— 120 — 



been noticed, is very similar to the cT ; the head 

 is much more sparsely punctured, and the thorax in 

 general more coarsely punctured, while in the <S 

 they have the punctures large and well separated ; 

 abdomen above almost impuctate, else the strong 

 scattered punctures evident in the </ are very fee- 

 ble ; Avings in the middle and at base hyaline, other- 

 wise fuscous, so that they appear bifasciate, hind 

 pair except apex hyahne ; first and second joints of 

 flagellum about equal in lenght ; in the (/ the first 

 is shorter then the second ; colored alike in both 

 sexes». 



Da descripção do género Engycystis (ibidem 

 p. 262) extrahio ainda os seguintes caracteres que 

 não são genéricos, porém se refere.m aos dous sexos 

 da espécie presente : «Form elongate, slender in 

 both sexes. Eyes tolerably large. Antennae rather 

 long and slender, tapering to apex, in lenght about 

 equal to the thorax, joints long and easily distin- 

 guished. Pronotum much longer than dorsulum and 

 shorter than middle-segment, the dorsulum small, 

 if anything, shorter than scutellum. Middle-segment 

 coarsely rugouse or rugoso-reticulate. Last dorsal 

 segment of 9 ^vith a well developped pygidial area, 

 which is smooth and bounded laterally by a sharp 

 ridge, in the c/* this segment is emarginated at 

 apex. Wings ample. Second submarginal cell shorter 

 than either the first or third. Cubital vein of hind 

 wings originating a little before the apex of the 

 submedian cell in both sexes, rarely confluent with 

 the transverso medial nervure». 



cf. A descripção original de Cresson não me 

 é accessivel, porém vi um exemplar no British Mu- 

 seum. O corpo é pre+o, com os segmentos abdomi- 

 naes 2 — 7 vermelhos, as azas fortemente fumadas, 

 sem faixas escuras. O comprimento do corpo desta 

 espécie (a maior de todas) é, segunda a figura de 

 Cameron na Biologia Centrah-americana (Est. XII,. 

 fig. 28) de 14 1/2 millim. Este autor refere-se com 

 as seguintes palavras ao c/* da espécie: «Cresson 

 describes the wings as «dark fuscous, paler at apex» ; 



