The Saw-flies connect the Ilymen- 

 optera with the Lepidoptera. In the perfect state the}- con- 

 form to the Hymenop- 

 terous type, but as 

 larvae they would often 

 be mistaken for Lepi- 

 dopterous larvte, and 

 in their habits closel}' 

 resemble many cater- 

 pillars. The three 

 di\isions of the body, 

 usually so trenchantly 

 marked in the liigher 

 Ilymenoptera, are here ^'8- I'ti- 



less distinct, since the al)domen is sessile, its basal ring being 

 broad and applied closely to the thorax, vvhile the succeeding 

 rings are very equal in size. The head is broad and the thorax 

 Avide, closely resembling that of the Lepidoptera. The wings 

 (Fig. 144, fore-wing) are larger in proportion to the rest 

 of the body than usual ; they are more net- veined, the cells 

 being more numerous and extending to the outer margin.* 



*In treating of this family v,e avail ourselves largely of the important work on 

 the American species, puljlishing at the time of writing, by Mr. E. N'orton, in the 

 Transactions of the American Entomological Societv, vols. 1, 2. Wc therefore 



