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Show INSECTA. 254 . 1 the llead as high and as broad l 'glltly elevated and not gibbous, Wllhl ·t and in the Stygides alone s t lways s ot , ' s itself. The antennre are a 1 lways terminated by a subu-a Cepted distinct f rom eac h other, anc . a except in a smal 1 num b er, ex ' . . The probosc1s, late or punch-like JOlOt. . rttle beyond the head, frequently . generally short, extendmg bu: 1 d terminated by a little infla-lS · 't oral caVlty, an d II fir even withdrawn mto. 1 s al i are usually conceale , sma , 1· f on formed by the hps. The P P 1 dhering to one of the threads of £t rm and each, at 1e as t in s.e vera ' a. gulat' than that o f t h e B om-o ' bd men 1S less trlaD . Th . the sucker. The a o 1 ts are genera11y ha1ry. etr . These nsec f bylii and partly squat e. 1 t mentioned. They requently ' 1 gous to those as 1 habits are very ana o ed to the sun, and on eaves. light on the groun d ' on walls expbo s h' h 1 .. ·n their antennre, w 1c are a . t to the Born y u 1 . b Some appro~1ma e . Their proboscis proJects ut vet•y closely approxtmated at .base . little beyofl:d the oral caVlty, as m 81'YGIDEs, Lat.-Stygia, Meig.( 1) t nnre are distant. · In the others the an e b 1 • the proboscis is never long; d • 1 nost glo u ar, · Here, the hea 1S a t 1 d d the extremity of the wmgs does . 1ways concea e ' an tlle palpl are a 1 forming a network. not exb 1'b 1't numerous areo re ANTHRAX, Meig. 11 d where the three ocelli are closely Or Anthrax properly so ca e ' approximated. • p Faun Ins. Germ., xxxiii, 18; · Musca morto; anz., · h .9.. mono; . 1 bl k with russet hair3 on the t O· .B.. sem.w tra, M e·t g. Entlre Y ac T'h e wings from the·t r ba se to 'd r the abdomen. ' . 1 rax and st es o f of their length, are black, winch c? our, a little beyond the hal ~ lmost equal dentations. It lS one . t' forms 1our a . ( ) in termma mg, . . the environs of Parts 2 • of the most common specles m HIRMONEURA, Wied. Meig. . is distant from the Where One Of the three ocelli, the anterior, f St,Juia bad already been appro· (1) See Meigen an dMa cquar t . The name o .,o-priated to a genus of .thde J:epi~or:~ite Encyc. Method., X, 676, by the name (2) This subgenus lS estgna e 1 ~~~~ . DIPTERA. 255 two others which are posterior; the proboscis is concealed. The wings exhibit more nervures than those of the preceding subge- ' nus(l ). There, the head is proportionally shorter, almost hemispherical, and compressed transversely; the antennre are very distant; the trunk is longer than ~he head; the palpi are sometimes exterior, and the extremity of the wings frequently exhibits a reticulation analogous to that of the same organs in the Neuroptera. Those, in which they are always reticulated in the usual manner, where the proboscis is merely a little longer than the head, and the palpi are not apparent, where the first joint of the antennre is cylindrical, somewhat longer than the preceding one, and the last forms an elongated cone, compose the subgenus MuLro, Lat. Meig.-Cyt!terea, Fab.(2) Those, in which the summit of the wings is most frequently reticulated like those of the Neuroptera, and the proboscis is much longer than the head, with the palpi external, in which the two first joints of the antenn;;e are very short, nearly equal in size, almost granose, and the last forming a very short cone, with an abrupt and almost setaceous stilet at the extremity, constitute the subgenus NEMESTRINA, Lat, Oliv. Wied. Where the tarsi are furnished with three pellets., whilst in the preceding subgenera there are only two, and frequently but slightly apparent(3). Two species, one of which-Cythereafasciata,Fab.-is found in Italy and in ci-devant Provence, differ but little as to the reticulation of their wings from the Anthraces. They form the genus F ALLENIA of MM. Meigen and Wiedemann. According to them, the proboscis is susceptible of being curved beneath and along the pectus( 4) • . The genus CoLAX of Wiedemann-Anal. Entom., xviii, .fig. sIn general appearance, antenn;;e and wings, appears to us to approxi- (1) See Meigen. (2) Lat., Meig., Fab., Wied. (3) The Hirmoneur<e should be excepted, according to a figure of one of the tnrsi given by Meigen. (4) See the authors already quoted, and the Encyc. Method., article Nlmes. Mne. |
