BUGS, &c. MIMICKING ANTS 255 



was sent from Rosako, Usaramo, August, 1888, as 'an 

 ant', together with two undoubted species of these Hymeno- 

 ptera {Polyrrhachis gagates and Pojura tar said). The 

 resemblance between the former species of ant and the 

 Hemlpteron, Gerstaecker describes as strong enough to be 

 deceptive.^ It is principally brought about by the short 



Fig. 3. 



Fig. 4. 



Fig. 3 (x 3). — An ant-like East-African Ilemipterous insect, Mynnoplasta mim 

 (Gerst.), seen from above and from the left side. (From Gerstaecker, 

 Article 6, Heniipkra, p. 9, in Fr. Stiihlmann's Zool. Ergeb. 1 888-1 890, 

 Bd. I. Berlin, 1893.) 



Fig. 4. — An ant-like N.-American beetle, Eudenes picipes, Fab., seen from above 

 and from the right side. 



globular abdomen, united to the thorax by a constricted 

 portion, well seen in the side view represented in Fig. 3. 

 Among Coleoptera the resemblance to ants is very 

 common. I select as an example a little Longicorn 

 {Euderccs picipes, Fab.), which I found very abundantly 

 upon the heads of Umbelliferous plants at Pine Lake, Hart- 



' Zool. Ergcb. einer Reisc in Ost-Afrika, Yx. Sluhlinann, Bd. 1 ; 

 Article 6, Hemiplcra, p. 9: Dietrich Reimer, Berlin, 1893. 



