Coenoniyiidae. 83 



joint longer than the second, the rest forming an annulated, pointed 

 c'omplex. Eyes hairy, touching in the male, somewhat separated in 

 the female. Clypeus not separate from the epistoma; proboscis rather 

 short, labrum semitubular, of the length of the labium ; hypopharynx 

 more slender; the maxillæ have a long. pointed lacinia, and palpi 

 that are somewhat larger in the female than in the male; the labelia 

 are broad, somewhat protruding forwards'). Thorax a little longer 

 than broad, somewhat arched above; scutellum with two spines. 

 Abdomen robust, about as broad as the thorax, somewhat pointed, 

 consisting of seven segments, the last small; the dorsal plate of the 

 seventh may be hidden. The male genitalia show a median lobe and 

 two hookformed, lateral appendages the basal joint of which is nuich 

 thickened: in the female the abdomen terminates in two small lamellæ. 



Fig. 30. Wing of C. ferruginea. 



Wings witli the cubital vein forked, the anterior branch of the postical 

 vein partly closing the discai cell below, thus there is no postical 

 cross-vein : there are five posterior cells. In rest the wings lie parallel 

 over the abdomen. 



I do not know the larva, bul I borrow the following from Beling 

 (Verhandl. zool. bot. Geseli. Wien, XXX, 1880, 343) and Brauer. It 

 resembles the larva of Xylophagus; the body is cylindrical, of white 

 colour, consisting of twelve segments in all; the head is conical, 

 brown, chitinised, shorter than the following segment, it has on the 

 venlral side> at the base, a soft wart; second segment has on the 

 dorsal surface five chitinised longitudinal bands ; the thoracic segments 

 liave some chitinised spots. The last segment is somewhat thickened, 

 with a flattened part on the dorsal surface at the apex, and with two 

 tomentose, longitudinal grooves at the base; at the apex it has two 

 spines; tbe abdominal segments have, on the ventral surface, indistinct, 

 transverse swellings (Kriechschwielen). The larva is amphipneustic 



I have had only a couple of diied specimens foi' examination, and I therefore 

 chiefly must rely upon earher deseriptions; with regard to the palpi Schiner 

 says: ,undeutlich gegliederf, van d. Wulp says ,tweeledig" and Becher (Denkschr. 

 Kais. Akad. d. Wissensch. Wien, Math. nat. Classe, XLV, 1882, 141, Tab. II, 

 Fig. 13.) says: „ungegliedert". it appeared to me that the palpi in the male 

 are two-jointed, in the female unjointed or indistinctly jointed. 



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